06-b-technik 75-132 en · bk 212 f91 – 250 1.4903/f91 – 932.9 bar / 500°c 348.4 bar / 600°c...

GESTRATechnical Information

Steam Traps and Valves for Energy Industries · Electronic Controls · Automation

Special Equipment and Vessels for Heat Recovery

2006/2007

Contents

Steam Traps and

Valves

Industrial Electronics

– System solutions –

Special Equipment and Vesselsfor Heat Recovery

GESTRA Academy

Steam Traps and Trap Testing Equipment

Gravity Circulation ChecksScrewed Non-Return ValvesDISCO Non-Return Valves

DISCOCHECK Dual-Plate CheckValvesDISCO Swing Check Valves

Tank Car and Tank Containers ValvesReturn Temperature Control ValvesSelf-Acting Pressure and Temperature ControllersControl Valves

Ball ValvesSafety ValvesStrainersStop Valves

General

Level

Basics, type codeSchematic layout of steam boilerType approvals at a glanceBus system, compact, conventional

Temperature, conductivity,Continuous and intermittent boiler blowdown

Oil and turbidity monitoring, steam flow metering

Bus, compactConventional

Conventional

Condensate Recovery and Vessels for Heat RecoveryDesuperheating PlantsFeedwater Deaerating PlantsMixing Cooler (Blowdown Receiver)

Condensate Dampening PotsSteam Driers and PurifiersPlate-Type Heat ExchangersVessels

Training SeminarsUseful Information/ConversionsInformation ATEX Directive 94/9ECInformation on Pressure Equipment DirectiveSteam Tables

Materials GuideDesign of GESTRA ValvesTechnical Literature, Digital Information

Index by Product Name and Code atBack of Technical Information

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GESTRA Steam Trapsand Steam Trap Monitoring Equipment

Steam Trap Selection .................................................................................................. 5

Thermostatic Steam Trap BK with Duo S.S. (Bimetallic) Regulator .................... 6 – 7

Thermostatic Steam Trap MK with Membrane Regulator .................................... 8 – 9

Ball Float Trap UNA, UNA Special .................................................................. 10 – 14

Stainless Steel Traps MK, SMK, UNA ........................................ see MK, SMK, UNA

Thermodynamic Steam Trap DK........................................................................15 – 16

Steam Traps for Special ApplicationsCondensate Drain Valves AK ...................................................................... 17 – 19Steam Trap with Adjustable Discharge Temperature UBK ........................ 17 – 19Steam Trap for SIP Applications SMK........................................................ 17 – 19Steam Trap for Low-Pressure Steam Heating Plants MK .......................... 17 – 20Steam Traps for Large Condensate Flowrates TK, GK .............................. 17 – 20

Steam Traps for Air-Venting BK, MK ...................................................... see BK, MK

Steam Trap Units ECONOline for UNIVERSAL (Swivel) Connectors ...................... 21

Compressed-Air Draining CondensateBall-Float Traps for Draining Condensate from Compressed-Air and Other Gas Lines UNA .................................................................................. 22

Why Testing Steam Traps ........................................................................................ 23

Steam Trap Monitoring Equipment VK, VKE, VKP .......................................... 24 – 25

Condensate Collector V 21.9/K, Steam Manifold V 21.9 ........................................ 26

Page

We create new dimensions of energy savings

The cost-effective, trouble-free and energy-saving operation of an installation depends on reliable and job-proven steam traps that dischargecondensate without loss of steam.

GESTRA's innovative new ultra-compact ECONOline Steam Trap seriesoffers you all these benefits. Three different steam trap types with identical dimensions and suitable for all conventional Universal Connectors areavailable. And it goes without sayingthat all steam trap units operate withoutloss of live steam!

Cost-saving benefits• Automatic adaptation to varying

pressure conditions• No loss of live steam• Ability to vent air• Long service life• Suitable for superheated steam• Fully functional even without internal

water level• Reduced space requirements

Die ECONOline series offers youthree different trap types with identical ultra-compact bodies tailored to meet all steam trappingrequirements.

GESTRA ECONOline Steam TrapUnits – another milestone on theroad to reduced operating costsand high operating efficiency

GESTRA ECONOline Steam Trap Units for Universal Connectors

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For steam and energy management, we are right on target

Technical information on steam trapping and trap selectionTitle of publication GESTRA Information# / MediumSteam trap selection program CD-ROMCondensate manual: Basic principles of steam trapping, sizing of steam and condensate return lines, Paperback selection and application of steam traps etc.

Physical basis for evaluating steam-trap performance A 1.1Automatic drainage of steam and condensate systems during start-up and shut-down A 1.2Waterhammer and how to avoid it A 1.3How to avoid operating trouble A 1.5Ball-float traps for draining compressed-air plants A 1.6Automatic deaeration of steam-heated heat exchangers A 1.7Drainage of rotary cylinders A 1.8Utilization of sensible heat of condensate C 1.2

Ball f

loat

trap

type

UNA

with

Sim

plex

con

trol

Ball f

loat

trap

type

UNA

with

Dup

lex c

ontro

l

Trap

type

MK

with

mem

bran

e re

gulat

or

Trap

type

BK

with

bim

etall

ic re

gulat

or

For “cold” condensates or condensates with asaturation curve deviating from that of water onlyfloat traps featuring Simplex control (without thermal venting) can be used.

Steam Trap SelectionNot all steam trap types are equally suitable for a given appli-cation. Depending on the operating conditions and service inquestion, one or more systems will be particularly well suited.

The following table contains 15 criteria for steam trap selection based on the operation of the plant and the specificrequirements on the part of the plant owner.

Ratings:1 = Excellent2 = Good3 = Fair or conditional– = Not recommended, unsuitable

Steam trap types

Criteria Please note:1. Operation with Condensate from steam 1 1 1 1

different Condensate from compressed air – – – 1condensates Condensate, distillate from

– – – 1chemical products

2. Different modes Continuous operation:of operation Constant formation of condensate; 2 1 1 1

flowrate and pressure varyDiscontinuous operation:Intermittent formation of condensate; 2 1 1 3*) *) e. g. air venting difficultiesflowrate and pressure vary stronglyAny operation: Heat exchanger may

3**) 2 1 3*)*) Air venting difficulties, **) With partial load (reduced

be controlled on the steam side differential pressure) flowrate possibly not sufficient3. Operation with Up to approx. 30 % of upstream pressure 1 1 1 1

back pressure From 30 % to 60 % of upstream pressure 3*) 1 1 1 *) Possibly readjustment required

> 60 % of upstream pressure 3*) 1 1 1 *) Possibly readjustment required4. Sensitivity to dirt Highly contaminated condensate 1 1 1 15. Air-venting Automatic 1 1 1 3*) *) Manual air-venting

This may apply to small heat exchangers (e. g. laboratory equipment)*) Possibly readjustment required

**) Might require special membrane regulator

6. Condensate Condensate temperature nearlydischarge at boiling temperaturedefinite

2*) 2**) 1 1

temperaturesCondensate undercooling *) with U-type regulator or by readjustmentapprox. 30 K (required)

1*) 1**) – –**) with U-type capsule

Condensate undercooling *) By a corresponding readjustment reduction adjustable 2*) – – – in flowrate; if possible use steam trap with

adjustable discharge temperature UBK

7. Frost resistance 1 1 1*) 3*) *) Only ensured with V-type design8. Condensate Intermittent condensate formation 1 1 1 1

discharge without Reduced condensate formation (< 10 kg/h) 1 1 1 1loss of live steam Continuous condensate formation (> 10 kg/h) 1 1 1 1

9. Resistance to waterhammer 1 1*) 3*) 3*) *) Built-in non-return valve = 110. Non-return valve action 1 1*) –*) –*) *) Built-in non-return valve = 111. Application in vacuum 3 2 1 112. Installation in any position 1 1 –*) –*) *) UNA 1. . . can be converted13. Ease of maintenance 1 1 1 114. Service life of control unit 1 2 1 115. Application with superheated steam 1 3 3*) 1 *) UNA 1. . like MK, UNA 2.. not recommended

6

• Robust regulator for roughest operatingconditions (unaffected by waterhammerand frost)

• Suitable for superheated steam applications

• Automatic air-venting (steam trap can be used for thermal air-venting in steam systems)

• Installation in any position (horizontal and vertical lines)

• Stage nozzle acts as non-return valve

• Stainless steel internals

• Repairable in-line

• Base bushing ensures positive metal-to-metal sealing between bodyand regulator.

• Up to Δp 250 bar g

• Optional extra: Integrated steam trapmonitoring for BK 45 (temperature orsteam loss)

BK 15, DN 40, 50 mm

L

L

Features of the BK series

Thermostatic Steam Traps BK with Duo Stainless Steel (Bimetallic) Regulator PN 40 – PN 630

Pressure/Temperature Ratings *)

BK 45, BK 46DN 15, 20, 25 mm

ApplicationFor open-loop controlled heating processes.Draining of– saturated steam lines– superheated steam lines– steam tracers

Can also be used for thermal air-venting

Air-ventingSteam trap for thermostatic air-venting with bimetallic regulatorThe thermostatic steam traps with corrosion-resistant Duo S.S. (bimetallic) regulator of theBK series can also be used for air-venting.

ApplicationThermostatic steam trap for automatic air-venting and discharge of non-condensable gasesand steam/air mixtures from steam lines and heat exchangers.Special adjustment might be required.

PN Δ PMX Material Max. Pressure / Temp. RatingType

Class [bar] EN ASTM PMA / TMA PMA / TMABK 451) PN 40 22 1.04602) A 1052) 28.4 bar / 250 °C 23.1 bar / 400 °CBK 15 DN 40/50 PN 40 22 1.04602) A 1052) 28.4 bar / 250 °C 23.1 bar / 400 °CBK 465) PN 40 32 1.5415 A 182 F 13) 30.2 bar / 300 °C 25.8 bar / 450 °CBK 27N DN 15/25 PN 63 45 1.5415 A 182 F 13) 47.6 bar / 300 °C 25.8 bar / 500 °CBK 27N DN 40/50 PN 63 45 1.5415 A 182 F 13) 47.6 bar / 300 °C 25.8 bar / 500 °CBK 28 PN 100/160 85 1.5415 A 182 F 13) 124.2 bar / 350 °C 34.3 bar / 530 °CBK 29 PN 160 110 1.7335 A 182 F 12 146.1 bar / 350 °C 44.5 bar / 540 °CBK 212 PN 630 250 1.7380 A 182 F 222) 447.5 bar / 500 °C4) 163 bar / 580 °C4)BK 212 F91 – 250 1.4903/F91 – 932.9 bar / 500 °C 348.4 bar / 600 °CBK 28 ASTM Class 600 85 – A 182 F12 80.4 bar / 350 °C 50.6 bar / 500 °CBK 29 ASTM Class 900 110 – A 182 F12 120.7 bar / 350 °C 43.6 bar / 540 °CBK 212 ASTM Class 2500 250 – A 182 F22 231.7 bar / 500 °C 63.0 bar / 593 °C1) Also available: BK 45 U (discharges condensate with approx. 30 K undercooling).2) Material complies with EN and ASTM requirements.3) Physical and chemical properties comply with EN grade.

ASTM nearest equivalent grade is stated for guidance only.4) DN 25 mm with special nuts and bolts.5) BK 46 replaces BK 16.

*) For more information see data sheet.

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Thermostatic Steam Traps BK with Duo Stainless Steel (Bimetallic) Regulator PN 40 – PN 630

Available End Connections and Overall Lengths

BK 27N, DN 40, 50 mmL

BK 27N, BK 28, BK 29, DN 15, 20, 25 mmL

BK 212, DN 15, 20, 25 mmL

Capacity ChartsThe charts show the maximum hot condensate capacities.

BK 45 DN 15-25 Δpmax 22 bar (Curve 1) BK 46 DN 15-25 Δpmax 32 bar (Curve 1)BK 15 DN 40 and 50 Δpmax 22 bar (Curve 2)

BK 27N DN 40 and 50 Δpmax 45 bar (Curve 1) BK 27N DN 15-25 Δpmax 45 bar (Curve 2)BK 28/BK 28 ASTM Δpmax 85 bar (Curve 2)BK 29/BK 29 ASTM Δpmax 110 bar (Curve 2)BK 212/BK 212 ASTM Δpmax 250 bar (Curve 3)

Overall length (L) in mmType Connection DN 15 DN 20 DN 25 DN 40 DN 50

1/2" 3/4" 1" 11/2" 2"BK 45 Flanged EN PN 40 150 150 160 230 230

Flanged ASME 1501) 150 150 160 230 230DN 15 – 25 Flanged ASME 3001) 150 150 160 230 230BK 15 Screwed sockets 95 95 95 130 230DN 40, 50 Socket-weld (SW) 95 95 95 130 230

Butt-weld (BW) 200 200 200 250 250BK 46 Flanged EN PN 40 150 150 160 – –

Flanged ASME 300 150 150 160 – –Screwed sockets 95 95 95 – –Socket-weld (SW) 95 95 95 – –

BK 27N Flanged EN PN 40 – – – 230 230DN 40, 50 Flanged EN PN 63 – – – 260 300

Flanged ASME 400/600 – – – 241 292Socket-weld (SW) – – – 180 180Butt-weld (BW) – – – 180 180

BK 27N / BK 28 Flanged EN PN 63/100 210 230 230 – –Socket-weld (SW) 160 160 160 – –Butt-weld (BW) 160 160 160 – –

BK 28 ASTM Flanged ASME 400/600 230 230 230 – –Screwed sockets NPT 160 160 160 – –Socket-weld (SW) 160 160 160 – –Butt-weld (BW) 160 160 160 – –

BK 29 Flanged EN PN 160 210 230 230 – –Socket-weld (SW) 160 160 160 – –Butt-weld (BW) 160 160 160 – –

BK 29 ASTM Flanged ASME 900/1500 230 230 254 – –Socket-weld (SW) 200 200 200 – –Butt-weld (BW) 200 200 200 – –

BK 212 Socket-weld (SW) 330 330 330 – –Butt-weld (BW) 330 330 330 – –

BK 212 F91 Butt-weld (BW) 330 330 330 – –BK 212 ASTM Socket-weld (SW) 330 330 330 – –

Butt-weld (BW) 330 330 330 – –1) BK 45 with ASME flanges: overall length 172 mm available on request.

Differential pressure ΔPMX, assuming discharge to atmospheric pressure

Differential pressure ΔPMX, assuming discharge to atmospheric pressure

8

Thermostatic Steam Traps MKwith Membrane Regulator PN 25 – PN 40

• Very sensitive response characteristic

• Function is not impaired by high back pressure

• Automatic air-venting (trap can be used for thermal air-venting in steam systems)

• Installation in any position (horizontal and vertical lines)

• High hot-water capacities even with lowdifferential pressures

• With tandem seat (double sealing) for low condensate flowrates

• Built-in non-return valve

• Stainless steel internals (corrugatedmembrane of Hastelloy)

• Design “U” with undercooling capsule: utilization of a certain amount of sensibleheat by banking-up of condensate,decreasing the amount of flash steam

• Optional extra: Integrated condensatemonitoring for MK 45 (temperature orsteam loss)

MK 35/31, DN 10, 15 mm

L

Features of the MK series

Specification

MK 45-1DN 15, 20, 25 mm

L


STAIN

LESS

STEEL

STAINLESS

STEEL

STAINLESS

STEEL

Air VentingSteam Trap for Thermostatic Air-Venting with Membrane RegulatorThe thermostatic steam traps with membrane regulators of the MK series can also be used for air-venting.

ApplicationThermostatic steam trap for automatic air-venting and discharge of non-condensable gasesand steam/air mixtures from steam lines and heat exchangers.A special type of membrane might be required.

Type Design/Application

MK 45-1 With tandem seat (double sealing)MK 35/31 1) For low condensate flowrates, steam-tracing, steam-line drainage,

air-ventingMK 45-2 With single seatMK 35/32 1) For medium condensate flowrates, steam-tracing, drainage of heat

exchangers, air-ventingWith single seatFor large condensate flowrates,drainage of heat exchangers

MK 36/51 1) With tandem seat (double sealing)For low condensate flowrates, steam tracing, steam-line drainage,venting and vacuum-breaking. Also suitable for food, biological and pharmaceutical applications.

MK 45 A-1 For small and large condensate flowrates; steam-tracing,MK 45 A-2 steam-line drainage, air-venting

1) Can also be used for vacuum breaking (aerating).

PN Δ PMX Material Max. Pressure/Temp. RatingType

[bar] EN ASTM PMA / TMA PMA / TMAMK 35/31 PN 25 21 1.04601) A 1051) 18.6 bar / 225 °C 14.4 bar / 400 °CMK 35/32 PN 25 21 1.04601) A 1051) 18.6 bar / 225 °C 14.4 bar / 400 °CMK 45-1 PN 40 22 1.04601) A 1051) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 45-2 PN 40 22 1.04601) A 1051) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 35/2 S DN 25 PN 40 22 1.0460 A 105 3) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 35/2 S3 DN 25 PN 40 22 1.0460 A 105 3) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 25/2 DN 40/50 PN 40 22 1.0460 A 105 3) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 25/2 S DN 40/50 PN 40 22 1.04602) A 105 2) 3) 28.4 bar / 250 °C 23.1 bar / 400 °CMK 36/51 – 32 1.43014) A 182 F304 32 bar / 240 °C 32 bar / 240 °CMK 45 A-1 PN 40 22 1.44041) A 182 F316 L1) 29.3 bar / 200 °C 24 bar / 400 °CMK 45 A-2 PN 40 22 1.44041) A 182 F316 L1) 29.3 bar / 200 °C 24 bar / 400 °C1) Material complies with EN and ASTM requirements.2) MK 25/2 S DN 40/50: cover made of cast steel GS-C 25

(ASTM nearest equivalent: A 216 Gr. WCB)3) Physical and chemical properties comply with EN grade.

ASTM nearest equivalent grade is stated for guidance only.4) EN nearest equivalent grade is stated for guidance only.*) For more information see data sheet.

MK 25/2 1)MK 25/2 S 1)MK 35/2 S 1)MK 35/2 S3 1)

MK 35/2 S, DN 25 mm

MK 35/2 S3, DN 25 mmL

L

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9

Thermostatic Steam Traps MKwith Membrane Regulator PN 25 – PN 40

MK 25/2 , DN 40, 50 mm


MK 25/2 S, DN 40, 50 (Curve 1)MK 25/2, DN 40, 50 (Curve 2)

MK 45-1 (Curve 1)MK 45-2 (Curve 2)MK 36/51 (Curve 3)

MK 35/31 (Curve 1)MK 35/32 (Curve 2)

STAINLESS

STEEL

STAINLESSSTEEL

Available End Connections and Overall Length

MK 35/2 S3, DN 25 (Curve 3)MK 35/2S, DN 25 (Curve 4)

Overall length (L) in mmType Connection DN 8 DN 10 DN 15 DN 20 DN 25 DN 40 DN 50

1/4" 3/8" 1/2" 3/4" 1" 11/2" 2"MK 45-1 Flanged DIN PN 40 – – 150 150 160 – –MK 45-2 Flanged ASME 1501) – – 150 150 160 – –

Flanged ASME 3001) – – 150 150 160 – –MK 45 A-1 Screwed sockets – – 95 95 95 – –MK 45 A-2 Socket-weld (SW) – – 95 95 95 – –

Butt-weld (BW) – – 200 200 200 – –MK 35/31 Screwed sockets – 70 70 – – – –MK 35/32 Socket-weld (SW) – – 95 – – – –

Flanged DIN PN 40 – – – – 160 230 230Flanged ASME 150 – – – – 160 230 230Flanged ASME 300 – – – – 160 230 230Screwed sockets – – – – 95 130 230Socket-weld (SW) – – – – 95 130 230

MK 36/51 Screwed sockets 65 65 65 65 – – –Union butt-weldnipples 2)

– – 150 – – – –

Progressive ring fitting – 93.5 93.5 93.5 – – –Hinged clamp – 65 65 65 65 – –

1) MK 45 with ASME flanges: overall length 172 mm available on request.

2) Made of carbon steel orstainless steel 1.4435

MK 25/2DN 40 – 50MK 25/2 SDN 40 – 50MK 35/2 SDN 25MK 35/2 S3DN 25

L

MK 25/2 S, DN 40, 50 mm

L

MK 36/51, DN 8, 10, 15, 20 mmConnection: screwed socket

MK 36/51, DN 8, 10, 15, 20 mmConnection:

hinged clamp

MK 36/51, DN 15 mmDesign with union butt-weld nipples

LL L

10

Ball-Float Traps UNAPN 16 – PN 160

Features of the UNA series• Unaffected by back pressure and

condensate temperature

• No loss of live steam due tocontinuous water seal at the seat

• No banking-up of condensate evenwith extreme load and pressurefluctuations

• Particularly well suited for heatexchangers controlled from thesteam side

• Unaffected by dirt

• Automatic thermostatic air-venting(Duplex design)

• Ideal for discharging coldcondensates, distillates andcondensates derived from chemicalproducts (Simplex design)

• Repairable in-line

• Thanks to the rolling ball valve onlyreduced operating forces and smallcontrol units are required (compact,lightweight design for large flowrates)

L

UNA 23/25/26hDN 15 – 50 mm

UNA 23/25/26 vDN 15 – 50 mm

ApplicationCondensate discharge without banking-up, even at varying operating conditionsand back pressure. Automatic air-venting (Duplex design). Also for thedischarge of cold condensates anddistillates, and for draining gas andcompressed air systems (Simplexdesign).

L

L2

UNA 27 hDN 25 – 50 mm

UNA 39DN 15, 25, 50 mm

L1

Pressure/Temperature Ratings and Designs **)

STAINLESSSTEEL

STAINLESSSTEEL

Type PNΔPMX Materials Pressure/Temperature Ratings[bar] EN ASTM 1) PMA / TMA PMA / TMA

UNA 14*) 25 13 EN-JS 1049 – 25 bar / 20 °C 15 bar / 350 °CUNA 23 16 13 EN-JL 1040 A126 Cl. B 16 bar / 120 °C 9.6 bar / 300 °C

UNA 16*) 40 221.0460; A105;

40 bar / 20 °C 23.1 bar / 400 °C1.0619 A216 WCB

UNA 25 40 32 EN-JS 1049 – 32 bar / 250 °C 25 bar / 350 °C

UNA 26 40 321.0460; A105;

32 bar / 250 °C3) 21 bar / 400 °C1.0619 A216 WCB

UNA 27 h 63 45 1.5419 A217 WC1 56 bar / 250 °C 40.6 bar / 450 °CUNA 38 100 80 1.54154) A182-F1 100 bar / 150 °C 44 bar / 500 °CUNA 39 160 140 1.7335 A182 F12 160 bar / 300 °C 35 bar / 550 °CUNA-SpecialTyp 62

16 16 EN-JL 1040 A126 Cl. B 16 bar / 120 °C 9.6 bar / 300 °C

UNA-Special 25 22 1.0619 A216 WCA 22.6 bar / 120 °C 14.4 bar / 400 °CUNA 25 22 1.0619 A216 WCA 22.6 bar / 120 °C 14.4 bar / 400 °CUNA-Special 63 45 1.5419 A217 WC1 56 bar / 250 °C 40.6 bar / 450 °CUNA 16 A

40 221.44042) A182 F 316L2) 40 bar /

25.8 bar / 300 °C1.4308 2) A351 CF8 2) –196 °C / 20 °C

UNA 26 h 40 32 1.4408 A351 CF8 M 40 bar / 20 °C 25.8 bar / 300 °C

1) ASTM nearest equivalent grade is stated for guidance only.Physical and chemical properties comply with EN grade.

2) Body/cover material 3) UNA 26 DN 40, DN 50: 26 bar/250 °C4) Body 1.5415, cover 1.7357

*) UNA 14 replaces UNA 13UNA 16 replaces UNA 15

**) For more information see data sheet.h: for horizontal lines

UNA 14/16 vDN 15 – 25 mm

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11


L1

L1

L2

L2

UNA-Special Type 62, PN 16UNA-Special, PN 25UNA-Special, PN 63

UNA PN 25


Optional Items for Ball-Float Traps

Available Designs

TypeEnd connection options Orifice (O) for Control unit

horizontal vertical angle pattern max. differential pressure Simplex Duplex Simplex-RUNA 14*) x1) x1) O 4, 13 x x xUNA 16*), 16A*) x1) x1) O 4, 13, 22 x x xUNA 23 x x O 2, 4, 8, 13 x x xUNA 25/26 x x O 2, 4, 8, 13, 22, 32 x x xUNA 27h x O 16, 28, 45 x xUNA 38 x x O 50, (64), 80, 80 max. x xUNA 39 x O 80, 110, 140, 140 max. xUNA-Special Type 62, PN 16 x O 22)3), 3.54), 5, 10, 16 x6) x2)7)UNA-Special PN 25 x O 25), 3.54), 5, 10, 16, 22 x6) x7)UNA PN 25 x O 2, 3.5, 5, 8, 12, 16, 22 x6)UNA-Special PN 63 x O 16, 22, 32, 40, 45 x6)

1) A conversion of “h” to “v” or vice versa is possible2) This design is not available for DN 100 mm3) This design is not available for DN 80 mm4) This design is not available for DN 65 mm

5) This design is not available for DN 50 mm6) Simplex: Flow control + hand vent valve + float lifting lever7) Duplex: Flow control + automatic air-venting*) UNA 14 replaces UNA 13, UNA 16 replaces UNA 15

Item TypeSightglass cover UNA 23Float lifting lever with gasket UNA 23, 25, 26 (UNA 27 h and 38 on request)Vent valve with gasket (for Duplex design) UNA 23, 25, 26, 27 h, 38

Simplex: Float control (without thermostatic bellows)Duplex: Flow control + automatic air-ventingSimplex-R: Float control + inner vent pipe

Type ConnectionOverall length (L) in mm

DN 15 DN 20 DN 25 DN 40 DN 501/2" 3/4" 1" 11/2" 2"

UNA 14h, 14v Flanged EN PN 25 150 150 160 – –Screwed sockets 95 95 95 – –

UNA 16h, 16v, Flanged EN PN 40 150 150 160 – –UNA 16Ah, 16Av Flanged ASME 150 RF 150 150 160 – –

Screwed sockets 95 95 95 – –Socket-weld (SW) 95 95 95 – –Butt-weld (BW) 200 200 200 – –

UNA 23h, 23v Flanged EN PN 16 150 150 160 230 230UNA 25h, 25v Flanged EN PN 40 150 150 160 230 230UNA 26h, 26v Flanged EN PN 40 150 150 160 230 230UNA 26h Flanged EN PN 40 210 210 230 320 320

UNA 26h Flanged ASME 150 + 300 RF 210 210 230 320 320Screwed sockets 200 200 200 255 255Socket-weld (SW) 200 200 200 230 230Butt-weld (BW) 200 200 200 230 230

UNA 27h1) Flanged EN PN 63/PN 100 300 – 300 420 416and Flanged ASME 600 RF 300 – 300 421 427UNA 38 Socket-weld (SW) 300 – 300 420 420

Butt-weld (BW) 300 – 300 420 420UNA 39 L1/L2 L1/L2 L1/L2

Flanged EN PN 160 215/285 – 230/300 – 245/315Flanged ASME 900 RF 250/320 – 260/330 – 280/350Butt-weld (BW) 170/240 – 170/240 – 170/240

1) not available as DN 15

Type ConnectionLength L1/L2 in mm

DN 50 DN 65 DN 80 DN 1002" 21/2" 3" 4"

UNA-Special Flanged EN PN 16 L1 – 470 490 700Type 62, PN 16 L2 – 395 420 595UNA-Special Flanged EN PN 25 L1 445 470 – –PN 25 L2 345 395 – –UNA PN 25 Flanged EN PN 25 L1 – – 140 140

L2 – – 335 400UNA-Special Flanged EN PN 63 L1 – 565 690 700PN 63 L2 – 400 435 450

STAINLESSSTEEL

STAINLESSSTEEL

UNA 38h

12

UNA 27 h UNA 39, DN 15, 25 and 50


Capacity ChartsThe charts show the maximum hot condensate capacities for the range of float-controlled orifices (O) and sizes available.

UNA 14, UNA 16 UNA 23, UNA 25, UNA 26

, AO 22

*

* max. admissible differential pressure 2 bar

Differential pressure ΔPMXDifferential pressure ΔPMX

Differential pressure ΔPMX Differential pressure ΔPMX

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Capacity ChartsThe charts show the maximum hot condensate capacities for the range of orifices (O) and sizes available.

UNA PN 25, DN 80 and 100

Available orifices(O)

1 DN 80 O 222 DN 80 O 16

DN 100 O 223 DN 80 O 124 DN 100 O 165 DN 80 O 8

DN 100 O 126 DN 80 O 5

DN 100 O 87 DN 80 O 3.58 DN 100 O 59 DN 80 O 2

DN 100 O 3.510 DN 100 O 2

Available orifices(O)1 DN 65 O 162 DN 65 O 10

DN 80 O 163 DN 80 O 104 DN 100 O 165 DN 65 O 56 DN 80 O 57 DN 65 O 2

DN 80 O 3.5DN 100 O 10

8 DN 100 O 59 DN 100 O 3.5

10 DN 100 O 2

UNA-Special Type 62, PN 16

10

UNA 38, O 50, 64, 80 UNA 38, O 80 max

Cap

acity

Cap

acity

14

Ball-Float Traps UNA and UNA-SpecialPN 16 – PN 63

UNA-Special PN 63 (PN 40)

Available orifices(O)

1 DN 65 O 452 DN 65 O 403 DN 80 O 454 DN 65 O 32

DN 80 O 405 DN 100 O 456 DN 65 O 22

DN 100 O 407 DN 80 O 328 DN 65 O 169 DN 100 O 32

10 DN 80 O 2211 DN 80 O 16

DN 100 O 2212 DN 100 O 16

UNA-Special PN 25, DN 50 and 65


Available orifices(O)1 DN 50 O 222 DN 50 O 16

DN 65 O 223 DN 50 O 10

DN 65 O 164 DN 65 O 105 DN 50 O 56 DN 50 O 3.5

DN 65 O 57 DN 65 O 2

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• Discharge with virtually no banking-up

• Robust, insensitive regular

• Installation in any position

• Max. admissible back pressure 80 % of the upstream pressure

Features of the DK series

Application

Type Application

DK 45-L Rhombusline body with enclosed, weather-resistant regulator for discharging steam linesand tracing systems without banking-up of condensate

DK 47-L Compact steam trapDK 57-H for small condensate flowrates for discharging steam lines and tracing

systems without banking-up of condensateDK 47-H Compact steam trapDK 57-H for large condensate flowrates for discharging steam lines and tracing

systems without banking-up of condensate

DK 45-L

DK 47

DK 57

Thermodynamic Steam Traps DKPN 40, PN 63/Class 600


PN Δ PMX Materials Pressure/Temp. RatingType

[bar] EN ASTM PMA / TMA PMA / TMADK 45-L PN 40 32 1.04601) A 1051) 28.4 bar / 250 °C 23.1 bar / 400 °CDK 47 PN 63 / Class 600 42 1.40272) A 743CA40 63 bar / 120 °C 42 bar / 400 °CDK 57 PN 63/ Class 600 42 1.40212) AISI 420 63 bar / 120 °C 42 bar / 400 °C1) Material complies with EN and ASTM requirements.2) ASTM nearest equivalent grade is stated for guidance only.


Pressure/Temp. RatingType Connections DN 10 DN 15 DN 20 DN 25

3/8" 1/2" 3/4" 1"DK 45-L Flanged EN PN 40 – 150 150 160

Flanged ASME 1501) – 150 150 160Flanged ASME 3001) – 150 150 160Screwed sockets – 95 95 95Socket-weld (SW) – 95 95 95Butt-weld (BW) – 200 200 200

DK 47-L Screwed sockets 78 78 90 95DK 47-H Screwed sockets – 78 90 95DK 57-L Screwed sockets 55 65 80 –DK 57-H Screwed sockets – 70 80 901) DK 45 with flanged ASME: Overall length 172 mm on request.

L

L

L

16

Thermodynamic Steam Traps DKPN 40, PN 63/Class 600


DK 47 DK 57

Cap

acity

Differential pressure

Cap

acity


A1

17

Application

AK 45, DN 15, 20, 25 mm

UBK 46, DN 15, 20, 25 mm

SMK 22, DN 15 mm

L

L

L


Steam Trapsfor Special Applications

STAINLESS STEEL

STAINLESSSTEEL

Δ PMX Materials Max. Pressure/Temperature RatingType PN

[bar] EN ASTM PMA / TMA PMA / TMAAK 45 40 1.04601) A 1051) 28.4 bar / 250 °C 23.1 bar / 400 °CUBK 46 40 32 1.04601) A 1051) 28.4 bar / 250 °C 23.1 bar / 400 °CSMK 22

10 6 1.4435 – 10 bar / 150 °C

MK 20 6 4,5 EN-JM 1030 – 4.5 bar / 250 °C, 3.6 bar / 300 °C,TK 23 16 1 – 10 EN-JL 1040 A 126 Cl.B2) 16 bar / 120 °C 9.6 bar / 300 °CTK 24 25 1 – 14 1.0619 A 216 Gr. WCB2) 22.6 bar / 120 °C 14.4 bar / 400 °CGK 11 163) 6 EN-JL 1040 A 126 Cl.B2) 16 bar3) / 120 °C 9.6 bar / 300 °C

1) Material complies with EN and ASTM requirements.2) ASTM nearest equivalent grade is stated for guidance only.

Physical and chemical properties comply with EN grade.3) GK 11, DN 150 mm = PN 10*) For more information see data sheet.

TypeAK 45 Condensate drain valve for discharging condensate from steam

systems during start-up and draining residual condensate at shut-down,with integral Y-type strainer and hand purging knob.Factory-set closing pressure 0.8 bar.

UBK 46 Steam trap with adjustable condensate discharge temperature, thereby suppressing the formation of flash steam.With Y-type strainer.

SMK 22Steam trap for SIP applications.

MK 20 Steam trap for low-pressure steam-heating installations.TK 23, TK 24 Steam trap with thermostatic pilot control using thermostatic

capsules for the discharge of very large condensate flowrates with relatively continuous condensate formation.

GK 111) Thermodynamic steam trap with stage nozzle for the discharge of very large condensate flowrates. With integral Vaposcope (sightglass) for optimum trap adjustment.

1) DN 50 mm: GK 21

18

Available End Connections and Overall Lengths

MK 20, DN 15, 20 mm

TK, DN 50, 65, 80, 100 mm

GK 11, DN 65, 80, 100, 150 mmGK 21, DN 50 mm

L

L

L


STAINLESSSTEEL

Type Connection

Overall length (L) in mmDN DN DN DN DN DN DN DN15 20 25 50 65 80 100 1501/2" 3/4" 1" 2" 21/2" 3" 4" 6"

AK 45 Flanged EN PN40 150 150 160 – – – – –Flanged ASME 150 150 150 160 – – – – –Flanged ASME 300 150 150 160 – – – – –Screwed sockets 95 95 95 – – – – –

UBK 46 Flanged EN PN40 150 150 160 – – – – –Flanged ASME 150 150 150 160 – – – – –Flanged ASME 300 150 150 160 – – – – –Screwed sockets 95 95 95 – – – – –Socket-weld (SW) 95 95 95 – – – – –

SMK 22 Butt-weld (BW) 83 – – – – – – –

MK 201) Male/female thread 120 125 – – – – – –TK 23 Flanged EN PN16 – – – 230 290 310 350 –TK 24 Flanged EN PN25 – – – 230 290 310 350 –GK 112) Flanged EN PN16 – – – 320 420 420 620 900

1) Straight-through or angle design (see representation)2) DN 50 mm: GK 21

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19


Capacity ChartsThe charts show the maximum hot condensate capacities. (Exception: AK 45 – cold water capacity.)

AK 45 Cold Water capacity

UBK 46

SMK 22

3 4 6 8 10 20 3040

6080

10021

100

200

300

400

500

600

800

10002000

1000

800

600

500

400

300

1

2

ΔPMX

[psi]

QC

[kg/

h]

QH

QC

[lb/

h]

0.1 0.3 0.6 1 3 6 100.2 0.4 0.8 2 4 8

[bar]

[kg/h] [lb/h]

The chart shows the maximum capacities forhot and cold condensate.

Curve 1This curve indicates the max. capacity of hotcondensate that the steam trap with regulating membrane Steriline can dischargewith virtually no banking-up.

Curve 2This curve shows the max. capacity of coldcondensate that the steam trap can discharge(20 °C at start-up).

Service pressure (bar) 1 2 4 8 12 16 20 26 32Opening temperatureat factory setting

(°C) 72 74 78 85 89 93 97 103 109

Capacity at 10 K below94 113 136 164 184 198 211 226 239

opening temperature (kg/h)

Cold-condensate capacity267 390 570 832 1039 1215 1373 1584 1774

at 20 °C (Start-up capacity)(kg/h)

20


TK 23, TK 24

MK 20


For differentialpressures < 1 bar use capsule “OH2”(max. service pressure 5 bar).

GK 11, GK 21

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21

Application

Specification

Steam Trap Units

for UNIVERSAL (Swivel) Connectors

Steam trap unit BK 35A/7

Steam trap unit MK 35A/7

Steam trap unit DK 36A/7

PN Δ PMX Materials Pressure / TemperatureType

Class [bar] EN ASTM PMA / TMA PMA / TMABK 35A/7 300 22 1.4408 A 351-CF8M 49.6 bar / 20 °C 29.3 bar / 400 °CMK 35A/7 300 22 1.4408 A 351-CF8M 49.6 bar / 20 °C 29.3 bar / 400 °CDK 36A/7 300 29 1.4408 A 351-CF8M 49.6 bar / 20 °C 29.3 bar / 400 °CUC, UCY 300 - 1.4408 A 351-CF8M 49.6 bar / 20 °C 29.3 bar / 400 °C

Available Connections and Lengths

Type ConnectionLength L

1/2" 3/4" 1"BK 35A/7; MK 35A/7; DK 36A/7 Universal connector 65 65 65UC, UCY Screwed sockets BSP or 75 75 75

NPT, Socket-weld ends 75 75 75butt-weld ends available on request

TypeBK 35A/7 "Thermostatic/thermodynamic bimetallic" trap unit with corrosion-

resistant Duo S.S. regulator unaffected by waterhammer, for condensate discharge with virtually no banking-up and automatic air-venting of steamlines and tracing systems.

MK 35A/7 "Thermostatic capsule" trap unit with corrosion-resistant membrane regulator 5N1 unaffected by waterhammer, for condensate discharge with virtually no banking-up and automatic air-venting of steam lines and tracing systems.

DK 36A/7 "Thermodynamic" trap unit for condensate discharge with virtually no banking-up.

UC Universal connectorUCY Universal connector with integrated strainer

Features• Maintenance-free, ultra-compact steam traps made from stainless steel, suitable

for all UNIVERSAL (Swivel) connectors

• Installation in any position

• Integrated seals for connector

• Only two screws make for a quick and easy installation

• All trap units are optionally available with a UNIVERSAL connector (not fitted)

Universal connector with integrated strainer UCY

The chart shows the discharge capacity of hot condensate

L

BK 35A/7

DK 36A/7

MK 35A/7

L

22

Ball-Float Traps for Draining Condensate from Compressed-Air and Other Gas Lines UNA

Specification

Capacity Chart Hints on Installation

Features• Liquid drainer for compressed air and gases with

ball float and rolling ball valve

• The trap is suitable for draining gas and compressed air systems

• Purging device and connection for air-balancepipe included as standard

• Closing unit for temperatures up to 40 °C with rolling ball made from Perbunan, up to120 °C with rolling ball made from steel

UNA 14 Pv

L

Max.differen- Material Max. service Max. serviceType Design PN tial pressure pressure temperature

Δ PMX [bar] 2) EN ASTM1) PMA [bar] TMA [°C]UNA 14 P, h + v with S.S. valve ball 25 16 EN-JS 1049 – 25 120(convertible) with Perbunan valve ball 25 16 EN-JS 1049 – 25 401) Physical and chemical properties comply with EN grade. 2) Inlet pressure minus outlet pressure.

Higher pressure ratings and other materials available on request.

UNA 14P


Type ConnectionOverall length L in mm

DN 15 DN 20 DN 251/2" 3/4" 1"

UNA 14 Ph Screwed sockets3) 95 95 95Flanged EN PN 25 150 150 160

UNA 14 Pv Screwed sockets3) 95 95 95Flanged EN PN 25 150 150 160

3) Screwed sockets BSP to ISO 228/1 or screwed sockets NPT

The condensate/distillate must be free to fall towards the trap. Isolating valves in horizontal lines lead to the formation of water pockets. In this case an air-balancepipe is required (see drawing).

Air-balancepipe

Air trap for horizontalinstallation

Collectingpocket

With or without valve;valve spindle horizontal

Air line

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23

Testing Steam Traps

Like any other industrial valve steam traps are subject towear and their correct functioning can be impaired byprecipitated solids and dirt deposits.

To assess the performance of a steam trap the followingquestions have to be answered:

• Does the steam trap work properly?• If not, does the faulty trap cause a loss of steam

(leakage) or banking-up of condensate (obstructeddischarge passage)?

Faulty steam traps are a major source of waste in a steamdistribution system. A trap that is blowing live steam is theworst offender, but traps that are plugged or stuck closedcan also be costly.The decreased plant efficiency due to loss of energy andadditional make-up water results in lost production.Furthermore, an increase of pressure is liable to arise incondensate systems which will lead to difficulties at alllocations where condensate is discharged.The magnitude of such a steam loss depends on the cross-sectional area of the leak and, at the same time, theamount of discharged condensate. Locations where onlysmall amounts of condensate are formed and discharged, e. g. drainage points in steam lines and tracing systems, are particularly problematical. On the other hand, locations where relatively large amounts of condensate are discharged will not give rise to considerable loss of livesteam because of the presence of a large volume of liquid.

Steam traps which are obstructed or stuck closed do notcause loss of energy and/or water but reduce – to a greateror lesser extent – the efficiency of heat-transfer equipmentand steam users. And waterhammer caused by condensatebanking-up leads to considerable physical damage insteam and condensate systems.

Experience shows that installations where no regular traptesting and servicing takes place have a failure rate ofdefective steam traps in the order of 15 – 25 %. Regularmaintenance and trap testing, which should be carried out at least once a year, can strongly reduce the failure rate to 5 %.

Test Systems

Steam traps can be tested during operation by usingsightglasses, ultrasonic listening devices or level meters.

Sightglasses (Vaposcopes Type VK 14, VK 16) provide aneffective means of observing the flow of liquids in pipework. They are installed upstream of the traps, andallow the assessment of the traps by making their operation visible. A satisfactory trap installation must pass all thewater that flows to it without discharging live steam andmust not be rendered inoperative by particles of dirt or byan accumulation of air.

Level meters use conductivity to monitor steam trapperformance. A test chamber with an integral level electrodeis installed upstream of the trap to detect any defectivesteam trap. The corresponding output signal is displayed bythe Remote Test Unit NRA 1-1x (remote monitoring) or bythe Hand-Held Test Unit NRA 1-2 (local testing). Thesystem VKE can monitor all types and makes of steam traps to detect loss of live steam. The correct operation of RHOMBUSline steam traps type BK 45/46, MK 45, UBK 46can be verified by using the compact-type level probes NRG 16-25, NRG 16-26. The test station NRA 1-1x or thehand-held test unit NRA 1-2 will evalute the data comingfrom the system VKE.

Another way to test traps is to use an ultrasonic listeningdevice which detects the sound produced by steam flowing through the traps. Depending on the test systemused the sound sensed by the device is either graphicallyrepresented in the form of a curve (VKP 40) or indicated by the deflection on the scale of a meter (VKP 10).When using the VKP 10, the field data specialist has toassess the indicator deflection and, consequently, the operation of the steam trap. The VKP 40, however, candirectly track leaks associated with faulty steam traps andprovides comprehensive reporting and a complete trap survey history.

Annual costs caused by steam loss

Number of steam traps installed

Annual failure rate(Empirical value with first check approx. 15 – 25 %)

A Number of defective steam traps

B Steam loss per steam trap (kg/h)

C Annual operating hours

D Annual steam loss (kg) =

E Cost of steam per ton

F Annual loss in EURO =

Example

A Number of defective steam traps 10

B Steam loss per steam trap 3 kg/h

C Annual operating hours 8000

D Annual steam loss 240000 kg

E Cost of steam per ton 15 Euro

F Annual loss 3600 EuroBy the way:

A new steam trap costs – depending on the end connection– only approx. 160 to 200.

D /1000 x E

A x B x C

24

Application

Steam Trap Monitoring Equipment

Available Connections and Overall Lengths

Vaposcope VKThe Vaposcope can be used in horizontal and vertical pipework without any modifications.Installation upsteam of the steam trap.The application is limited to fluids with pH value 9 (VK 14) or 10 (VK 16).VK 16 comes standard with mica disc.

Test Set VKEConsisting of: Test chamber with integral level electrode NRG 16-19 / NRG 16-27for steam traps of all types and makes. And: Test Unit NRA 1.3 for continuousremote monitoring of up to 16 steam traps at the same time for loss of live steam orbanking-up of condensate.

VK 14

VK 16

L

L

L

Electrodeconnectioneither on the left or on theright side.

Test chamber VKE 16


STAINLESSSTEEL

TypeVaposcope Sightglass for checking heat exchangers and steam traps (installation up-VK 14, VK 16 stream of the traps). Visual supervision of flow conditions in condensate lines.VKE Test chamber with level electrode for monitoring steam traps to detect

loss of live steam/banking-up of condensate. Installation in horizontal lines.Vapophone Ultasonic detector for detecting steam leakage in steam systems; VKP 10 for monitoring steam traps and stop valves.TRAPtest Computer-based monitoring, recording and evaluation system for steamVKP 40/VKP 40Ex traps of all types and makes to detect loss of steam and condensate banking up.NRG 16-19 Level electrodes for installation in the test chamber VKE or in the body of NRG 16-27 Rhombusline steam traps. Designed for detecting loss of live steam/NRG 16-28 banking-up of condensate (used in conjunction with test unit NRA 1.3).

Response sensitivity 1.0 µS/cm.

Materials Max. Pressure/Temperature RatingType PN

EN ASTM PMA / TMA PMA / TMAVK 14 16 EN-JL 1040 A 126 B1) 16 bar / 120 °C 11.2 bar / 250 °CVK 16 40 1.0460 A 1051) 40 bar / 20 °C 25.8 bar / 300 °CVKE 16 40 1.06192) A 216 - WCB1) 28.4 bar / 250 °C3) 23.1 bar / 400 °C 3)VKE 16A

40 1.4571 TP 316 Ti 1) 38 bar / 120 °C3) 32.5 bar / 250 °C 3)

NRG 16-19NRG 16-27 40 1.4404 F 316L 40 bar / 20 °C 32 bar / 238 °CNRG 16-281) ASTM nearest equivalent grade is stated for guidance only.

Physical and chemical properties comply with EN grade.2) Forged steel flange (1.0460).3) Max. working pressure/temperature of the electrodes: 32 bar / 238°C.

Sensitivity of electrodes NRG 16-19, NRG 16-27: 1.0 µS/cm.*) For more information see data sheet.

Type ConnectionOverall length (L) in mm

DN 15 DN 20 DN 25 DN 40 DN 501/2" 3/4" 1" 11/2" 2"

VK 14 Flanged EN PN 16 130 150 160 200 230VK 16 Flanged EN PN 40 150 150 160 230 230

Flanged ASME 150 150 150 160 230 230Flanged ASME 300 150 150 160 230 230Screwed sockets 95 95 95 130 210Socket-weld 95 95 95 130 210

VKE 16 Flanged EN PN 40 150 150 160 – –Flanged ASME 150 150 150 160 – –Flanged ASME 300 150 150 160 – –Screwed sockets 95 95 95 – –Socket-weld 95 95 95 – –

VKE 16 A Flanged EN PN 40 160 160 160 200 230NRG 16-19

External thread 3/8" BSPNominal length = 31 mm

NRG 16-27 with integrated Pt 1000 thermocoupleNRG 16-28 External thread M 24 x 1.5 for installation in the bodies of the Rhombusline

steam traps series with integrated Pt 1000 thermocouple

NRG 16-19 NRG 16-27 NRG 16-28

A1

25

Vapophone VKP 10

NRA1-1

ok

1

2

9

8

7

6

5

4

3

18

17

16

15

14

13

12

11

10

Remote monitoring with Universal Test Chamber*Remote monitoring Rhombusline*

max. 16 steamtraps typeRhombusline,e.g. MK 45-1 orBK 45

max. 16test chamberVKE 16/16A

Screened cable max. 500 m long

Test station NRA 1-3

ElectrodeNRG 16-19or NRG 16-27

Steam Trap Monitoring Equipment

1

1 2 3 4 5 6

0TEST

2

34 5

6

7

8

910

The VKP 10 is used to detect sound in the ultrasonic range as caused by flowing steam through a steam trap.

The ultrasonic vibrations are detected by a probe andconverted into electric signals which are indicated on the meter of a measuring instrument.

Protection: IP 41

Monitoring, Recording and Evaluation System for steam traps of all types and makesWith the aid of the VKP 40Ex (explosion proof) – intrinsicallysafe version for hazardous locations – or the VKP 40 steamtraps can be checked for loss of live steam and banking-up ofcondensate, thus evaluating their performance. The PC software enables:■ Recording and organising of all steam trap data■ Storage and evaluation of all test results■ Simple and easy steam loss calculation for failed steam

traps■ Print out of clearly listed repair jobs.Features:■ Hand-held terminal with user-friendly interface for ease of

operation (only 5 keys)■ Illuminated display for showing the recorded sound

emissions as curves (visual indication of steam losses)■ Data exchange between PC and hand-held terminal at the

click of the mouse■ PC software works with windows versions from other

countries■ Protection: IP 65■ VKP 40Ex approval BVS 03 ATEX E 149

CE 0158 Ex II 2G Eex ib II C T4

Measuringinstrument

Name plate Battery charger

230 V/ 50 Hz

Measuring Charging

Connectingcable

Sensitivity adjustor Meter

Connectingcable

System VKE

TRAPtest VKP 40/VKP 40Ex

Probe

Testing and diagnostic system

GESTRANRA 1-3

KondensatableiterNR

Status

Dampfdurchschlag

Kondensatstau

Kabelbruch/Kurzschluss

CN

! E –ON

SO2ON

SO1

TE

GESTRANRA 1-3

KondensatableiterNR

Status

Dampfdurchschlag

Kondensatstau

Kabelbruch/Kurzschluss

CN

! E –ON

SO2ON

SO1

TE

Screened cable max. 500 m long

* Combination possible

Test station NRA 1-3

Alarm

Electrode NRG 16-28

Alarm

26

L2L1

H

H2

DN1

H3

ML

D1

H1

Materials

Condensate Collector and Steam ManifoldPN 40, DN 40, 50V 21.9/K, V 21.9

DescriptionCompact-type condensate collector asvertical design with internal immersion tubeand integrated bellows-sealed shut-offvalves (V 21.9/K). Without immersion tubeas steam manifold V 21.9 with integratedbellows-sealed shut-off valves. Lateralconnections in DN 15, 20 or 25 available.Collecting tube in DN 40 or 50.

Function V 21.9/KThe condensate discharged by the steamtrap flows downwards between immersiontube and external collecting tube, therebycreating a water pocket into which theimmersion tube enters. The space betweenimmersion tube and collecting tube abovethe water pocket acts as a dampeningcushion consisting of flash steam and airbubbles. This steam cushion preventseffectively water hammer like a dampeningpot.

The condensate flowing into the unit will beforced into the higher condensate collectingline as a function of its service pressure(differential pressure).

Pressure/Temperature Ratings

ConnectionsFlanged EN, PN 40Flanged ASME Class 150 RFFlanged ASME Class 300 RFButt-weld ends

PN 40Material 1.0460 (P250GH / C 22.8)

Service pressure PMA [bar] 40.0 40.0 35.0 28.0 21.0Inlet temperature TMA [°C] 20 100 200 300 400

Butt-weld ends / flanges

Connections DN1 DN2 D1 H H1 H2 H3 L1 L2 M4 15-25 40/50 125 305 310 76 54 365 375 168 15-25 40/50 125 305 310 76 54 365 375 16

12 15-25 40/50 125 305 310 76 54 365 375 16

Dimensions and WeightsNº of lateral All connections Weight All connections Weightconnections Butt-weld ends (without steam traps) Flanges (without steam traps)

A B C L approx. kg A B C L approx. kg4 60 160 280 150 20 107 160 374 230 318 60 160 600 150 41 107 160 694 230 57

12 60 160 920 150 62 107 160 1014 230 83

EN DINV 21.9/K V 21.9 P250GH / 1.0460 C 22.8 / 1.0460

Shut-off valvesBody P250GH / 1.0460 C 22.8 / 1.0460Seat 1.4370 1.4370Disk 1.4021 1.4021Bellows 1.4571 1.4571Bonnet P250GH / 1.0460 C 22.8 / 1.0460Body gasket Graphite / CrNi Graphite / CrNiHand wheel EN-JL 1030 / EN GJL-200 GG 20

A

B

C

DN2

A2

GESTRA Gravity Circulation Checks and DISCO Non-Return ValvesGESTRA DISCOCHECK Dual-Plate Check Valves and DISCO Swing Check Valves

DISCO Non-Return Valves

Gravity Circulation Checks and DISCO Non-Return Valves for sanitation applications and hvac systems.

Type SBO 11, Type SBO 21, Type SBO 31 ............................................................ 29Type RK 70, Type RK 71 .................................................................................. 30 – 31 Type MB 14 ...................................................................................................... 30 – 31

DISCO Non-Return Valves for industrial applications and hvac systems.

Type RK 41, Type RK 44, Type RK 44 S .......................................................... 32 – 33 Type RK 76 ...................................................................................................... 32 – 33 Type RK 86 ...................................................................................................... 34 – 35 Type RK 86 A .................................................................................................. 34 – 35

DISCO Non-Return Valves for special applications.

Type RK 16 A, Type RK 16C ............................................................................ 36 – 37 Type RK 49 ...................................................................................................... 36 – 37Type RK 29 A .................................................................................................. 38 – 39

DISCO Check Valves

DISCOCHECK Dual-Plate Check Valves BB, DIN design1)Wafer-type valves DN 50 – 1200 mm (2 – 48"), PN 6 – 160 ............................ 40 – 43

DISCO Swing Check Valves CB Wafer-type valves DN 50 – 300 mm (2 – 12"), PN 6 – 40 ................................ 44 – 45

Swing Check Valves WB Wafer-type valves DN 50 – 300 mm (2 – 12"), PN 10/16 ................................ 46 – 47

NAF-Check ValvesWafer-type valves DN 40 – 1000 mm (11/2 – 40"), PN 10 – 100 ...................... 48 – 49

1) DISCOCHECK Dual-Plate Check Valves BB also available in ASME design.

Page

Tailored to Your Needs.

Measuring up to market needs has been the GESTRA philosophy for decades. Backed by many years‘ experience in the design andmanufacture of non-return (check)valves, we offer our customerssuperior solutions for their specificrequirements.Whether your are looking foreconomical non-return valves for hvac services, special non-return valves for chemical applications ordual-plate check valves with(adjustable) dampers – we guaranteeperformance without compromise.

GESTRA – always one step ahead.

These are just some examples ofcustomer requirements which are metby our new DISCO non-return valveRK 86.

“We need non-return valves that conformto as many international standards forend connections as possible.”

“The flange design should preventsquashing of the gasket duringinstallation and guarantee leakproofsealing.”

“Non-return valves should featuredependable bonding connections.”

GESTRA DISCO Non-Return (Check) Valves

A2

29

Downstream of circulating pumps in heating and hot water installations toprevent gravity circulation.

Pressure/Temperature Ratings / Material

Dimensions

➞ ➞ ➞

➞

Pressure Drop ChartsSBO 11, SBO 21 SBO 31

Curve 1: SBO 21 DN 1"Curve 2: SBO 11 DN 1"

Curve 1: SBO 31 DN 3/4"Curve 2: SBO 31 DN 1"

Differential pressures at zero volume flow.

SBO 11

SBO 21

SBO 31

Outlet: Screwed maleInlet: Screwed female

LL

L

Opening Pressures

Application

Outlet: Screwed maleInlet: Union nut

Outlet: Screwed femaleInlet: Union nut

Max. service Max. service Materialspressure [bar] temperature [°C] Body Valve cone

6 1301) Brass (CW614N) PPO

1) Max. service temperature at atmospheric pressure

Curve 3: SBO 21 DN 11/4"Curve 4: SBO 11 DN 11/4"

Curve 3: SBO 31 DN 11/4"

Gravity Circulation Checks SBOPN 6

Type DN Opening pressure [mbar]Direction of flow

with-out with spring

spring

SBO 111"

1 7 6 611/4"

SBO 211"

1 7 6 511/4"3/4"

SBO 31 1" 2 9 7 511/4"

Partial opening / instable range Full opening / stable range Partial opening / instable range Full opening / stable range

Pressure drop Δp [bar]Pressure drop Δp [bar]

Volu

me

flow

Vw

Volu

me

flow

Vw

Type SBO 11 SBO 21 SBO 31

Size DN 1" 11/4" 1" 11/4" 3/4" 1" 11/4"

L [mm] 66 82 57 70 39 40 45

Connections Inlet2) G 11/2 G 2 G 11/2 G 2G 11/4 G 11/2 G 2(BSP thread) Outlet G 1 G 11/4 G 1 G 11/4

2) SBO 11 and SBO 21: Thread of union nut

30

Application

Body Material

Dimensions


RK 70 / RK 71DN 15 – 100 mm

RK 70DN 125 – 200 mm

MB 14

L

L

Ø D

Ø D

L

DN [mm] 15 20 25 32 40 50 65 80 100 125 150 200

[in] 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8

L [mm] 16 19 22 28 31,5 40 46 50 60 90 106 140

RK 70 D [mm] 40 47 56 72 82 95 115 132 152 184 209 264

RK 71 D [mm] 40 47 56 72 82 95 115 132 152 – – –

L [mm] 49 49 61 61 72 72 – – – – – –

MB 14 D [mm] 42 42 62 62 83 83 – – – – – –

A. F. [mm] 30 30 46 46 65 65 – – – – – –

DISCO® Non-Return Valves RK – PN 6 to PN 16Screwed Non-Return Valves MB – PN 16

Type PN

For liquids, especially suited for heating and hot-water RK 70 6 installations. Application as gravity circulation check and

check valve.

RK 71 16For liquids, gases, vapours. Application as gravity

MB 14 16circulation check, vacuum breaker, breather, foot valve, pressure-relief valve or pressure-maintaining valve

Type Nominal sizes DN EN reference ASTM equivalent1)

RK 70 Body 15 – 100 mm Brass (CW617N) Brass

Valve disk Plastic PPE –

Body 125 – 200 mm Grey cast iron (EN-JL 1040) A126 Class A

Plug Plastic Polyamid 6 –

RK 71 Body 15 – 100 mm Brass (CW617N) Brass

Valve disk 1.4571 AISI 316 Ti

MB 14 Body 15 – 50 mm Brass (CW614N) Brass


1) ASTM material similar to EN material.Observe different physical and chemical properties!

Type PN Nominal sizes DN PMA / TMA / [bar] / [°C]

RK 70 6 15 – 100 mm 6 / -30 1.5 / 100 0.5 / 130

6 125 – 200 mm 6 / -10 1.5 / 100 0.5 / 130

RK 71 16 15 – 100 mm 16 / -60 14 / 200 13 / 250

MB 14 16 G 1/2 – G 2 16 / -60 14 / 200 13 / 250

RK Designs

Type Seat Springmetal-to EPDM FPM PTFE without special Nimonic

metal spring spring spring

RK 70 (Plastic) – – – – – – UseRK 71 X Use RK 41 Use RK 41 – RK 86

MB 14 X – – – – – – –

X : standard– : not available

Earthingconnection

UseRK 86

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31

DISCO® Non-Return Valves RK – PN 6 to PN 16Screwed Non-Return Valves MB – PN 16

➞ ➞ ➞

➞


Opening Pressures

RK 71*)

➞ ➞ ➞

➞

RK 70*)

Pressure Drop ChartsThe curves given in the chart are validfor water at 20 °C. To read the pressuredrop for other fluids the equivalentwater volume flowrate must becalculated and used in the graph.

The values indicated in the chart areapplicable to spring-loaded valves withhorizontal flow. With vertical flowinsignificant deviations occur onlywithin the range of partial opening.

V·W = V· ·

V·W = Equivalent water volume flowin [l/s] or [m3/h]

ρ = Density of fluid(operating condition) in [kg/m3]

V· = Volume of fluid (operatingcondition) in [l/s] or [m3/h]

ρ1000

DN Opening pressures [mbar]

Direction of flowwithout with springspring

15 0.4 7.8 7.4 7

20 0.4 7.8 7.4 7

25 0.4 7.8 7.4 7

32 0.5 9 8.5 8

40 0.5 9.5 9 8.5

50 0.6 9.7 9.1 8.5

65 0.7 10.4 9.7 9

80 0.8 11.6 10.8 10

100 0.9 12.3 11.4 10.5

125 2.0 9.0 7.0 5.0

150 2.5 10.0 7.5 5.0

200 2.5 10.0 7.5 5.0*)

*) RK 70, 71 are not available with special spring or without spring



15 2.5 10 7.5 5

20 2.5 10 7.5 5

25 2.5 10 7.5 5

32 3.5 12 8.5 5

40 4.0 13 9 5

50 4.5 14 9.5 5

65 5.0 15 10 5

80 5.5 16 10.5 5

100 6.5 18 11.5 5

When selecting valve please consider:Partial opening/ Full opening/instable range stable range


RK 70, RK 71

MB 14

Pressure drop Δp

Volu

me

flow

Vw

Volu

me

flow

Vw

Pressure drop Δp

32

Type Seat Springsmetal-to- EPDM FPM PTFE without special Nimonic

metal (–40 up to (–25 up to (–190 up to spring spring spring150°C)1) 200°C)1) 250°C)1)

RK 41 X O O – O O –

RK 44 X O O – O O – UseRK 44S X O O – O – – RK 86

RK 76 X O O O O O O

1) Observe pressure/temp. ratings of the equipment X : standard O : optional – : not available

DISCO® Non-Return Valves RKPN 6 to PN 16

Application

Dimensions

Pressure/Temperature Ratings with metal-to-metal seat

RK 41/ RK 44 / RK 44SDN 15 – 100 mm

RK 41 / RK 44 / RK 44SDN 125 – 200 mm

Ø D

L

L

Ø D


RK 4116 15 – 100 mm 16 / -60 14 / 200 13 / 250

16 125 – 200 mm 16 / -10 13 / 200 13 / 300

RK 4416 15 – 100 mm 16 / -200 14 / 200 13 / 250

16 125 – 200 mm 16 / -10 14 / 200 13 / 250

RK 44S 16 15 – 200 mm 16 / -200 16 / 90 16 / 90

RK 76 40 / Cl 300 15 – 100 mm 49.6 / -10 35.8 / 200 31.6 / 300

Type PN

RK 41 16 For liquids, gases, vapours. Application as gravity circulationRK 44 16 check, vacuum breaker, breather, foot valve, pressure-maintaining valve,RK 44S 16 check valve. RK 76 40 RK 41 especially suited for heating installations, RK 44 and RK 44S

for sea water and drinking water, RK 76 for industrial applications

DN [mm] 15 20 25 32 40 50 65 80 100 125 150 200

[in] 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8

L [mm] 16 19 22 28 31,5 40 46 50 60 90 106 140

RK 41 D [mm] 40 47 56 72 82 95 115 132 152 184 209 264

RK 44 D [mm] 42 49 58 74 84 97 117 132 152 184 209 264

RK 44S D [mm] 42 49 58 74 84 97 117 132 152 184 209 264

RK 76 D [mm] 45 55 65 75 85 98 118 134 154 – – –

RK 76DN 15 – 100 mm

Designs

Earthingconnection

Ø D

Body Material

Type Nominal sizes (DN) DIN reference ASTM equivalent1)

RK 41 Body 15 – 100 mm Special brass (CW710R) Special Brass


Body 125 – 200 mm Grey cast iron (EN-JL 1040) A126 Class B

Plug 1.4006 A182 F6

RK 44 Body 15 – 100 mm Bronze (CC480 K-GS) B584 C90500


Body 125 – 200 mm Grey cast iron (EN-JL 1040) A126 Class B

Plug Bronze (CC480 K-GS) B584 C90500

RK 44S Body 15 – 100 mm Bronze (CC480 K-GS) B584 C90500

Valve disk Bronze (CW352H) –

Body 125 – 200 mm Bronze (CC483 K-GC) B505 C90700

Plug Bronze (CC480 K-GS) B584 C90500

RK 76 Body 15 – 100 mm 1.4107 A217-CA15



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33

DISCO® Non-Return Valves RK – PN 6 to PN 40Short overall length according to DIN EN 558-1, table 11, series 49 (= DIN 3202, part 3, series K4)

➞ ➞ ➞

➞


Opening Pressures

RK 41, RK 44, RK 76



RK 41, RK 44, RK 44S RK 76



15 2.5 10 7.5 5

20 2.5 10 7.5 5

25 2.5 10 7.5 5

32 3.5 12 8.5 5

40 4.0 13 9 5

50 4.5 14 9.5 5

65 5.0 15 10 5

80 5.5 16 10.5 5

100 6.5 18 11.5 5

125 12.5 35 22.5 10

150 14.0 38 24.0 10

200 13.5 37 23.5 10

➞ ➞ ➞

➞

RK 44SDN Opening pressures [mbar]


15 2.5 25 22.5 20

20 2.5 25 22.5 20

25 2.5 25 22.5 20

32 3.5 27 23.5 20

40 4.0 28 24.0 20

50 4.5 29 24.5 20

65 5.0 30 25.0 20

80 5.5 31 25.5 20

100 6.5 33 26.5 20

125 12.5 35 22.5 10

150 14.0 38 24.0 10

200 13.5 37 23.5 10

V·W = V· ·




ρ1000



RK 41, RK 44 DN 125-200RK 44S DN 15-200

Volu

me

flow

V· W

Pressure drop Δp

34


Application

Dimensions

RK 86 / RK 86 ADN 15 – 100 mm

Ø D

min

.

L

RK 86 and RK 86 A – Our Robust All-Rounder

RK 86 / RK 86 ADN 125 – 200 mm

Ø D

L

Ø D

max

.

Nominal sizes[mm] 15 20 25 32 40 50 65 80 100 125 150 200

[Inch] 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8

OverallL 16 19 22 28 31,5 40 46 50 60 90 106 140

dimensions ∅ D min 44 53 64 73 83 96 110 128 151 – – –[mm]

∅ D max 67 76 82 93 104 118 136 158 186 – – –

Class 125/150 – – – – – – – – – 194 220 275

PN 10/16 – – – – – – – – – 194 220 275

∅∅ D PN 25 – – – – – – – – – 194 226 286

PN 40 – – – – – – – – – 194 226 293

Class 300 – – – – – – – – – 216 251 308

Weight [kg] 0.27 0.38 0.52 0.8 1.12 1.78 2.43 3.37 5.34 11 14 25


Type PN

RK 86 40/class 300

For liquids, gases, vapours. Application as gravity

RK 86 A 40/class 300

circulations check, vacuum breaker, breather, foot valve, pressure-maintaining valve, check valve. RK 86 A especially suited for low temperatures, aggressive fluids, boiler feedwater lines, and other industrial applications.

Designs


metal (–40 up to (–25 up to (–190 up to spring spring spring2)150°C)1) 200°C)1) 250°C)1)

RK 86 X O O O O O O X

RK 86A X O O O O O O X

1) Observe pressure/temp. ratings of the equipment2) Required for temperatures above 300 °C

X : standardO : optional

Earthingconnection

D min.

D max.

RK 86 / RK 86 ADN 15 – 100 mm

Body Material

Type Nominal sizes DN EN reference ASTM equivalent 1)

RK 86 Body 15 – 100 mm Chromium steel, 1.4317 A 743-CA6-NM


Body 125 – 200 mm GP240GH (1.0619) A 216 WCB

Plug 1.4006 A182 F6

RK 86A Body 15 – 200 mm 1.4408 A 351 CF 8M

Valve disk/plug 1.4571 AISI 316 Ti



40/class 300 15 – 100 51 / -10 43.9 / 200 36.9 / 350

RK 86 40/class 300 125 – 200 51 / -10 43.9 / 200 34.5 / 400

RK 86 A 40/class 300 15 – 200 49.6 / -200 35.8 / 200 24 / 550

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35

DISCO® Non-Return Valves RKPN 6 to PN 40

➞ ➞ ➞

➞


Opening Pressures

RK 86, RK 86 A



V·W = V· ·




ρ1000


[mm] Direction of flowwithout with springspring

15 2.5 10 7.5 5

20 2.5 10 7.5 5

25 2.5 10 7.5 5

32 3.5 12 8.5 5

40 4.0 13 9 5

50 4.5 14 9.5 5

65 5.0 15 10 5

80 5.5 16 10.5 5

100 6.5 18 11.5 5

125 12.5 35 22.5 10

150 14.0 38 24.0 10

200 13.5 37 23.5 10

RK 86, 86AWhen selecting valve please consider:Partial opening/ Full opening/instable range stable range

(DN 125-200)

Volu

me

flow

V· W

Pressure drop Δp

36

Application

RK 16 A, RK 16 C

RK 49, DN 15 – 65 mm

Ø D

Ø D

Ø D

L

L

L

RK 49, DN 80 – 200 mm


Dimensions

DN [mm] 15 20 25 32 40 50 65 80 100 125 150 200

[in] 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8

L [mm] 25 31,5 35,5 40 45 56 63 71 80 110 125 160

RK 16 A D [mm] 52 63 72 81 93 108 128 1431631)

– – –1692)

RK 16 C D [mm] 52 63 72 81 93 108 128 1431631)

– – –1692)

RK 49 D [mm] 54 63 74 84 95 110 130 147 173 209 245 301

1) PN 10/16 2) PN 25/40

Body Material

Type PN

For liquids, gases, vapours. Application as check valve,

RK 16 A 40/class 300 breather, foot valve, pressure-relief valve or pressure-

RK 16 C 40/class 300 maintaining valve.

RK 49 160 RK 16 A and RK 16 C for aggressive fluids and lowtemperaturesRK 49 for high pressures and temperatures

Type Nominal sizes DN EN reference ASTM equivalent 1)

RK 16A Body 15 – 100 mm 1.4571 AISI 316 Ti


RK 16C Body 15 – 100 mm 2.4610 Hastelloy C

Valve disk 2.4610 Hastelloy C

RK 49 Body 15 – 65 mm 1.4581 A351 CF8

Valve disk 1.4986 –

Body 80 – 200 mm 1.7357 A217 WC6

Plug 1.4922 –


Designs

Type Seat Springmetal- EPDM FPM PTFE without special Nimonic-

to-metal (–40 up to (–25 up to (–190 up to spring spring spring2)150°C)1) 200°C)1) 250°C)1)

RK 16A X O O O O O O O

RK 16C X – – – O – – O

RK 49 X – – – O – X O

1) Observe pressure/temp. ratings of the equipment2) Required for temperatures above 300 °C.

Earthingconnection



RK 16 A 40/Class 300 15 – 100 49.6 / -200 35.8 / 200 24 / 550

RK 16 C 40/Class 300 15 – 100 49.6 / -200 35.8 / 200 29.3 / 400

RK 49 160 15 – 65 160 / -10 136.5 / 200 110.8 / 550

80 – 200 160 / -10 160 / 200 55.3 / 530

X : standardO : optional– : not available

A2

37

➞ ➞ ➞

➞

RK 49


➞ ➞ ➞

➞Differential pressures at zero volume flow.

Opening Pressures

Opening Pressures

RK 16 C

Pressure Drop ChartsThe curves given in the chart are valid forwater at 20 °C. To read the pressure drop forother fluids the equivalent water volumeflowrate must be calculated and used in thegraph.

The values indicated in the chart are applica-ble to spring-loaded valves with horizontalflow. With vertical flow insignificant deviationsoccur only within the range of partial opening.

V·W = V· ·




ρ1000

DN Opening pressures [mbar]Direction of flow

without with springspring

15 2.5 25 22.5 20

20 2.5 25 22.5 20

25 2.5 25 22.5 20

32 3.5 27 23.5 20

40 4.0 28 24.0 20

50 4.5 29 24.5 20

65 5.0 30 25.0 20

80 5.5 31 25.5 20

100 6.5 33 26.5 20

➞ ➞ ➞

➞


Opening Pressures

RK 16 ADN Opening pressures [mbar]


15 2.5 10 7.5 5

20 2.5 10 7.5 5

25 2.5 10 7.5 5

32 3.5 12 8.5 5

40 4.0 13 9 5

50 4.5 14 9.5 5

65 5.0 15 10 5

80 5.5 16 10.5 5

100 6.5 18 11.5 5




15 16.5 73 56.5 40

20 17.5 74 57.0 40

25 18.0 76 58.0 40

32 18.0 76 58.0 40

40 19.5 79 59.5 40

50 22.0 84 62.0 40

65 23.0 87 63.0 40

80 17.5 75 57.5 40

100 20.0 80 60.0 40

125 23.0 86 63.0 40

150 24.0 88 64.0 40

200 29.0 98 69.0 40

RK 16 A, RK 16 C (dash lines apply to RK 16 A)


RK 49When selecting valve please consider:Partial opening/ Full opening/instable range stable range

(RK 16C)

Volu

me

flow

V· W

Pressure drop Δp

Volu

me

flow

V· W

Pressure drop Δp

38


metal (–40 up to (–25 up to (–190 up to spring spring spring2)150°C)1) 200°C)1) 250°C)1)

RK 29A X – – – O – X O

1) Observe pressure/temp. ratings of the equipment2) Required for temperatures above 300 °C.

Pressure/Temp. Ratings acc. EN 1092-1, material group 15E0


Pressure/Temp. Ratings acc. ASME B 16.5, material group 2.4Type RK 29A Max. service pressure [bar] at temperature [°C]Pressure rating – 218 200 500

class 400 66.2 51.1 37.6class 600 99.3 76.6 56.6class 900 148.9 114.9 84.7

Tightness of seat in accordance with DIN 3230, part 3, leakage rate BN 2, BO 3.

Sealing surfaces machined according to EN 1092-1, form B2, ASME B 16.5 RF smooth finish (63-125 μin).

Other designs available on request.

Dimensions RK 29A

Type RK 29A Max. service pressure [bar] at temperature [°C]Pressure rating – 200 200 500

PN 63 63 53.8 44.2PN 100 100 85.3 70.2PN 160 160 136.5 112.4

PN 63 PN 100 PN 160 class 400 class 600 class 900DN L D L D L D L D L D L D15 35 63 35 63 35 63 35 54 35 54 35 6325 40 84 40 84 40 84 40 73 40 73 40 7940 56 105 56 105 56 105 56 95 56 95 56 9850 56 115 56 121 56 121 56 111 56 111 56 142.580 71 149 71 156 71 156 71 149 71 149 71 168

100 80 176 80 183 80 183 80 176 80 193.5 80 205150 125 250 125 260 125 260 125 247.5 125 266.5 125 288.5200 160 312 160 327 160 327 160 304.5 160 320.5 160 358.5

PN 250 – 400 see data sheet. Cl 1500 and 2500 see data sheet.

RK 29 A, DN 15-40 mmPN 63/100/160/250/320/400

ASME class 400/600/900/1500/2500

RK 29A, DN 50-200 mmPN 250/320/400

ASME Class 1500/2500

L

∅ D

RK 29A, DN 50-200 mmPN 63/100/160

ASME Class 400/600/900

L

∅ D

Designs

Earthingconnection


Application

Materials

Type PN

RK 29 A63 – 400

For large pressure ratings and special tasks.Cl 400 – 2500

Type Nominal sizes DN EN reference ASTM equivalent1)

RK 29A Body 15 – 200 mm 1.4571 AISI 316 Ti

Plug 1.4571 AISI 316 Ti


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39


The values indicated in the chart areapplicable to spring-loaded valves withhorizontal flow. With vertical flowinsignificant deviations occur only withinthe range of partial opening.

V·W = V· ·




ρ1000

➞ ➞ ➞

➞


Opening Pressures

RK 29 A

RK 29A

Pressure drop Δp

Volu

me

flow

V· w

DN Opening pressures [mbar]Direction of flow

without spring with spring with spring with spring

– PN 160 – PN 400 – PN 160 – PN 400 – PN 160 – PN 400 – PN 400– Cl 900 – Cl 2500 – Cl 900 – Cl 2500 – Cl 900 – Cl 2500 – Cl 2500

15 6 6 22 22 16 16 10

25 8 8 26 26 18 18 10

40 10 10 30 30 20 20 10

50 10 10 30 30 20 20 10

80 11 13 32 36 21 23 10

100 12 24 34 58 22 34 10

150 18 – 46 – 28 – 101)

200 21 – 52 – 31 – 101)

1) only for PN 63-400


When selecting valve please consider:Partial opening/ instable range Full opening / stable range

40

For liquids, gases, vapours. In heating, air-conditioning, water-supply and coolinginstallations, steam and condensate systems, oil pipelines and natural gas lines. For use with sea water, in sewage works, downstream of fans and compressors. For drinking water: with lining, and for sea water with rubber lining. With adjustable dampers for installations with waterhammer problems. Metal-to-metal or soft seat (EPDM, FPM).

DISCOCHECK® Dual-Plate Check Valves BB DIN design DN 501) – 1200 mm, PN 6 – 1602)Short overall length according to DIN EN 558-1, table 11, series 16 (= DIN 3202, part 3, series K3)

1) DN 50, 65 and 80 only available as BB . . . “A” (stainless steel).2) If PN > 40 and DN > 500 mm please ask for corresponding data sheets.

Materials


L

A

Ø D

Ø D

80°

80°

L

A

DN 50 – 125 mm

DN 150 – 1200 mm

Application

Design Part designationNominal size EN ASTM

DN reference equivalent4)

Grey cast iron Body 150 – 1200 EN-JL 1040 A 126 Class B(BB ... G) Dual plate 150 – 1200 EN-JS 1030 A 536 60-40-18

Carbon steel Body 100 + 125 1.0460 A 105(BB ... C) Body from 150 1.0619 A 216 WCB

Dual plate 100 + 125 1.4006 A 182 F6

Dual plate from 150 1.0619 A 216 WCB

Stainless Body 50 – 125 1.4404 A 182 F 316 Lsteel

Body from 150 1.4408 A 351 CF 8 M

Dual plate 50 – 125 1.4404 A 182 F 316 L

Dual plate from 150 1.4408 A 351 CF 8 M

4) Physical and chemical properties comply with EN grade.

Max. service pressure [bar]Design Type PN at temperature [°C]5)

20 100 150 200 250 300 350 400 450 500 550

BB 11 G / 21 G 6 6 6 5.4 4.8 4.2 3.6 – – – – –

12 G / 22 G 10 10 10 9.0 8.0 7.0 6.0 – – – – –

14 G / 24 G 16 16 16 14.4 12.8 11.2 9.6 – – – – –

BB 12 C / 22 C 10 10 10 10 9.6 8.9 7.6 7.1 6.7 6.4 – –

14 C / 24 C 16 16 16 16 15.3 14.2 12.1 11.4 10.7 10.3 – –

15 C / 25 C 25 25 25 25 23.9 22.2 18.9 17.8 16.7 16.1 – –

16 C / 26 C 40 40 40 40 38.2 35.6 30.2 28.4 26.7 25.8 – –

17 C 63 63 58.5 54.6 47.6 44.8 40.6 37.8 36.4 – – –

18 C 100 100 93.3 86.7 75.6 71.1 64.4 60 57.8 – – –

19 C 160 160 149.3 138.7 121 113.8 103 96 92.5 – – –

BB 12 A / 22 A 10 10 9.8 9.1 8.5 8.1 7.8 7.5 7.3 7.2 7 6.9

14 A / 24 A 16 16 15.6 14.6 13.7 13 12.4 12 11.7 11.4 11.2 11.1

15 A / 25 A 25 25 24.4 22.8 21.3 20.3 19.4 18.8 18.2 17.9 17.6 17.3

16 A / 26 A 40 40 39.1 36.4 34.1 32.5 31.1 30 29.2 28.6 28.1 27.7

17 A 63 63 61.6 57.4 53.8 51.2 49 47.3 45.9 45.1 44.2 43.7

18 A 100 100 93.3 86.7 82.2 77.8 74.2 71.6 69.3 67.6 66.2 63.1

19 A 160 160 149.3 138.7 131.5 124.5 118.7114.6 110.9 108.2 105.9 101.0

5) For temperatures above +300 °C special springs of Inconel X 750 are required.

BB 12A-18A DN 50 – 125 applicable up to max. 500 °C.

Stainless steeldown to –10 5 °Cat nominal pressure

Grey cast irondown to –10 °Cat nominal pressure

Carbon steeldown to –10 °Cat nominal pressure

A2

41

DISCOCHECK® Dual-Plate Check Valves BB DIN design DN 50 – 1200 mm, PN 6 – 1601)

Pressure Drop ChartThe chart is valid for water at 20 °C; for other fluids, the equivalent watervolume flowrate must be calculatedand used in the chart.

The values indicated in the chart areapplicable to valves with 7 mbarsprings with horizontal flow. Withvertical flow deviations occur onlywithin the range of partial opening.

The dashed lines in the chart are validfor valves with 2 mbar springs withhorizontal flow.

The chart and the flow characteristicsapply to values up to PN 40. For valveswith higher pressure ratings (PN) theloss coefficients (zeta values) and thepressure drops are increased byapprox. 20 %. The kvs values arecorrespondingly reduced.

V·W = V· ·



V· = Volume flow of fluid(operating condition) in [l/s] or [m3/h]

ρ1000

1) If PN > 40 and DN > 500 mm ask for corresponding data sheets.

BB Designs

Type Seat Liningmetal-to- EPDM FPM NBR PTFE2) Plastic4) Rubber5)

metal (–40 up to (–25 up to (–30 up to (–25 up to150°C)1) 200°C)1) 110°C)1) 200°C)1)

BB.....G O X O O – O O

BB.....C X O O O O3) O6) O6)

BB.....A X O O O O3) – –

1) Observe pressure / temp. ratings of equipment2) Cover FPM ring with PTFE 3) From DN 150. Not possible for smaller sizes.4) Inside and outside of body lined with plastic, seat made of EPDM. Internals either of bronze or

of stainless steel. Temp. range –10 °C up to 70 °C.5) Inside of body lined with rubber, seat made of EPDM. Internals either of bronze or of stainless steel.

Temp. range –10 °C up to 90 °C.6) From DN 150. For smaller sizes use DN “BB...A”


Opening Pressures


with upward flowwithout with springspring 7 WA

7 WAI 2 WA 5 VO

50 6 13 8 17

65 6 13 8 17

80 7 14 9 19

100 7 14 9 19

125 10 17 12 25

150 11 (15) 18 (22) 13 (17) 27 (35)

200 12 (18) 19 (25) 14 (20) 29 (41)

250 14 (18) 21 (25) 16 (20) 33 (41)

300 15 (25) 22 (32) 17 (27) 35 (55)

350 17 (25) 24 (32) 19 (27) 39 (55)

400 19 (25) 26 (32) 21 (27) 43 (55)

450 22 29 24 49

500 23 (28) 30 (35) 25 (30) 51 (61)

Values indicated in brackets apply for BB17/18/19.

Type Damper7) Earthing Drain without Springsconnection plug spring Inconel spring8) 2 WA10) 7 WA11) 5 VO12)

BB.....G O – O O – O X O

BB.....C O O O9) O O O X O

BB.....A – O O9) O O O X O

7) From DN 200 up to DN 800.Max. temperature rating 110 °C.

8) Inconel X 750 (Required for temperatures above 300 °C). Opening pressure 7 mbar (spring 7 WAI).9) From DN 15010) Spring for 2 mbar opening pressure with horizontal installation.11) Spring for 7 mbar opening pressure (standard) with horizontal installation.12) Spring for 5 mbar opening pressure with vertical installation and downward flow.

X : standard O : optional – : not available

X : standard O : optional – : not available

42

Dimensions and Weights


1) If PN > 40 and DN > 500 mm ask for corresponding data sheets.2) Weights rated for cast steel grade GP 240 GH (GS-C 25).3) DN 50, 65 and 80 only available as BB . . . “A” (stainless steel).

DN PN Dimensions [mm] WeightD L A [kg]2)

6 319 33

10 330 35

250 16 330 114 87 35

25 343 38

40 355 41

6 375 44

10 380 45

300 16 386 114 110 47

25 403 51

40 420 55

6 425 ,562.5

10 440 67

350 16 446 127 120 69

25 460 73

40 477 79

6 475 ,580.5

10 491 86

400 16 498 140 142 88

25 517 95

40 549 1075

6 530 12555

10 541 13055450 16 558 152 163 13855

40 574 14355

6 580 14455

10 596 15255

500 16 620 152 181 16455

25 627 16855

40 631 17055

DN PN Dimensions [mm] WeightD L A [kg]2)

10 109 2.5

16 109 2.5503) 25 109 43 8 2.5

40 109 2.5

10 129 4

16 129 4653) 25 129 46 11 4

40 129 4

10 144 6

16 144 6803) 25 144 64 12 6

40 144 6

10 164 7

16 164 7100 25 171 64 19 ,5 7.5

40 171 ,5 7.5

10 194 12

16 194 12125 25 196 70 28 12

40 196 12

6 209 12

10 220 ,513.5

150 16 220 76 40 ,513.5

25 226 14

40 226 14

6 264 ,518.5

10 275 20

200 16 275 89 64 20

25 286 22

40 293 23

Type Code

Valve Type

Series

1 – DN 50 – 125 mm and from DN 450 mm as well as from PN 632 – DN 150 – 400 mm up to PN 40

Pressure rating

1 – PN 6 (only grey cast iron)2 – PN 104 – PN 165 – PN 256 – PN 40

Body material

G – Grey cast ironC – SteelA – Austenitic steel

Nominal sizeDN 50 – 1200

Seat

HD – metal-to-metalEPDMFPMPTFE

Springs/Opening pressures

7 WA – Spring for 7 mbar withhorizontal installation7 WAI – Inconel spring for 7 mbar with horizontal installation2 WA – Spring for 2 mbar with horizontal installation5 VO – Spring for 5 mbar with downward flow

Typical example: BB 24 C 150 FPM 7 WAExplanatory note: Dual-plate check valve

BB 24, PN 16, made ofcast steel type GS-C 25,DN 150 mm with FPM gasket and spring (7 mbar) for horizontal installation.

BB

2

4

C

150

FPM

7 WA

A2

43


Design with plastic lining: for drinking water and sea water. Design with rubber lining: for sea water. Design with dampers: to solve waterhammer problems. Metal-to-metal or elastic seat (EPDM, FPM)

1) For pressure ratings > PN 40 and sizes > DN 500 please ask for corresponding datasheets.

Application

BB with patented adjustable dampers, DN 200 – 800.

BB with Lining

To solve waterhammer problems in pipelines carrying liquids.To evaluate possible waterhammer problems please ask for our questionnaire.

Application

BB with Dampers

BB with lining from DN 150

Hard-rubber Plasticlining lining

Dual plates, hinge pins and springs are not lined. Dual plates standard with O-rings of EPDM or on requestwith metal seating surface.

Temperature Limits

Plastic lining –10°C up to 70°C

Rubber lining –10°C up to 90°C


Size DN[mm] 200 250 300 350 400 500 600 700 800

[inch] 8 10 12 14 16 20 24 28 32

Max. service pressure [bar] 16 16 13 9 13 9 5 8 6

Max. service temperature [°C] 110

Max. admissible pressure atline leading to the valve(pump switched off) [bar] 0.5

44

DISCO® Swing Check Valves CBDN 50 – 300 mm, PN 6 – 40

a

L

Ø D

Ø D

d

70°

L

Application

Materials

Weights and Dimensions


CB 24 S, CB 26, CB 26 A DN 50 – 300 mm

CB 14, DN 50 – 200 mm

CB 14, DN 250 – 300 mm

60°

d

a

Ø D

L

Type Part designationNominal sizes

EN referenceASTM1)

DN equivalent

CB 14 Body 50 – 300 mm1.0038 A 284 B

galvanized galvanized

Flap 50 – 300 mm NBR NBR

CB 24 SBody

50 – 100 mm Bronze (CC 483K-GS) B 505 C 90 700

125 – 300 mm Bronze (CC 332G) B 148 Alloy 952

Flap 50 – 300 mm Bronze (CC 332G) B 148 Alloy 952

CB 26Body

50 – 200 mm 1.0460 A 105

250 – 300 mm 1.0038 A 284 B

50 – 80 mm 1.4581 A 351 CF 8 MC

Flap 100 – 300 mm GGG-40.3 (EN-JS 1025) –

CB 26 ABody

50 – 200 mm 1.4571 AISI 316 TI

250 – 300 mm 1.4581 A 351 CF 8 MCFlap 50 – 300 mm 1.4581 A 351 CF 8 MC

1) Physical and chemical properties comply with EN grade.

Nominal size Dimensions [mm] Weight [kg]DN CB 14 CB 24 S, CB 26, CB 26 A

CB14 CB 24 SCB 26

[mm] [in] D L a d6) D L a d6) CB 26 A50 2 98 14 45 47 98 17 40 50 0.7 0.9 0.965 21/2 118 14 60 64 118 20 50 64 1.0 1.4 1.480 3 132 14 70 75 132 24 58 75 1.4 2.0 2.0

100 4 154 14 90 98 154 27 72 99 1.5 3.1 3.1125 5 184 16 115 124 184 32 88 125 2.5 5.2 5.3150 6 209 16 145 148 209 32 112 144 3.3 6.7 6.9200 8 264 18 185 196 264 42 150 198 5.5 13.7 14.1250 10 319 35 220 242 319 47 182 244 11.2 22.9 23.6300 12 375 43 270 288 375 52 216 292 14.0 32.8 33.8

6) Minimum flange bore and inside pipe diameter.

Type Nominal sizes DN PN PMA / TMA / [bar] / [°C]CB 14 50 – 300 mm 16 16 / -10 6 / 60 4 / 80CB 24 S 50 – 300 mm 16 16 / -200 16 / 90 2)13 / 2502)CB 26 50 – 200 mm 40 40 / -10 30 / 200 20 / 350

250 – 300 mm 40 40 / -10 27 / 200 21 / 300CB 26 A 50 – 300 mm 40 40 / -10 32 / 200 26 / 4502) Max. pressure/temperature rating for CB 24 S without springs.

Type PNFor liquids, gases, vapours:

CB 14 16 CB 14 for water and compressed airCB 24 S 16 CB 24 S for sea water, drinking water, swimming-pool waterCB 26 40 For low temperaturesCB 26 A 40 CB 26 A for aggressive fluids, drinking water, or swimming-pool water

CB DesignsType Sitzdichtung Springs

metal-to- NBR EPDM FPM PTFE4) without specialmetal (–30 up to (–40 up to (–25 up to (–25 up to spring spring

110°C)3) 150°C)3) 200°C)3) 200°C)3)

CB 14 – X5) – – – X –CB 24S O X O O – O –CB 26 O – X O O O –CB 26A O – X O O O –3) Observe pressure / temp. ratings of the equipment 4) Cover FPM ring with PTFE 5) Flap made from NBR (Perbunan) Temp. range: –10 °C up to 80 °C


A2

45

Pressure Drop Charts

V·W = V· ·




ρ1000

The curves given in the chart are validfor water at 20 °C. To read the pressuredrop for other fluids the equivalentwater volume flowrate must becalculated and used in the graph.

The values indicated in the chart areapplicable to valves with horizontalflow. With vertical flow insignificantdeviations occur only within the rangeof partial openings.

CB 14

CB 24 S, CB 26, CB 26 A

DISCO® Swing Check Valves CBDN 50 – 300 mm, PN 6 – 40


Opening Pressures

➞ ➞ ➞

➞

➞ ➞

➞

Type DN Opening pressures [mm] [mbar]

Direction of flow

CB 14 50 – 150 8 0 1)200 – 300 15 0

Type DN Opening pressures [mm] [mbar]

Direction of flowwith- with springout

spring

CB 24 S 50 – 150 5 12 7

200 – 300 8 15 7

CB 26/ 50 – 80 5 12 7 1)

CB 26 A 100 – 150 11 18 7

200 – 300 18 25 7

1) Valves should not be used for down-ward flow applications, since the springwill not close the valve flap.

Volu

me

flow

V· W

Pressure drop Δp

Volu

me

flow

V· W

Pressure drop Δp

46

Swing Check Valves WB without spring, DN 50 – 300 mm, PN 10/16

WB 26, WB 26A, WB 24 SDN 50 – 300 mm

Materials


Weights and Dimensions

Ø D

Ø d

o

a

L

Application

WB 26 for liquids, gases and vapours

WB 26 A for aggressive fluids

WB 24 S for sea water

Installation in horizontal or vertical lines with upward flow.

Nominal pressure PN 16

Design with O-rings2) NBR

Max. service pressure [bar] 16

Related temperature [°C] 110

Min. temperature3) [°C] –10

2) O-rings in flap and valve faces made of NBR as standard.3) Minimum temperature for nominal pressure rating.

Nominal size DN Dimensions [mm] Weight5)[mm] [in] L ∅ D a ∅ do [kg]

50 2 14 109 35 32 0.95

65 21/2 14 129 48 40 1.2

80 3 14 144 60 54 1.6

100 4 18 164 78 70 2.5

125 5 18 195 98 92 3.5

150 6 20 220 116.5 112 4.7

200 8 22 275 160 154 7.6

250 10 26 330 200 200 13.2

300 12 32 380 235 240 20.5

5) The weight ratings apply for WB 26 and WB 26 A. WB 24 S reduced by approx. 5 %.

Type ASTM reference EN 1) equivalent

WB 26 Body and flap AISI 420 1.4034

galvanized galvanized

WB 26 A Body AISI 316 1.4401

Flap A 351 CF 8M 1.4408

WB 24 S Body and flap Aluminium bronze Aluminium bronze

O-rings NBR as standard

1) Physical and chemical properties comply with ASTM grade.

WB Design

Type Seat Springsmetal-to- NBR EPDM FPM PTFE without special

metal (–30 up to (–40 up to (–25 up to (–25 up to spring spring110°C)4) 150°C)4) 200°C)4) 200°C)4)

WB 24S O X O – X –

WB 26 O X O X –

WB 26A O X O X –

4) Observe pressure/temp. ratingsX : standardO : optional– : not available

UseCB 26

UseCB 26

UseCB 26A

UseCB 26A

UseCB 26

A2

47

Swing Check Valves WB without spring, DN 50 – 300 mm, PN 10/16

Pressure Drop ChartThe curves given in the chart are valid for water at 20 °C. To read the pressure drop for other fluids the equivalent watervolume flowrate must be calculated and used in the graph.

The values indicated in the chart are applicable to valves withhorizontal flow. With vertical flow insignificant deviationsoccur only within the range of partial openings.

V·W = V· ·




ρ1000

Opening PressuresOpening pressure zero when valve isinstalled in horizontal line.

Volu

me

flow

V· W

Pressure drop Δp

48

for liquids, gases, vapours, aggressive fluids andlow temperatures.

NAF-Check ValvesDN 40 – 1000 mm, PN 10 – 100

Application

Materials


Weight and Dimensions

NAF-CheckDN 40 – 1000 mm

Ø D

L

A Type PN DN Dimensions [mm] Weight[mm] D L A [kg]

40 84 33 15 1.2

50 92 43 5 1.7

65 108 46 12 1.7

80 128 64 16 3526 620 / 30

10 – 40 100 158 64 26 5528 620 / 30

125 180 70 36 7

150 203 76 51 9

200 263 89 71 16

250 315 114 90 28

300 370 114 125 41

350 432 127 146 48

400 480 140 175 65

526 520 / 30450 530 152 188 94

528 520 / 3010 – 25 500 592 152 228 115

600 692 178 282 192

700 804 229 301 270

800 911 241 374 402

1000 1124 300 458 782

65 125 46 12 3

80 138 64 16 4

100 158 64 26 5

125 188 70 39 9

526 822 / 32 40 – 100150 222 76 52 11

200 275 89 73 23

250 335 114 93 45

300 394 114 131 57

350 435 127 151 75

4004) 490 140 177 98

4) DN 400 mm only for PN 40/63.

Design Part Nominal size ASME / SS ENdesignation DN [mm] equivalent

Steel 40 + 50 SS 2343 1.4436

Body 65 – 250 ASTM A 351 CF 8M 1.4408

300 – 1000 ASTM A 216 WCC 1.0619

Flap40 + 50 SS 2395 1.4435

65 – 1000 SS 2387 1.4317

StainlessBody

40 + 50 SS 2343 1.4436steel 65 – 1000 ASTM A 351 CF 8M 1.4408

Flap 40 – 1000 SS 2324 1.4470

High-tempe- Body 65 – 400 ASTM A 217 WC 6 1.7557rature steel Flap 65 – 400 ASTM A 217 WC 6 1.7557

Design Type PN DN [mm]Max. service pressure [bar] / related temperatures [°C]3)

20 100 150 200 250 300 350 400 450 500 525

Steel down to 526 620 / 30 40 40 – 250 40 40 40 38 36 32 25 18 11 – –

–10 °C at nominal pressure 526 520 / 30 25 300 – 1000 25 25 25 24 22 20 15 11 6 – –

Stainless steel down to 528 620 / 30 40 40 – 250 40 33 31 29 28 26 26 – – – –

–40 °C at nominal pressure 528 520 /30 25 300 – 1000 25 20 19 18 17 16 16 – – – –

High-temperature steel526 822 / 32 100 65 – 400 100 100 100 100 100 100 100 97 85 54 37down to –10 °C at

nominal pressure

3) Max. service temperature for valve with spring + 300 °C.

A2

49

NAF-Check ValvesDN 40 – 1000 mm, PN 10 – 100

Pressure Drop Chart

V·W = V· ·




ρ1000

The curves given in the chart are valid for water at 20 °C. To read the pressure drop for other fluids the equivalent watervolume flowrate must be calculated and used in the graph.The values indicated in the chart are applicable to valves withhorizontal flow. With vertical flow insignificant deviationsoccur only within the range of partial openings.

The chart and flow characteristics are available up to andincluding PN 40. Higher PN increase the zeta values andpressure drops at the same flowrates by approx. 20 %. The kvs values decrease accordingly.

,,,

Volu

me

flow

V· W

Pressure drop Δp

50

The Power of Quality

No early wear on hinge pins orspringsDual-plate check valves BB featuretwo hinge pins and four closingsprings for lower opening pressures.

Seat not subject to wear or damageDuring the opening process the hingeside of the plates opens first, therebyeliminating wear of the seatingsurfaces (soft or metal-to-metal seat)and extending the service life of thedual-plate check valves BB.

A positive safeguard against waterhammerDual-plate check valves BB areavailable with patented adjustabledampers to protect the installationagainst damage caused bywaterhammer.(See page 43)

Leakproof bodyThe body of the dual-plate checkvalve has no external through-hole,hence no need for unnecessary platereplacements due to a leaky valvebody.

Suitable for use in aggressive fluidsThe dual-plate check valves BB areavailable with plastic or hard-rubberlining for application in seawater andcorrosive fluids.

GESTRA-DISCOCHECK® Dual-Plate CheckValves and DISCO® Swing Check Valves

GESTRA's extensivecustomer adaptation anduncompromising qualitystandards guaranteeoutstanding productreliability coupled witheconomic efficiency andincreased plant safety.

A3-

A8

A3 Tank-Car and Tank-Container ValvesA4 Return-Temperature Control ValvesA4 Self-Acting Pressure and

Temperature ControllersA4 Control Valves A5 Ball ValvesA6 Safety ValvesA7 StrainersA8 Stop Valves

Tank-Car and Tank-Container Valves............................................................ 52 – 53

Return-Temperature Control ValvesCooling-Water Control Valves CW GESTRAMAT ....................................... 54 – 55Return-Temperature Control Valves BW KALORIMAT ................................ 56 – 57

Self-Acting Pressure and Temperature ControllersPressure-Reducing Valves 5801.......................................................................... 58Pressure-Maintaining Valves 5610 ...................................................................... 59Self-Acting Temperature Controllers .......................................................... 60 – 62

Control ValvesSingle-Seat Control Valves with Electric or Pneumatic Actuator ...................................................................................... 63Control Valves ZK with Radial Stage Nozzle ............................................ 64 – 67

Ball Valves ...................................................................................................... 68 – 71

Safety Valves GSV .................................................................................................. 72

Strainers GSF, SZ ............................................................................................ 73 – 74

Stop Valves GAV ...................................................................................................... 75

Page

52

Tank-Car and Tank-Container Valves

Loading and unloading system EV 30 with gas balance line for

mineral-oil and chemical tank cars

Application

Loading and UnloadingSystems EV, HVType EV 30Loading and unloading system for railtank cars carrying liquid products suchas fuel oils, liquid chemical productsetc.; with automatic vacuum breaker.

Type HV 105, HV 215Hydraulically-operated loading andunloading system for rail tanks carryingpressure-liquefied gases. The systemcomprises two valves for liquid phaseand gas phase, an operating deviceand a control unit.

Rapid-Action Safety Bottom Valves Type HWVSpring-loaded rapid-action bottom valves for loading and unloading railtanks carrying inflammable gasesliquefied under pressure, such aspropane, butane, ammonia etc.(mechanic, pneumatic or hydraulicoperation).

Rail Hook VZType VZ 10, VZ 20Rail hook to keep tank-car bottomvalves open during loading andunloading (mechanic or pneumaticdesign).

Rapid-Action Dome BonnetValves PVType PV 65Rapid-action safety valve mounted inthe dome bonnet for loading andunloading of very toxic gases liquefiedunder pressure, e. g. sulphur dioxide,chlorine, etc...

External Isolating Valves GZVType GZVIsolating valve used as secondary shut-off for rail tanks.

Loading & unloading system HV 215(tank car arrangement)

Rapid-action safety bottom valves HWV 46 and HWV 55

HWV 55, DN 80 mm

A3-

A8

53

Tank Car Valves

HWV 205/1

VZ 10

PV 65

GZV

MaterialSeat ring

DN [mm] PNStock

alternatively code

Loading and Unloading System

EV 30, mechanic operation Carbon steel FPM/PTFE 125 – 0810022

EV 30A, mechanic operation Stainless steel FPM/PTFE 125 – 0780022

HV 105, hydraulic operation Carbon steel CR/PTFE 80/50 25 0760018

HV 215, hydraulic operation Carbon steel CR/PTFE 80/80 25 0760119

Rapid-Action Safety Dome Bonnet Valve

Dome bonnet valve PV 65, pneumatic operation Carbon steel PTFE 40 – 0560017

Rapid-Action Safety Bottom Valves

HWV 55 Carbon steel CR/PTFE 80 25 0720220

HWV 46/4 Carbon steel CR/PTFE 50 25 0730218

Rail Hook

VZ 10, pneumatic operation, with limit switch Bronze/brass – – – 0820010

VZ 20, mechanic operation Bronze/brass – – – 0820210

Outer Isolating Valves

Manual isolating valve GZV, Flanged/Screwed 51/2" Carbon steel 100 10 0751121

Manual isolating valve GZV, Flanged/Screwed 51/2"

Stainless steel 100 10 0751621

Manual isolating valve GZV, 50 0752018with bellows, Carbon steel 25Flanged/flanged 80 0752020

Manual isolating valve GZV, 50 0752518with bellows, Stainless steel 25Flanged/flanged 80 0752520

54

Features of the CW Series● Direct acting proportional controller for regulating the cooling-water return

temperature.

● Reduced capital costs (for new plants) coolant and energy consumption dueto higher discharge temperatues

● The valve prevents short-circuiting and automatically balances largesystems.

● Straight-through body with solid-state expansion thermostat and settingdevice.

● Standard valve type CW 41 with pressure gauge (0–6 bar) and thermometer(–30 to +100 °C).

● MCW 41 = CW 41 with diaphragm actuator. (Retro-fitting of diaphragmactuator possible).

CW 41

Cooling Water Control Valves CWGESTRAMAT

Application

CW 41for industrial cooling water

CW 44

CW 41/4 for brine, ammoniacal water, andCW 44 k chlorinated hydrocarbons

MCW 41 for heavily contaminated cooling systems

Specification*)

L

Type PN ΔPMX Material Pressure/Temperature[bar] EN ASTM PMA / TMA PMA / TMA

CW 41 16 6 EN-JS 1049 – 1) 16 bar/–32 °C 16 bar/110 °C 2)3)

CW 41/4 16 6 EN-JS 1049 – 1) 16 bar/–32 °C 16 bar/110 °C 2)3)

CW 44 25 16 1.0460 A 105 1) 25 bar/–2 °C 25 bar/110 °C 2)3)

CW 44 k 25 16 1.0460 A 105 1) 25 bar/–37 °C 25 bar/85 °C 2)3)

1) ASTM nearest equivalent grade is stated for guidance only.Physical and chemical properties comply with EN.

2) Temperature only admissible for a short time

3) Admissible temperature depends on type of thermostat:type n (standard) 110 °C, type w (wax) 100 °C, type k (brine) 85 °C

*) For more information see data sheets.

Temperature Ratings

024681011121416182022

MCW 41

w = wax thermostatn = standard thermostatk = thermostat for brine

r = reduced cone for small flowrates

s = standard cone for large flowrates

Type Thermostat/cone combination Adjustment range

CW 41 wr or ws 20 °C – 60 °CCW 41/4 nr or ns 3 °C – 100 °C

kr or ks –32 °C – 74 °C

CW 44 n –2 °C – 106 °C

CW 44 k k –37 °C – 71 °C

CW 44

L

A3-

A8

55

Cooling-Water Control Valves CWGESTRAMAT

End Connections and Overall Lengths

Flowrates (kv values)

Type Cone DN 25 DN 40, DN 50 DN 80, DN 100

CW 41r

Kvs value [m3/h] 2.1 6.5 20

CW 41/4 Kvo (Preset bleed flow) [m3/h] 0.12 0.31 1.0

sKvs value [m3/h] 10.5 31 98

Kvo (Preset bleed flow) [m3/h] 0.55 1.5 5.0

3/8" 1/2" 3/4" 1"

CW 44 – Kvs value [m3/h] 0.66 0.66 1.37 1.37

CW 44 k – Kvo (Preset bleed flow) [m3/h] 0.04 0.04 0.04 0.04

Overall length L [mm]Type End connection DN 10 DN 15 DN 20 DN 25 DN 40 DN 50 DN 80 DN 100

3/8" 1/2" 3/4" 1" 11/2" 2" 3" 4"

CW 41 Flanged DIN PN 16 – – – 160 200 230 310 350

CW 41/4 Flanged DIN PN 16 – – – 160 200 230 310 350

CW 44 Screwed sockets 95 95 95 95 – – – –

CW 44 k Screwed sockets 95 95 95 95 – – – –

56

Return-Temperature Control Valves BWKALORIMAT

Features of the BW series● Direct acting proportional controller for maintaining constant return

temperatures.● Used for regulating large heating systems and tracing systems, or for the

temperature control of individual heat exchangers (washing baths, chemical andgalvanic baths).

● The valve prevents short-circuiting and automatically balances large systems.● Straight-through valve with balanced valve sleeve. Closing temperature set at

our works.● Valves with external setting device available on request.

Application

Specification

BW 31 for hot waterBW 31 A for thermal oils

BW 31, DN 15–25 mm

End Connections and Overall Lengths L

BW 31 PN 40Material 1.0460 (P250GH / C 22.8) / ASTM A105Size (DN) 15, 20, 25Connection Flanged to EN PN 40Service pressure PMA [bar] 40 37.3 30.2 25.8 23.1Inlet temperature TMA [°C] 20 100 200 300 400

BW 31 PN 25Material 1.0460 (P250GH / C 22.8) / ASTM A105Size (DN) 40Connection Flanged to EN PN 25Service pressure PMA [bar] 25 23.3 19.4 16.1 14.4Inlet temperature TMA [°C] 20 100 200 300 400

BW 31A PN 40Material 1.0460 (P250GH / C 22.8) / ASTM A105Size (DN) 15, 20, 25Connection Flanged to EN PN 40Service pressure PMA [bar] 40 37.3 30.2 25.8 23.1Inlet temperature TMA [°C] 20 100 200 300 400

BW 31A PN 25Material 1.0460 (P250GH / C 22.8) / ASTM A105Size (DN) 40Connection Flanged to EN PN 25Service pressure PMA [bar] 25 23.3 19.4 16.1 14.4Inlet temperature TMA [°C] 20 100 200 300 400

External setting devicefor BW 31

Overall length L [mm]Type Connections DN 15 DN 20 DN 25 DN 40

1/2" 3/4" 1" 11/2"BW 31 Flanged EN PN 25 150 150 160 200

Flanged ASME 150 150 150 160 200Screwed sockets 95 95 95 –

BW 31A Flanged EN PN 25 150 150 160 200Flanged ASME 150 150 150 160 200Screwed sockets 95 95 95 –

L

Admissible differential pressure (upstream pressure

6minus downstream pressure)Δ PMX [bar]

Setting devicefor BW 31A

A3-

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57

Return-Temperature Control Valves BWKALORIMAT

Adjustable closing temperatures (without external setting device)

Adjustable closing temperatures (with external setting device)

Δt = temperature difference in Kelvin [K]between closing temperature (temperatureat which the valve is closed) and returntemperature.

Capacity Charts

BW 31, DN 151) BW 31, DN 20 and 251)

BW 31, DN 401)

Adjustablerange

DN 15 mm DN 20 mm DN 25 mm DN 40 mm

Type 1/2" 3/4" 1" 11/2"

BW 31 60 °C - 130 °C 40 °C - 115 °C 40 °C - 115 °C 50 °C - 110 °C

BW 31A 120 °C - 270 °C 100 °C - 280 °C 100 °C - 280 °C 100 °C - 270 °C

BW 31 60 °C - 130 °C 40 °C - 115 °C 40 °C - 115 °C 50 °C - 110 °C

BW 31A 90 °C - 270 °C 70 °C - 270 °C 70 °C - 270 °C 70 °C - 270 °C

1) For capacity chart BW 31 A see datasheet.

58

Dimensions [mm] and Weights [kg] of Actuator

Dimensions [mm] and Weights [kg] of Water Pot Seal

Self-Acting Pressure ControlPressure Reducing Valve 5801

ApplicationType 5801 Pressure-reducing valve for use with steam and other fluids.

In all energy and process systems.

DesignThe pressure-reducing valve is a balanced single-seat proportional controller operating without auxiliary energy.The pressure-reducing valve consists of a body with internals, bellows, spring,handwheel and actuator. For steam and liquids at temperatures above 100 °C a water-seal pot is required to protect the actuator diaphragm.

Pressure-reducing valve 5801

L

H

h1

∅ d

lWater-seal pot

17.2 x 2.6

3/8"

1/2"

Schematic installation diagram

min. 1 m

min. 10 x D

Water-seal pot

Sensing line8 x 1.0 mm

Sensing lineconnection

Strainer

Pessure-reducing valve

Schematic Representationof a Compact-Design Pressure ReducingStation

1 Pressure-reducing valve 5801

2 Steam drier and purifier TD3 Float trap UNA4 Safety valve GSV5, 6, 7 Isolating valves GAV8 Strainer GSF9 Pressure gauge

9 94

75 8

2

3

6

1

Dimensions [mm] and Weights [kg] of Valve BodyDN 15 20 25 32 40 50 65 80 100 125 150 200

L 130 150 160 180 200 230 290 310 350 400 480 600

H 390 390 390 408 425 500 505 590 590 705 725 760

Weight 0.7043 7 8 9 12 14 18 26 40 50 77 112 170

Weight 1.0619 7 8 9 12 14 19 27 40 54 82 115 176Weight 1.4581

Actuator A11 A2 A3 A4 A51 A6 B11 B2

∅ A 150 160 195 270 355 510 150 160

h1 90 100 100 120 165 220 90 110

Approx. weight 2.8 4.5 6.0 4.5 10 28 3.5 5.5

Size l d Size DN Weight

1 206 88.9 15 – 65 1.7

2 172 152.4 80 – 100 3.5

3 250 152.4 125 – 200 4.9

∅ A

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59

Self-Acting Pressure ControlPressure-Maintaining Valve 5610

ApplicationType 5610 Pressure-maintaining valve for maintaining upstream pressures

independent of downstream pressures for use with steam, gasesand liquids.

DesignThe pressure-maintaining valve is a self-acting proportional controller with single-seat and balanced valve.The pressure-maintaining valve consists of a body with internals, bellows, spring,handwheel and actuator. For steam and liquids at temperatures above 100 °C awater-seal pot is required to protect the actuator diaphragm.

Dimensions [mm] and Weights [kg] of Actuator

Dimensions [mm] and Weights [kg] of Water-Seal Pot

Dimensions [mm] and Weights [kg] of Valve Body

Diagrammatic layout ofpressure-maintaining control unit with flash-vessel

∅d

lWater-seal pot

17.2 x 2.6

3/8"

1/8"

min. 1 m

Water-seal pot

Sensing line8 x 1.0 mm

Sensingline connection

Pressure-maintaining valve 5610

Schematic installation diagram

L

H

h1

DN 15 20 25 32 40 50 65 80 100

L 130 150 160 180 200 230 290 310 350

H 405 405 405 410 425 495 500 590 590

Approx. weight 10 11 12 14 18 23 35 48 70

Actuator A11 A2 A3 A4 A51 A6 B11 B2

∅ A 150 160 195 270 355 510 150 160

h1 90 100 100 120 165 220 90 110

Approx. weight 2.8 4.5 6.0 4.5 10 28 3.5 5.5

Size l d Size DN Weight

1 206 88.9 15 – 65 1.7

2 172 152.4 80 – 100 4.9

∅ A

Strainer

Pressure-maintaining valve

60

ApplicationTemperature control in heating and cooling processes in industrial plants,for h.v.a.c services and marine engineering. For liquids, gases, vapours.

DesignThe self-acting temperature controllerconsists of a valve featuring athermostat and a sensor. According tothe service conditions the controller isoptionally equipped with a coolingunit, a sensor pocket or a safetythermostat.The temperature sensed by thesensor changes the volume of themeasuring liquid in the capillary tube.The resulting pressure acts directly onthe actuating piston which, in turn,operates the valve spindle. As thetemperature rises, the regulating valveis held in closed positon (heatingprocess) or open position (coolingprocess) until the pre-set releasetemperature is reached.When the temperature drops again, abuilt-in return spring resets the valveto original position.

ValvesTwo-way valves, with single seat orpressure-balanced single/doubleseat. Double-seated, two-wayreverse-acting valves or three-wayvalves for diverting and mixingapplications. Valve componentsmade of gunmetal, cast iron, nodularcast iron or cast steel, with flangedor screwed connections.

ThermostatThe thermostat is firmly attached tothe sensor capillary tube. The rod-,spiral- or airduct-type sensors aremade of copper or high-alloystainless steel.The capillary tube is available in different lengths, made of copper,high-alloy stainless steel or with PVCcoating.Special designs:“Duostat” double-thermostat withtwo sensorsSafety thermostat SH 4S.

Examples of Industrial Process Applications

Heat exchanger with constant flow-temperature of the secondary circuit controlled on the steam side

Cooling-water return control for constant cooling-water return temperatures

Valve

Thermostat

Sensor

Heating steam

Condensate

Hot water supply

Two-way valve with safety thermostat

Hot waterreturn

Inlet

Cooling water return

Cooler

Outlet

Self-Acting Temperature ControllersSystem Clorius

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61

Dimensions [mm] and Weights [kg] for Valves and Thermostats


30 E

G

C

F

H

D

A

B

30 E

G

C

F

H

D

A

B

27

275

50

100

3101"

50

Safety thermostatSH 4 S

M1F

G1F

H1F

L

G1

H2

H1

M1FB

G1FB

H1FB

L

G1

H1

H

L 1 S L

H1

H

L 2 SL

H1

H

L2SR L

G1

HH

1

M2FR

G2FR

H2FR

G1

L

H2

H1

Valve type DN 15 20 25 32 40 50 65 80 100 125 150

[in] 1/2" 3/4" 1" 11/4" 11/2" 2"

L 130 150 160 180 200 230

H1 80 85 95 105 110 125

H2 60 65 70 75 85 95

M1F/G1F kg 3.1 4.2 5.5 8.1 9.7 14.7

H1F kg 3.4 4.6 6.1 9.0 10.8 15.5

L 160 180 200 230 290 310

H 180 195 205 225 260 275

H1 70 75 85 95 110 115

M1FB kg 6.0 9.0 13.0 16.0 23.0 38.0

G1FB kg 6.0 9.0 13.0 16.0

H1FB kg 6.0 9.0 13.0 16.0 23.0 38.0

L 75 87 99

H 65 67 67

H1 20 23 25

kg 0.7 0.8 1.1

L 90 100 113 129 153

H 82 80 82 118 122

H1 48 53 58 68 71

kg 1 1 1.6 2.9 3.8

L 75 87 99 113 129 153

H 43 45 50 55 65 70

H1 80 80 80 80 90 94

kg 1.0 1.0 1.0 1.5 3.0 4.0

L 150 160 180 200 230 290 310 350 400 400

H1 63 70 75 85 95 110 155 145 160 180

H2 112 117 151 155 163 180 195 240 260 293

kg 5.0 6.5 9.0 11.0 16.0 21.0 35.0 39.0 75.0 77.0

Thermostats Typ V 2.05 Typ V 4.03 Typ V 4.05 Typ V 4.10 Typ V 8.09 Typ V 8.18K = sensor of copperN = sensor of high alloy S.S. K N K N K N K N K N K N

Adjusting cylinder A 305 305 385 385 385 385 385 385 560 560 560

B 405 405 525 525 525 525 525 525 740 740 740

Rod- and spiral-type C 210 190 210 190 390 380 490 515 710 745 800

sensor with BSP connection D 235 170 235 170 235 250 325 325 425 435 810

E 22 22 22 22 22 22 28 25 28 25 34

F 49 49 49 49 49 49 49 49 49 49 49

G 3/4 3/4 1 1 1 1 1 1 2 2 2

H 2" 2" 2" 2" 2" 2" 2" 2" 2" 2" 2"

kg 1.8 1.8 2.4 2.4 2.6 2.6 3.3 3.3 6.3 6.3 7.3

kg 2.3 2.3 2.9 2.9 3.1 3.1 3.8 3.8 6.3 6.3 7.3

62


Three-way valves available on request.

Single-seated regulating valves with flanged ends and rod-type copper sensor with copper capillary tube (3 m)DN [mm] 15/6 15/9 15/12 15 20 25 32 40 50 65 80

kvs value 0.45 0.95 1.7 2.75 5 7.5 12.5 20 30 50 80

ΔΔpmax for sensor type 2.05 21 13 9.3 5.3 1.9 0.9 – – –

Fluid: saturated steam 4.05 40 38 24 15 6.7 – – – –

Type M1F, G1F, H1F 4.10 – – – – – 4.1 1.9 0.8 –

8.09 – – – – 16 10 5.8 3.5 2.3

Balanced, single-seated regulating valves with flanged ends and rod-type copper sensor with copper capillary tube (3 m)DN [mm] 15/6 15/9 15/12 15 20 25 32 40 50 65 80

kvs value 0.45 0.95 1.7 2.75 5 7.5 12.5 20 30 50 80

ΔΔpmax for sensor type 4.05 15 – – – – –

Fluid: saturated steam 4.10 – 12 8.1 5.7 – –

Type M1FB, G1FB, H1FB 8.09 – 14 11 8.7 6.4 –

8.18 – – – – – 4.3

Double-seated reverse-acting valve with screwed connection and rod-type copper sensor with copper capillary tube (3 m)BSP 1/2" 3/4" 1" 11/4" 11/2" 2"

kvs value 2.75 5 7.5 12.5 20 30

ΔΔpmax for sensor type 2.05 15 11 7.1 4.6 – –

Fluid: water < 120 °C 4.05 15 11 7.1 4.6 – –

Type L2SR 4.10 – – – – 2.7 1.8

Double-seated reverse-acting valve with flanged ends and rod-type copper sensor with copper capillary tube (3 m)DN [mm] 20 25 32 40 50 65 80 100 125 150

kvs value 5 7.5 12.5 20 30 50 80 125 215 310

ΔΔpmax for sensor type 2.05 8.3 8 – – – – – – – –

Fluid: water < 120 °C 4.05 8.3 8 7 – – – – – – –

Type M2FR, G2FR, H2FR 4.10 – – – 6.6 5.3 10 6.7 – – –

8.09 – – – – – – – 12.1 – –

8.10 – – – – – – – 12.1 9 7.5

Closing Pressure Ratings for Valves and Sensors

Single-seated regulating valves with screwed end connection and rod-type copper sensor capillary tube (3 m)BSP 1/2" / 6" 1/2" / 9" 1/2" / 12" 1/2" 3/4" 1"

kvs value 0.45 0.95 1.7 2.75 5 7.5

ΔΔpmax for sensor type 2.05 16 11 – 4.9 2.4 –

Fluid: saturated steam 4.05 16 16 – 13 7.7 –

Type L 1S 4.10 – – – – – 4.7

Double-seated regulating valves with screwed connection and rod-type copper sensor with copper capillary tube (3 m)BSP 1/2" / 6" 1/2" / 9" 1/2" / 12" 1/2" 3/4" 1" 11/4" 11/2" 2"

kvs value 0.45 0.95 1.7 2.75 5 7.5 12.5 20 30

ΔΔpmax for sensor type 2.05 – – – – – – 7.8 – –

Fluid: water <120°C Type L 2S 4.10 – – – – 40 40 25 21 14

A3-

A8

63

Control Valves with Electric and Pneumatic Actuators

Dimensions [mm] and Weights [kg]

ApplicationsType V 725 Control of liquids, gases and steam up to 250 °C.

Ultra-compact pneumatic design thanks to directly attached positioner.

Max. Differential Pressure Ratings [bar] for Actuator Sizing

H2

∅ D

L

H1

L

DN 15 20 25 32 40 50 65 80 100

∅ D Lift 20 mm Lift 40 mm

Length L 130 150 160 180 200 230 290 310 350

H1 IP-127 198 355 355 355 356 356 361 – – –

IP-252 265 362 362 362 363 363 368 – – –

IP-502 352 – – – – – – 536 536 539

IP-700 405 – – – – – – 647 647 650

H2 AP-102 177 508 508 508 525 525 578 – – –

AP-204 177 508 508 508 525 525 578 631 631 635

AP-208 177 – – – – – – 669 669 673

Weight IP-127 13 13 15 18 20 24 – – –

IP-252 17 18 19 23 24 28 – – -

IP-502 – – – – – – 57 65 79

IP-700 – – – – – – 72 77 93

AP-102 10 11 12 15 17 21 – – –

AP-204 10 11 12 16 17 22 37 44 58

AP-208 – – – – – – 39 46 60

Pneumatic actuator Electric actuatorkvs2) DN Lift

IP-127 IP-252 IP-502 IP-700 AP-102 AP-204 AP-208[m3/h] [mm] [mm]FS1) FS1) FS1) FS1)

1 40 40 40 40

1.615, 20, 25

40 40 40 40

2.5 40 40 40 40

4 40 40 40 40

5.6 15 40 40 40 40

6.3 20, 25, 32 40 40 40 40

8 20 20 40 40 40 40

10 25, 32, 40 40 40 40 40

14 25 35 40 32 40

16 32, 40, 50 35 40 32 40

22.4 32 17 40 15 40

25 40, 50 17 40 15 40

31.5 40 12 31 10 30

40 50 10 28 9 27

47.5 50 6 19 6 18

40 65 40 40 27 40

63 65, 80 38 40 16 32

80 65 23 34 9 19

100 80, 100 23 34 9 19

125 80 40 15 23 6 13

160 100 14 21 5 11

180 100 9 14 3 8

Pneumatic actuators with spring range 2.0 – 4.8 bar. Other ranges on request.Max. differential pressure for control valves with PTFE rings. 1) Standard version “spring to close”, “spring to open” available on request.2) Kvs value 0.16/0.25/0.4 and 0.63 m3/h on request.

64

600

500

400

300

200

100

00 100 200 300 400 500 600

t in [°C]

p in

[bar

]

300

150

200

100

00 100 200 300 400 500 600

t in [°C]

p in

[bar

]

250

50

Control Valves ZK with Radial Stage NozzleZK Range 600

2-stage expansion withbalanced pressure for

ZK 613

Throttling unit A1/ A2with 4-stage expansion

ZK 610

ZK 613

ApplicationFor large flowrates;used as■ Feedwater control valve■ Heating steam valve■ Start-up vessel drain valve

Features■ Excellent sealing and control

characteristics■ Extremely wear resistant

■ Valve designed on modularassembly principle

■ Low sound level■ Easy assembly and inspection

of nozzle insert■ Variable valve characteristics

(linear < > equal-percentage)■ kvs range from 18 to 969 m3/h■ Leakage-free pressure-balanced

design

1) Throttling units: A1 for liquids, A2 for steam, B for 2-phase flow

Max. kvs values [m3/h], designs, pressure/temperature ratings

Technical Data

1.5415 (pressure-balanced)

1.7380 (pressure-balanced)

1.5415 (not pressure-balanced)

1.5415(not pressure-balanced)

ZK 610/ZK 613

Throttling unit A1/A21) Throttling unit B1)

ΔΔp 40/50 80 120 150 >> 150 40 80 120 150 >> 150(bar) 1-stage 2-stage 3-stage 4-stage 5-stage 1-stage 2-stage 3-stage 4-stage 5-stageDN

100 98/89 54/42 44/41 19/18 18/18 59 54 48 21 20

125 154/140 84/66 69/64 30/27 28/27 92 84 76 32 31

150 243/221 132/104 108/100 47/42 43/42 145 133 120 50 49

200 385/350 208/164 170/157 73/66 68/65 229 210 189 78 77

250 611/555 330/260 270/249 116/105 108/104 363 333 300 124 123

300 969/880 524/413 428/395 184/167 172/165 576 528 476 197 195

Angle/ Z pattern

1.5415(pressure-balanced)

A3-

A8

65

Control Valves ZKwith Radial Stage Nozzle

Radial stage nozzle as control unitof ZK 29

Radial stage nozzle with tandem shut-off for ZK 213

Application For the decrease of high pressuredrops in industrial plants and powerstations as:

■ Injection cooling valve

■ Warm-up valve

■ Drain valve

■ Feedwater control valve

■ Leak-off valve

■ Start-up pot drain valve

■ Level control valve

Features ■ Excellent sealing and control

characteristic

■ Extremely wear resistant

■ Low sound level

■ Easy assembly and inspection of nozzle insert

■ Variable valve characteristics (linear < > equal-percentage)

■ Tandem shut-off for ZK 313 and ZK 213

■ Different actuators available

1) Butt-weld ends of other material by welding of pipe ends possible.

Type Body1)

ZK 29, DN 25, 50 Forged alloy steel 13 CrMo 4 4 (1.7335)

ZK 29, DN 80, 100, 150 Cast steel GS-17 CrMo 5 5 (1.7357)

ZK 210 Forged alloy steel 13 CrMo 4 4 (1.7335)

ZK 412 Forged alloy steel 15 Mo 3 (1.5415)

10 CrMo 9 10 (1.7380)


10 CrMo 9 10 (1.7380)

X 10 CrMo VNb 9 1 (1.4903)

(P 91)


WB 36 (1.6368)


WB 36 (1.6368)

Type ZK 29 ZK 210 ZK 412 ZK 313 ZK 513 ZK 213

Handwheel ● ● ● ● – –

Electric rotary actuator ● ● ● ● ● ●

Electric linear actuator ● ● ● ● ● ●

Electro-hydraulic linear actuator – – – ● ● ●

Pneumatic actuator ● ● ● ● – –

Part-turn actuator ● – – ● – ●

Materials

Actuators

66


Technical DataKvs-values [m3/h] (linear characteristics), design, pressure/temperature ratings

Straight-through / angle

t [°C]

p [b

ar]


t [°C]

p [b

ar]


t [°C]

p [b

ar]

DN Δ p 100 bar Δ p 180 bar

25 0.8 1.5 2.3 0.550 3.3 6.5 10 26580 9.5 18 28 5

100125150200250300350400

ZK 210

DN Δ p 100 bar Δ p 180 bar Shut-off valve

25 1 1.5 2 0.5 1350 4 6 8 2 166580

100125150200250300350400

ZK 412

ZK 29

DN Δ p 100 bar

25 0.7 1.4 2.150 3 6 96580 14 21 28

100 20 33 46125150 70 100 130200250300350400

A3-

A8

67


Technical DataKvs-values [m3/h] (linear characteristics), design, pressure/temperature ratings

Straight-through / angle DN 25 – 65 Angle / Z pattern up to DN 80

t [°C]

p [b

ar]

Angle

t [°C]

p [b

ar]

Angle / Z pattern

t [°C]

p [b

ar]

ZK 313

DN Δ p 300 bar

25 1 1.5 2.3 3.6 5.5 8 11 13 4.5 9.550 1 1.5 2.3 3.6 5.5 8 11 13 4.5 9.565 1 1.5 2.3 3.6 5.5 8 11 13 4.5 9.580 11 14.5 17 9.5

100 11 14.5 17 9.5125 11 14.5 17 9.5150200250300350400

Δ p370 bar

2

Δ p 560 bar

2550 3 565 3 5 980 3 5 9 12

100 5 9 12 20125 9 12 20 30150 12 20 30200 20 30250300350400

ZK 513

1 3

DN

Bg.

sizes

Δ p 300 bar

1 2 3 4 5 1 2 3 4 5

25506580 13 10

100 13 26 10 20125 13 26 39 10 20 30150 26 39 60 20 30 46200 39 60 90 30 46 70250 60 90 46 70300 90 70350 70400 70

ZK 213 Δ p 560 barDN

Bg.

sizes

Adaptation of nominal sizes is possible

68

Ball Valves

Design Benefits ofNAF-Duball■ Full-port ball valve that can be

used as control, on-off and shut-offvalve.

■ Off-centre joint-face of the valvebody makes the valve easy tomaintain and service.

■ “Floating” ball ensures tight shut-off in both flow directions, evenwith low differential pressures.

■ Robust, blow-out proof stem anddrive arrangement between balland stem.

■ Spindle seal with maintenance-freeO-rings or stuffing box.

■ Encapsulated soft seat rings ofcarbon-reinforced PTFE or metal-to-metal seat rings of Stellite.

Technical DataNominal sizes: DN 25-400

Pressure range: PN 10-40 ASME class 150-300

Overall lengths:PN 10: ISO 5752 series 12 (SSG 1042)ASME 150: ANSI B 16.10 class 150 LongPN 25-40: ISO 5752 series 4 (SSG 1043)ASME 300: ANSI B 16.10 class 300 Short

End connections: Flanged to DIN orASME B 16.5

Temperature range: up to 350 °C

Control pressure: Valve open: 1.5 x PNValve closed: 1.1 x PN

Tightness: PTFE sealSS-ISO 5208 class 3DIN 3230 BN leakage rate 1Metal-to-metal sealSS IEC 534-4 class V

Design Benefits ofNAF Setball■ Ball sector valves with PTFE or

metal-to-metal seating combinethe best features of ball and butter-fly control valves and can thereforebe used as control or shut-offvalve. Flanged or wafer-typedesign for installation betweenflanges.

■ One-piece stainless steel body.

■ Top/bottom support of ball sectorreduces torque.

■ V-shaped ball sector for widecontrol ranges and high accuracyeven with low flowrates andviscous fluids with a high concen-tration of solids.

■ Hemispherically shaped ball sectorface and PTFE seat ring ensuretight shut-off.

■ Seat ring available in Stellite orPTFE, stem sealing by means of O-rings or stuffing box with graphite packing.

Technical DataNominal sizes: DN 25-400

Pressure range: PN 10-40 ASME class 150 and 300

Max. differential pressure:Valve closed 25 bar DN 25-400Controlled 25 bar DN 25-80

15 bar DN 100-15010 bar DN 200-2508 bar DN 300-400

Overall lengths: According to IEC 534-3-2

End connections:For installation between flanges (DN 25-200) Flanges (DN 80-400)

Temperature range: up to 225 °C

Control pressure: Valve open: 1.5 x PNValve closed: IEC 534-4 class IV-S1

Tightness : PTFE sealISO 5208-2 class ADIN 3230 BN leakage rate 1Stellite sealIEC 534-4 class IV-S1Leakage rate: 5 x10-6 of max. kv value

Consult GESTRA for prices and designs.

Duball

Setball

A3-

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69

Ball Valves

Design Benefits Navalsteam• One-piece ball valve with reduced

port ball orifice

• Available in steel grade 37.8Suitable for saturated steam up to 17 bar

• Connections:Screwed sockets 1/2" – 2"Butt-weld ends 1/2" – 4"Flanged ends

DN 15 – 100 mmDN 15 – 50 mm, PN 40DN 65 – 100 mm, PN 25

Design Benefits Naval Stainless Steel• The Naval Stainless Steel is a

single piece ball valve with reducedbore

• Made from stainless steel grade1.4404

• Connections:Screwed sockets 1/2" – 2"Butt-weld ends 1/2" – 10"Flanges

DN 15 – 250 mmDN 15 – 50 mm, PN 40DN 65 – 250 mm, PN 16

Navalsteam/Stainless steelConnection: Screwed sockets

Navalsteam/Stainless steelConnection: Butt-weld ends

Navalsteam/Stainless steelConnection: Flanges

GESTRA uses ball valves for steam and condensate systems suppliedby other Flowserve Companies.

DD

L

L

D

L

With butt-weld endsDN PN L D

15 40 230 10

20 40 230 15

25 40 230 20

32 40 260 25

40 40 260 32

50 40 300 40

65 25 300 50

80 25 300 65

100 25 325 80

With flanged endsDN PN L D

15 40 130 10

20 40 150 15

25 40 160 20

32 40 180 25

40 40 200 32

50 40 230 40

65 16 270 50

80 16 280 65

100 16 300 80

125 16 325 100

150 16 350 125

200 16 400 150

250 16 530 200

Flanges: DIN 2501Overall length to: DN 15-50 DIN 3202/F1

DN 65-100 DIN 3203/F5

With female threadDN PN L D

15 40 85 10

20 40 100 15

25 40 115 20

32 40 130 25

40 40 150 32

50 40 180 40

Screwed connection to DIN ISO 228, part 1)

Technical Data

70

Ball Valves

NAF-Triball Ball ValvesDN 10–100 for max. 40 bar

Specification NAF-Triball is a full bore ball valvedesigned for on-off operation as wellas control applications for the metalseated version. The ball valve is madeof stainless steel for a max. pressureof 40 bar and available in sizes DN 10 – 100.

Main features:

• 3-piece body simplifies disassembling

• A floating ball ensures tightness in both directions even at low differential pressures

• The stem is provided with an axialmechanical seal made of PTFE thatseals off the media from the glandpacking.

• The PTFE gland packing fitted withan O-ring made of Viton can bere-tightened if necessary

• Valve seat made of glass-fibre reinforced PTFE or Stellite

• Hand lever can be locked in open or closed position

• Valve connection acc. to ISO 5211

ApplicationNAF-Triball with Stellite seat ring canbe used as control valve or as shut-off valve for many applications andvarious operating modes, e. g. forsampling suspended media where therisk is high for valve plugging. For thispurpose the valve is provided with aspecial end piece with the sameradius as the connected pipe, whichmakes it possible to weld it directly tothe pipe. As a consequence the ballwill be in very close contact with themedia, thus preventing the valve frombeing obstructed or plugged.

Material:

Body: 1.4408Ball: 1.4435Seat: PTFE or Stellite

PTFE sealHard rubberPN 16 FlangesPN 40 Flanges

Pressure [bar]

Service pressure, differential pressure and temperature

Type 888650 / 60

Type 888652 / 62

Type 888653 / 63

Type 888657 / 67

A3-

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71

End Connection and Overall Lengths

Screwed sockets Type 888650 – PTFE Type 888660 – Stellite

DN d0 d g L H R kg

10 12.7 R 3/8" 10 64 48 96 0.4

15 15.9 R 1/2" 15.5 74 54 124 0.7

20 20.6 R 3/4" 17 86 57 124 1.0

25 25.4 R 1" 19 98 64 142 1.4

32 31.8 R 1 1/4" 23 122 70 142 2.3

40 38.1 R 1 1/2" 23 136 86 202 3.4

50 50.8 R 2 " 23 154 93 202 5.6

65 63.0 R 2 1/2" 25 173 139 250 8.5

80 76.0 R 3" 28 193 150 250 13.0

100 95.0 R 4" 32 216 160 300 20.5

Butt-weld ends for ISO pipes Type 888657 – PTFEType 888667 – Stellite

DN d0 d t L H R kg

10 12.7 17.2 2.0 214 48 96 0.6

15 15.9 21.3 2.0 224 54 124 0.9

20 20.6 26.9 2.0 236 57 124 1.2

25 25.4 33.7 2.3 248 64 142 1.6

32 31.8 42.4 2.6 272 70 142 2.5

40 38.1 48.3 2.6 286 86 202 3.5

50 50.8 60.3 2.9 304 93 202 5.0

65 63.0 76.1 2.9 323 139 250 10.0

80 76.0 88.9 3.2 343 150 250 14.0

100 95.0 114.3 3.6 366 160 300 24.0

Butt-weld ends for DIN pipes Type 888653 – PTFEType 888663 – Stellite

DN d0 d d1 d2 L H R kg

10 12.7 10 12 17 214 48 96 0.6

15 15.9 15 17 21 224 54 124 0.9

20 20.6 20 22 27 236 57 124 1.2

25 25.4 25 28 33 248 64 142 1.6

32 31.8 32 35 42 272 70 142 2.5

40 38.1 40 43 49 286 86 202 3.8

50 50.8 50 54 60 304 93 202 6.3

65 63.0 65 69 76 323 139 250 10.0

80 76.0 80 84 91 343 150 250 14.5

100 95.0 100 105 114 366 160 300 24.0

Flanges Type 888652 – PTFEType 888662 – Stellite

DN Flange d0 D L H R Mass kg

15 PN 40 15.9 95 130 86 124 2.3

20 PN 40 20.6 105 130 86 124 3.2

25 PN 40 25.4 115 160 80 142 4.2

32 PN 40 31.8 140 180 100 142 5.1

40 PN 40 38.1 150 200 100 202 7.4

50 PN 40 50.8 165 230 110 202 10.0

65 PN 40 69.0 185 290 139 250 15.4

80 PN 16 76.0 200 310 150 250 24.0

100 PN 16 95.0 220 350 160 300 34.0

Other connections available on request

H

d0d

L

g

R

H

d0D

L

R

H

d0dd1d2

L

R

H

d0d2

L

R

t

72

Safety Valves GSV

DN1

∅ D1

l

∅ d0

H

Safety valve GSV

ApplicationFor use with steam, liquids, and non-corrosive gases and vapours.


Discharge Capacities for Saturated Steam [kg/h]

DN1 x DN2 20 x 32 25 x 40 32 x 50 40 x 65 50 x 80 65 x100 80 x125 100 x150 125x200 150x250

d0 18 23 29 37 46 60 74 92 98 125

l 95 100 110 115 120 140 160 180 200 225

l1 85 105 115 140 150 170 195 220 250 285

H 1) 215 233 325 366 413 526 603 660 660 735

H 2) – 234 331 372 419 529 606 663 663 735

X 150 150 200 250 300 350 400 450 450 450

Weight 9 9 12 16 22 32 56 75 85 131

1) 4421, 4425, 4422 2) 4414

Setpressure DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150

[bar]

0.2 84 137 217 354 547 930 1410 2180 2480 4030

0.5 130 212 337 549 849 1440 2190 3390 3850 6260

1.0 189 308 490 798 1230 2090 3190 4930 5590 9100

2.0 302 493 783 1270 1970 3350 5100 7880 8940 14500

3.0 406 663 1050 1710 2650 4510 6860 10600 12000 19500

4.0 507 827 1310 2140 3300 5620 8560 13200 15000 24400

5.0 607 990 1570 2560 3960 6740 10200 15800 17900 29200

6.0 706 1150 1830 2980 4610 7840 11900 18400 20900 34000

7.0 806 1310 2090 3400 5260 8950 13600 21000 23800 38000

8.0 905 1470 2340 3820 5910 10000 15200 23600 26800 43600

9.0 1000 1630 2600 4240 6550 11100 16900 26200 29700 48400

10.0 1100 1800 2860 4660 7200 12200 18600 28800 32600 53100

12.0 1300 2120 3370 5490 8490 14400 21900 33900 38500 62700

14.0 1490 2440 3890 6330 9780 16600 25300 39100 44400 7200

16.0 1690 2770 4400 7170 11000 18800 28600 44300 50300 81800

18.0 1890 3090 4910 8000 12300 21000 32000 49500 56100 91400

20.0 2090 3410 5430 8840 13600 23200 25300 54600 62000 100000

22.0 2290 3740 5950 9680 14900 25400 38700 59900 67900 111000

24.0 2490 4070 6470 10500 16200 27700 42100 65100 73900 120000

26.0 2690 4390 6990 11300 17500 29900 45500 70400

28.0 2890 4720 7510 12200 18900 32100 48900 75600

30.0 3090 5050 8030 13000 20200 34400 52300 80900

32.0 3290 5380 8560 13900 21500 36600 55700 86200

Calculation according to DIN 3320 and AD Bulletin A2, TRD 421.For discharge capacities for other set pressure ratings or fluids see data sheet.

▼

▼

Xl 1

∅ D

2

DN

2

A3-

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73

Strainers GSF

ApplicationIn piping systems upstream of equipment sensitive to dirt. For liquids, gases,steam and aggressive fluids.


for Y-Type Strainers with Flanged Connections PN 6 - 40

Strainer series 300 and 310with flanged connections

L

H

H1

DN

B

S ∅

ApplicationIn piping systems upstream of equipment sensitive to dirt. For liquids, gases,steam and aggressive fluids.


of Y-Type Strainers with Screwed Connections

Nominal size [in] 3/8" 1/2" 3/4" 1"0 11/4" 11/2" 2"0

Overall length GSF 331 L 80 80 95 100 120 140 180

Overall length GSF 332, 333, 335, 337 L 65 65 75 90 110 120 150

Overall length GSF 334, 338 L 80 80 120 120 150 150 200

Overall height GSF 331 H1 45 45 55 65 75 85 100

Overall height GSF 331 H 70 70 85 110 120 140 160

Overall height GSF 332, 333, 335, 337 H1 45 45 58 68 75 85 100

Overall height GSF 332, 333, 335, 337 H 75 75 95 110 125 140 160

Overall height GSF 334, 338 H1 55 55 85 85 100 100 115

Overall height GSF 334, 338 H 90 90 140 140 160 160 175

Mesh size 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Weight GSF 331 0.45 0.5 0.6 1.0 1.3 2.0 3.5

Weight GSF 332, 333, 335, 337 0.3 0.3 0.4 0.8 1.2 1.5 2.4

Weight GSF 334, 338 0.8 0.8 2.0 2.0 3.5 3.5 5.8

Y-type strainer with screwed connections series 330

H1

H

L

Nominal size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300

Overall length L 130 150 160 180 200 230 290 310 350 400 480 600 730 850

Overall height GSF 301, 303 H 100 125 140 160 200 225 310 345 405 475 540 645 880 1100

Overall height GSF 312, 319, 320 H 118 125 130 146 168 177 330 340 410 516 600 790 940 1050

Overall height GSF 321 H 100 120 135 145 200 225 310 345 405 475 540 645 725 855

Overall height GSF 322 H 100 120 135 145 200 220 300 285 360 52 575 750 850 1050

Overall height GSF 301, 303 H1 60 70 81 88 113 128 177 200 236 284 325 405 515 610

Overall height GSF 312, 319, 320 H1 81 85 100 100 120 133 200 210 250 313 362 475 530 640

Overall height GSF 321 H1 60 75 85 90 125 128 177 200 236 284 325 405 450 555

Overall height GSF 322 H1 60 75 85 90 125 135 180 175 215 310 345 450 505 640

Screen ∅∅ GSF 301, 303 S 20 25 29 38 50 60 65 80 95 110 131.5 180 255.5 307.5

Screen ∅∅ GSF 312, 319, 320 S 19 25 29 37 45 55 70 85 105 130 157 207 255.5 280

Screen ∅∅ GSF 321 S 15 20 25 32 40 60 65 80 95 110 131.5 180 220 280

Screen ∅∅ GSF 322 S 15 20 25 32 40 50 68 85 95 120 130 180 220 280

Screen length GSF 301, 303 B 52 62 74 77 97 112 172 193 222 243 287 332 510 620

Screen length GSF 312, 319, 320 B 52 56 57 67 95 102 178.5 182.5 226.5 286.5 339.5 454.5

Screen length GSF 321 B 52 65 70 75 105 112 172 193 222 243 287 332 315 463

Screen length GSF 322 B 52 65 70 75 105 115 170 154 196 234 311 332 385 463

Mesh size 0.6 0.6 0.6 0.6 0.6 0.6 1.2 1.2 1.2 1.2 1.5 1.5 1.5 1.5

Weight GSF 301, 303 2 3 3.5 5.5 6.5 9.5 15 22 32 48 63 104 169 226

Weight GSF 312, 320, 322 2 3 4 5.6 8 11 15 22 28 54 68 144 178 385

Weight GSF 319, 321 2 3 4 5.6 8 11 15 21 26 41 70 108 156 275

Plug without plug 1/2" 1"

74


for Wafer-Type StrainersL

Wafer-type strainers SZ 26a

D

Strainers SZ

Type SZ 26A

Nominal size DN 40 50 65 80 100 125 150 200

Overall length L 32 40 46 50 60 90 106 140

Diameter D 81 93 112 131 150 191 216 270

Weight 0.65 1.2 1.5 2.3 3.5 8.0 10.0 17.0

• Cylindrical body with drain plug

• Robust, hemispherical screen

• Minimum pressure loss

Features


ApplicationIn piping systems upstream of equipment sensitive todirt. For liquids, gases, steam and aggressive fluids.

Design

DN 40 – 100: with spiral centering ringMesh size 1.25 mm

DN 125 – 200: Mesh size 1.6 mm

optional DN 40 – 200: Additional fine screen

Mesh size 0.25 mm

Materials Pressure / temperatureType PN

EN ASTM PMA / TMA PMA / TMASZ 26A PN 40 1.43011) A182 F3041) 40 bar / -200÷20°C 22.2 bar / 400 °C

1) EN material similar to ASTM material.Observe different physical and chemical properties!

*) For more detailled pressure/temperature specifications as a function of the end connection refer to the data sheet.

A3-

A8

75

PN 15 20 25 32 40 50 65 80 100 125 150 200 250 300

GAV 803F/805F/ (16-806F 25)

4.7 7.4 11.2 18.3 21.3 44.2 73.2 112.2 173 288 410 725 1145 1635

GAV 811F 40 4.7 7.4 11.2 18.3 21.3 44.2 73.2 112.2 173 288 410 725 1145 1635

GAV 811 40 4.7 7.4 11.2 18.3 21.3 44.2 73.2 112.2 173 288 410 725 – –

GAV 820F/822F 40 4.7 7.4 11.2 18.3 21.3 44.2 73.2 112.2 173 288 410 725 – –

Stop Valves GAV

Dimensions [mm]*)

Weights [kg] *)

Kvs Values [m3/h] for valves with parabolic plug

Valve with limit switch

Soft seal plug for valves with bellowsMax. service temperature 150 °C

with PTFE virginMax. service temperature 200 °C

with 25 % carbon filled PTFE

See data sheet GAV forbutt-weld designs.

Stop Valve GAV PN 16 – 40with bellows spindle sealand safety stuffing box

H1

L1

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300

GAV803F 3.6 4.3 5.3 6.6 9.2 11.6 15.8 21.8 33.0 54.0 69.0 140 240 265

GAV805F 3.6 4.3 5.3 6.6 9.2 11.6 15.8 21.8 33.0 54.0 69.0 140 240 265

GAV806F 3.6 4.3 5.3 6.6 9.2 11.6 15.8 21.8 33.0 54.0 69.0 140 240 265

GAV811F 4.5 4.8 6.2 7.3 10.6 12.6 19.1 26.1 35.0 60.3 88.0 178 305 –

GAV820F/822F 4.3 4.8 6.3 7.3 10.3 12.6 19.0 26.0 35.0 56.0 74.0 144 – –

*) Dimensions and weights are rated for flanged design PN 16-40. For butt-weld design and pressure ratings PN 63 up to 160 see data sheets.

PN 16 – 40 DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300

Overall length L1 130 150 160 180 200 230 290 310 350 400 480 600 730 850

Overall height H1 205 205 210 210 225 230 245 265 365 395 425 550 720 775

GESTRA: Maximum Protection for Plant Personnel, Environment and Installation.

GESTRA ...• is your reliable one-stop shop• provides a 24 hours supply service

for standard equipment• has an efficient global service

network

Our products ...• are well tried and tested• can be commissioned with standard

spare parts• are compatible with equipment

produced by other manufacturers

The handling of hazardous gases andliquids imposes stringent safetyrequirements on the equipment used.In particular during the loading andunloading process all possible riskshave to be anticipated and excludedright from the beginning. Not only isthe operational reliability and safety ofloading & unloading equipment andvalves of the utmost importance, butalso their design features, materials,function etc. have to be considered.

GESTRA equipment is thereforemanufactured to the highteststandards of quality and reliability,incorporating safety features to meetall national and internationalregulations and requirements. Constant development and tech-nological advances are combined with GESTRAS's vast experiencebased on 70 years know-how andclose co-operation with all partiesinvolved to ensure customizedsolutions and equipment tailored toyour specific requirements.GESTRA tank car valves. Be on thesafe side.

GESTRA's 70 years ofaccumulated engineer-ing experience in themanufacturing of TC valves guaranteeextremely high qualityand safety standards.

Safety First – with GESTRA Valves for Tank Cars and Tank Containers (TC)

B


As Europe's largest provider of boiler equipment, GESTRA meets all the needs oftoday's market: a broad spectrum of products, faster time-to-market for newproducts, more performance for less money and customized solutions and services.This unique market position is based on extensive experience acquired over morethan 40 years in the design and manufacture of high-quality safety-oriented controlequipment. To compete in a truly global market, GESTRA is continuing toconsolidate the domestic market and, simultaneously, stepping up its efforts todeepen international activities outside Europe in order to optimize and extend itsnetwork of sales and marketing organizations all over the world.

Page

SPECTOR Family .................................................................................................... 78

Level Control, Monitoring and Limitation .............................................................. 79How to read type codes .................................................................................... 80 – 81Boiler equipment in acc. with TRD 604 / EN 12952/..53 .................................. 82 – 83Principles of measurement and fields of application ................................................ 84Equipment for steam and hot-water boiler plants ...................................................... 85Type Approvals at a Glance .............................................................................. 86 – 88

SPECTORbusBasic principles .............................................................................................................. 89Level limitation (low/high-level alarm)................................................................ 90 – 91Level control ...................................................................................................... 92 – 93

SPECTORcompactLevel control/limitation ...................................................................................... 94 – 95Pump control .................................................................................................... 94 – 95

Conventional DesignSelf-monitoring low/high-level alarms ................................................................ 96 – 97Modulating level control .................................................................................... 98 – 99

Accessories for Liquid-Level Alarms Fitted in External Level PotsLevel electrodes and controls........................................................................ 100 – 101

Level Probes and Control Units forVery High Pressure Ranges (NRG 211) .................................................... 102 – 103

Marine Applications......................................................................................104 – 105

Temperature and conductivity monitoring, oil detection see from page 108

Boiler Burner

Higher-levelcontrol system,e.g. Profibus DP

GESTRA’s SPECTOR Product Range Your safeguard for the future

Reliability, availability and economyhave always enjoyed top priority inboiler operation. To an increasingextent, another aspect is being added:plant automation and visualization.

To implement these fundamentalprinciples, GESTRA GmbH has fordecades now been working exclusivelywith electrode systems that are low inmaintenance and wear. In contrast toother systems, our electrodes functionentirely without moving parts.

In addition to the boiler houseequipment, these systems have nowalso conquered peripheral containers,such as condensate return systemsoperating with or without pumps,feedwater and condensate tanks andother vessels. Since the entire energycentre is only as effective as its weakestelement, many of our customerstherefore also demand automatedcontrol equipment for their peripheral containers.

GESTRA took another step forward byintroducing the SPECTOR productrange, comprising bus-based equipmentand compact-type equipment. Theinnovative SPECTOR products are notonly easy to integrate into existingautomation systems but also featuremany new additional benefits thatsimplify the designing andcommissioning of new installationsconsiderably.

SPECTOR Product Range

CANopen

B

79

Level Control, Monitoring and Limitation

Principles of MeasurementConductivity measurementThe water level is detected betweenthe electrode tips and the vessel wall (or reference electrode) andevaluated for control or limitation pur-poses. In this case it is essential thatthe medium is electrically conductive.The high-integrity self-monitoringdesign of the level alarms ensuresconstant supervision of the insulatingseal and electrode entry, immediatelyrecognizing malfunctions in thesystem and failure of the electrode orsupply cables. In addition, the equip-ment features periodic self-checkingof the electronic control unit and thecorresponding output contacts.Self-monitoring equipment withperiodic self-checking is required forboilers with temperature/pressureratings > 1 bar and > 120 °C and avolume > 50 l.Before installation, the length of theconductivity electrode rods must be cut to the required switching levels.

Capacitance measurementElectrode rod and vessel wall (orreference electrode) form a capacitor;air and the fluid to be controlled actas dielectric. Due to the differentdielectric constants of air and boilerwater the capacitance value betweenthe electrode and the vessel wallchanges concurrently with levelchanges.The switchpoints can be continuouslyadjusted during operation andmultiplied by connecting in parallelseveral electronic control units.

Types of ControlsWater level limiters(High-level/low-level alarms)As soon as the water level exceedsor falls below the adjusted switch-points the burner protection circuit isinterrupted (low level) or the feedpump is switched off (high level).

On-off level controlThe water level is controlled betweentwo fixed or adjustable switchpoints.The signals are directly transmitted tothe feed pump or valve.

Modulating level controlThe water level is continuouslymonitored and the actual value iscompared with the adjusted set pointby the associated controller. If adeviation between the two values isdetected, a signal will be sent to thecontrol valve to re-adjust the flowrateaccordingly, thereby enabling a moreeconomic and efficient steam plantoperation.

Field Bus SystemDigital Data Exchange

The Spector Bus system transfers thedigitized measurement data acquiredby the level probe to the electroniccontrol unit located in the controlcabinet. The centerpiece of this system is the stable and sophisticatedCAN bus (Controller Area Network).Several sensors and switches can beinterconnected via one bus line.

Apart from active cable monitoring aCAN bus system offers a host ofbenefits, such as increased designflexibility, reduced installation effort,optimized open and closed loopcontrol, centralized operation andremote monitoring.

The standardised network opens uphighly flexible possibilities for con-figuration. The CANopen protocol isused nowadays in medical equipment,electronic devices for marineapplications, public means of trans-port and in burner and boiler controlsof power plants.

Thanks to the many CANbusapplications a great number ofequipment and interface componentsare widely available, providing anideal addition to our product range.

MIN

M

URB 1

READYTOOPERATE

P E

NRS 2 -40

Min

Max1

2

4

3

Test

1

P3

E42

80

How to Read Type Codes

GESTRA Type Designations for Boiler Controls

Measured variable

B = Density (TDS)D = PressureL = ConductivityM = Mechanical QuantityN = LevelO = Oil and TurbidityP = Program controlU = UniversalZ = Time

Closed-loopcontrol

Function

A = DisplayB = Operating unitC = Control unitG = SensorN = Power supply unitR = ControllerS = SwitchT = TransmitterV = Preamplifier

Principle of Measurement

1 = Conductivity2 = Capacitance3 = Ultrasonic4 = Photoelectric5 = Temperature6 = n. a.7 = Inductive

Pressure Rating

1 = PN 62 = PN 106 = PN 407 = PN 638 = PN 63/1009 = PN 160

10 = PN 25011 = PN 320

Code of variantsConsecutively numbered

N R G 2 1 - 5 1

N R S 1 - 1

N R G S 1 6 - 1

B

81

How to Read Type Codes

GESTRA Type Designations for Boiler Controls

N R

Input signal(x)

Sensor

Sensor

Sensor

Sensor

a# Enclosure for wall mountingb Enclosure for installation in control cabinetc* 19" slide-in unitd Spare plug-in card for 19" slide-in unite Case for panel mountingf Integrated solenoid valve plug

# Often design b with additional enclosure for wall mounting

* Installation in 19" mounting panel provided on site or separatelysupplied 19" mounting panel

0/4.....20 mA

Output signal(y)

0/4.....20 mA

(Transmitter)T

(Switch)S

Three-position controllerW (Setpoint)R

Continuous controllerW (Setpoint)R

... ... Function:

Level Switch Type NRS 1-1 ..

82

a Self-monitoring low-level electrode NRG 16-40

ajLow-level alarm NRS 1-40/NRS 1-40.1

brModulating level control with fully integrated second level and conductivity (TDS) indicator: level electrode NRG 26-40, level controller NRR 2-40, control terminal and display unit URB

c Self-monitoring high-level alarm: level electrode NRG 16-41, level switch NRS 1-41

deTDS control / Continuous and intermittent boiler blowdown:Conductivity electrode LRG 16-40, continuous blowdown controller LRR 1-40, continuous blowdown valve BAE,intermittent blowdown valve MPA, 3/2 way pilot valve, strainer

f Sample cooler

g Flash vessel

h Residual blowdown heat exchanger

i Blowdown receiver (mixing cooler)

j Self-monitoring temperature limiter:resistance thermometer TRG 5-65, temperature switch TRV 5-40,NRS 1-40.1 (only with existingsuperheater)

k Safety valve GSV

l Pressure limiter DSH

m Pressure controller/transmitter

n DISCO Non-return valve RK 86 A

Boiler equipment acc. to TRD 604 (continuous operation without constant supervision for 24/72 hrs) or in accordance with other European guidelines, e. g. EN 12953 part 6

GESTRA Steam Plant

d

d

lc a b a

s a j b c d r

km

p

gh

f

p

npo

p p

p

e

j

q

t

i

t

B

83

o Strainer GSF

p Bypass/isolating valve GAV

q Electric/pneumatic control valve V 725

r Control terminal and display unit URB

s Operating data acquisition

t Feedwater monitoring:◗ On-line analysis of residual hardness of water ◗ Demineralization plant: TDS control

(conductivity monitoring)

Steam and Condensate System

u Steam trap

w Contamination detectors (ingress of acids, alkalis, etc.): Conductivity electrode LRG 12-1, conductivity transmitter LRT 1-6, max.-min. limit switch URS 2Alternatively with EC / TÜV approvalCompact electrode LRGT 16-1 Controller with MAX contact KS 90

v Oil and turbidity detector OR

x Electric/pneumatic three-way control valve for the discharge of contaminatedcondensate

y Condensate receiver tank

u n

v

x

n

y

w

w

GESTRA Condensate Monitoring

84

Technologically AdvancedLiquid Level ControlWith more than 40 years‘ experience in the design and manufacture ofindustrial electronics and almost acentury in all fields of steam trappingand shut-off valves, GESTRA enjoysa unique position in the industry as atrusted single-source partner for boilerequipment.

Right from the outset GESTRA blazed a trail in advanced boiler safety. Inour drive to set new safety standards,we were the first company to team upwith the German Technical Super-visory Association TÜV in order todesign self-monitoring low-level alarmsystems.

Apart from low-level alarms GESTRAnow offers an extensive range ofelectronic boiler equipment for powerstations as well as industrialapplications.

Our latest, trend-setting innovation isthe new Spector equipment featuringadvanced bus-based technology,which provides a future-proofframework for decentralized, flexibleoperations.

Application

MeasurementCapacitance Conductivity

Steam boilers ● ●

Hot-water boilers ● ●

Steam regenerator ● ●

Condensate tanks ● ●

Feedwater tanks ● ●

Fresh water tanks ● ●

Pump sumps ● ●

Holding tanks ● ●

Product tanks ● ●

Tunnel drainage ● ●

Drainage systems in power stations ● –

Autoclave drainage ● ●

Pump controls ● ●

Oil detection in cooling-water systems – ●

Daily service tanks for oil ● –

Diesel fuel tanks ● –

Fundamental Principles ofMeasurement and Applications

Examples of Industrial Applications

Purpose Application Principle of Level Level Switchmeasurement electrode switch point

Level control Fill or discharge control with protection against pump Conductivityrunning dry and high-level alarm meas. NRGS 1.-1 – fixed

Fill or discharge control with protection against pump Conductivityrunning dry and high-level alarm meas. NRG 16-42 NRS 1-42 fixed

Fill or discharge control with protection against pump Conductivity/running dry and high-level alarm capacitance meas. NRG 26-40 NRS 2-40 adjustable

Modulating fill or discharge control with protection against Conductivity/ NRG 26-40 NRR 2-40/URB adjustablepump running dry and high-level alarm incl. level indicator capacitance meas.

Modulating level detection for remote indication Conductivity/ NRGT 26-1 URA 2 –capacitance meas.

Modulating fill or discharge control with protection Conductivity/ NRGT 26-1 KS 92-1 adjustableagainst pump running dry and high-level alarm capacitance meas.

Fill or discharge control with protection against pump Conductivity/ NRGT 26-1 NRS 2-3 adjustablerunning dry and high-level alarm capacitance meas.

B

85

Equipment for Steam and Hot-Water Boiler Plants

Boiler Low level Feedwater High level First Conduct. Tempe-Level Level switch/ Switch- On-off Modulatingoperating limiter controller alarm low level sensing rature PN

electrode controller point control controlmode WB WR HW alarm electrode limiterTRD 701

● ● – – 6 NRGS 11-2 – fixed ● –max. 1 bar*)TRD 802for fast steam ● ● – – 40 NRGS 16-2 – fixed ● –generating units

TRD 604 ● – – – 40 NRG 16-40 (2x) NRS 1-40 (1x) fixed – –

24h-Betrieb ● – – – 63 NRG 17-40 (2x) NRS 1-40 (1x) fixed – –

2 X WB ● – – – 160 NRG 19-40 (2x) NRS 1-40 (1x) fixed – –

● – – – 320 NRG 111-40 (2x) NRS 1-40 (1x) fixed – –

1 X WR/HW ● – – – 40 NRG 16-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 63 NRG 17-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 160 NRG 19-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 320 NRG 111-11 (2x) NRS 1-7 (2x) fixed – –

– ● ● ● 40 NRG 16-42 NRS 1-42 fixed ● –

– ● ● ● 40 NRGS 16-1 – fixed ● –

EN 12953 – ● ● ● 40 NRG 26-40 NRS 2-40 adjustable ● –part 6 – ● ● ● 40 NRG 26-40 NRR 2-40/URB adjustable – ●

– ● ● ● 40 NRGT 26-1 KS 92-1 adjustable – ●

EN 12952 – ● ● ● 40 NRG 26-21 NRR 2-2 adjustable – ●part 7 – ● – – 40 NRG 26-21 NRR 2-1 adjustable – ●

– ● ● ● 63 144 LD / 705 KS 92-1 adjustable – ●

– ● ● ● 160 144 LD / 705 KS 92-1 adjustable – ●

TRD 604 ● – – – 40 NRG 16-40 (2x) NRS 1-40 (1x) fixed – –

72h-Betrieb ● – – – 63 NRG 17-40 (2x) NRS 1-40 (1x) fixed – –

2 X WB ● – – – 160 NRG 19-40 (2x) NRS 1-40 (1x) fixed – –

1 X WR ● – – – 320 NRG 111-40 (2x) NRS 1-40 (1x) fixed – –

1 X HW ● – – – 40 NRG 16-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 63 NRG 17-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 160 NRG 19-11 (2x) NRS 1-7 (2x) fixed – –

● – – – 320 NRG 111-11 (2x) NRS 1-7 (2x) fixed – –

– ● ●1) ● 40 NRG 16-42 NRS 1-42 fixed ● –

– ● ●1) ● 40 NRGS 16-1 – fixed ● –

– ● ●1) ● 40 NRG 26-40 NRS 2-40 adjustable ● –

– ● ●1) ● 40 NRG 26-40 NRR 2-40 / URB adjustable – ●

– ● ●1) ● 40 NRGT 26-1 KS 92-1 adjustable – ●

– ● ●1) ● 63 144 LD / 705 KS 92-1 adjustable – ●

– ● ●1) ● 160 144 LD / 705 KS 92-1 adjustable – ●

– – ● – 40 NRG 16-4 NRS 1-2 fixed – –

– – ● – 40 NRG 16-41 NRS 1-41 fixed – –

– – ● – 63 NRG 17-41 NRS 1-41 fixed – –

– – ● – 160 NRG 19-41 NRS 1-41 fixed – –

– – ● – 40 NRG 16-12 NRS 1-8 fixed – –

– – ● – 63 NRG 17-12 NRS 1-8 fixed – –

– – ● – 160 NRG 19-12 NRS 1-8 fixed – –

1 X LF ● 40 LRGT 16-1 KS 90 adjustable ● ●

● 63 LRGT 17-1 KS 90 adjustable ● ●

● 40 LRG 16-40 LRR 1-40 / URB adjustable ● ●

● 63 LRG 17-40 LRR 1-40 / URB adjustablel ● ●

63 LRG 17-1 LRR 1-5 / URS 2 adjustable ● –

160 LRG 19-1 LRR 1-5 / URS 2 adjustable – –

● 40/160 TRG 5-6x/TRV 5-40 NRS 1-40.12*) adjustable – –

● 40/160 TRG 5-5x TRS 5-6 adjustable – –

*) according to PED max. 0.5 bar1) Only as first alarm.

Low-level limiter and feedwater control electrodes or low-level limiter and high-level alarm electrodes can be installed together in one flange.2*) The level switch NRS 1-40.1 can be used for up to 4 limiting functions, e. g. 2 x NRG 16-40 (low level), 1 x NRG 16-41.1 (high level), 1 x TRV 5-40

(self-monitoring temperature limiter)

withoutconstantsupervision –72 hours2 Low level

limiters1 Feedwater

controller1 High-level

alarm

1Conductivitysensingelectrode

withoutconstantsupervision –24 hours2 Low level

limiter1 Feedwater

controller/high-levelalarm

with superheater1 Self-monitoringtemp. limiter

86

TRD 604 EN 12953, part 6

Function required recommended Section required recommended Section Equipment Type approval no.

2 Low-level yes 1.4 yes 4.3.1 NRG 16-40 / NRS 1-40 TÜV·SWB/SHWS·02-403limiters 3.6.1 5.7.1 Self-monitoring equipment EG BAF-MUC 02 02

with automatic routine testing 103881 002

NRG 16-11 / NRS 1-7 TÜV WB 01-354Self-monitoring equipment EG 01 202 931-B-01-with automatic routine testing 0007

Low-level limiter/ yes 1.4 yes 4.3.1 NRG 16-40 / NRS 1-40 TÜV·SWB/SHWS·02-403High-level alarm 3.6.1 5.7.1 Self-monitoring equipment EG BAF-MUC 02 02in Bus system 1.8 with automatic routine testing 103881 002

5.1 NRG 16-41 / NRS 1-41Self-monitoring equipmentwith automatic routine testing

Low-level limiter/ yes 1.4 yes 4.3.1 NRG 16-40 TÜV·SWB/SHWS·03-413High-level limiter/ 3.6.1 5.7.1 Self-monitoring equipment EG BAF-MUC 03 07Temperature 1.8 4.4 NRG 16-41.1 103881 004limiter 5.1 5.7.2 Self-monitoring equipment

1.6 TRG / TRV 5-461.7 Self-monitoring equipment3.63 NRS 1-40.1

Low-level limiter yes 1.4 yes 4.3.1 NRG 16-36 / NRS 1-9 TÜV WB/WR 04-370with control/ 1.8 5.7.1 Self-monitoring equipment EG 01 202 931-B01-High level 3.4 4.5.2 with automatic routine testing 0075

Feedwater yes 1.8 yes 4.5.2 NRGS 16-1 TÜV WRB 01-388controller with 3.4 5.5 Compact system forhigh-level alarm 5.6.1 on-off control

5.6.2 NRG 16-42 / NRS 1-42 TÜV WR 03-399Bus-based on-off control

ER 56 / NRS 1-5 TÜV WR 03-302On-off control - discontinued -

NRGT 26-1 TÜV WR 02-391Compact system forcontinuous monitoring,current output 4...20 mA

NRG 26-40 / NRS 2-40 TÜV WR 03-399Bus-based on-off controllerwith adjustable switchpoints

NRG 26-21 / NRS 2-1 TÜV WR/WS 04-317On-off control - discontinued -with adjustable switchpoints

NRG 26-40 / NRR 2-40 TÜV WR 03-399URBBus-based modulatingcontroller withadjustable limits

Feedwater yes 1.4 yes 4.5.1 NRG 26-21 / NRR 2-1 TÜV WR 04-317controller with 3.4 5.5 Modulating controlhigh-level alarm 5.6.1 - discontinued -

5.6.2 NRG 26-21 / NRR 2-2 TÜV WR 01-320Modulating controlwith adjustable limits- discontinued -

LD 144 TÜV WRS 01-324

Separate yes 1.8 5.6.2 NRG 16-4 / NRS 1-2 TÜV WR high-level alarm »72h« 5.1 Conventional design

NRG 16-12 / NRS 1-8 TÜV approvalSelf-monitoring equipment 01-91-0112with automatic routine testing

NRG 16-41 / NRS 1-41 TÜV·SWB/SHWS·02-403Self-monitoring equipment EG BAF-MUC 02 02with automatic routine testing 103881 002

According to TRD regulations you may only combine low-level limiters with level controls or high-level alarms.

Type Approvals at a Glance

GESTRA Boiler controls acc. to TRD 604, sheet 1, 24/72 hrs or EN 12953, part 6TÜV, EC Type Approval Revised: February 2004

TRD 604 EN 12953, part 6

Function required recommended Section required recommended Section Equipment Type approval no.

Safety yes 1.6 yes 4.4 TRG 5-6.. / TRV 5-40 SWB/SHWS 03-413temperature 1.7 5.7.2 PT 100 EG BAF-MUC 03 07 limiter 3.6.3 NRS 1-40.1 103881 004

Safety yes 1.7 yes 5.7.2 TRG 5-5.. / TRS 5-6 STW (STB) 985 03 Stemperature 1.6 PT 100 EG 01 202 931-B-01-limiter 0008

3.6.3 4.4 TRG 5-.. / TRS 5-7 STW (STB) 986 03 SThermocouple type K EG 01 202 931-B-01-

0007

Safety pressure yes 1.3 yes 5.7.2 DSF ..F 001 TÜV DWFS (SDBFS)limiter 3.6.4 Self-monitoring equipment 00-332

Conductivity yes 5.2 LRG 16-4 / LRS 1-5 not available(TDS) control for manual temperatureboiler water*) compensation TÜV approval

Automatic optional yes 2.1 yes C 1.8 LRG 16-4 / LRS 1-5 not requiredcontinuous boiler 4.8 On-off controlblowdown LRGT 16-1 / KS 90 TÜV·WÜL·01-003system*) Three-position stepping EG BAF-MUC 01 04

control, automatic 105620 001temperature compensation

Automatic optional yes 5.2 yes C 1.8 LRG 16-4 / LRR 1-5 / not availablecontinuous boiler URS 2blowdown yes On-operation-offwith signalling of »72h« manuel temperaturelimit levels *) 1) compensation

LRGT 16-1 / KS 90 TÜV·WÜL·01-003Three-position stepping EG BAF-MUC 01 04control, automatic 105620 001temperature compensationMax. limit

LRG 16-40 / LRR 1-40 TÜV·WÜL· 02-007Bus-based continuous boiler EG BAF-MUC 02 03blowdown, three-position 103881 003stepping control, automatictemperature compensationMax. limit

Automatic optional yes 2.1/5.2 yes 5.3.1 TA / MPA not requiredintermittent 4.8 LRR 1-40 / MPAboiler blowdown

Conductivity yes 2 LRG 16-4 / LRS 1-6 not available(TDS) control »72h« 4.8for make-up 5.2water*)

Residual hardness yes 5.2of make-up water »72h«(process titration)*)

Condensate yes 2.1/4.8 yes 5.6.3 OR 52-5 / -6 TÜV·WÜF·02-009monitoring:

oil and turbidity »72h« 5.2detection*) 2 detectors

Contamination yes 2.1/4.8 yes 5.6.3 LRG 12-1 / LRT 1-6 not availabledetection of acids, 5.2 URS 2alkalis etc.*)

B

87

Type Approvals at a Glance

Explanatory notes:

*) Approximate values and limits according to TRD 611 / EN 12952-12 and EN 12953-101) Combining continuous boiler blowdown and limit control precludes the need for pure limit signalling.

T.D.S. = Total Dissolved Solids

GESTRA Boiler controls acc. to TRD 604, sheet 1, 24/72 hrs or EN 12953, part 6TÜV, EC Type Approval Revised: February 2004

88

Type Approval Nos. at a Glance

Classification societies formarine applicationsGL Germanischer LloydLR Lloyd's RegisterSee BG See-BerufsgenossenschaftRINA Registro Italiano NavaleNKK Nippon Kaiji KyokaiABS American Bureau of ShippingKR Korean Register of ShippingBV Bureau VeritasDNV Det Norske veritas

Safety

Measured quantityW = WaterT = TemperatureD = Pressure

FunctionB = LimiterR = ControllerS = SwitchW = Detector

Year of approvalor extension

VdTÜV Bulletin

T Ü V S W B 0 2 4 0 3Type Approval Number Code

Function Equipment Type Approval NumberWater-level controller with NRGS 16-1S GL99250-96 HHhigh-level alarm Compact system for LR 98/20075

on-off control RINA No ELE/30298/1NRGT 26-1S GL 99249-96 HHKS 92-1 LR 98/20074NRS 2-3 RINA No ELE/30298/2Compact system for modulating control, KR HMB06190-MS002current output 4...20 mA DNV A-8394

Water-level limiter NRG 16-11S LR 98/20076NRS 1-7 GL WB-93-349001Self-monitoring equipment with RINA No ELE/95695/1automatic routine testing KR HMB06190-MS002

NKK 02A012Combination electrode NRG 16-38S LR 01/200261 Water-level limiters NRS 1-7 GL 40 601 - 01 HH

Specification see below ABS 01-HG227959-PDACombination electrode NRG 16-39S KR HMB06190-MS0022 Water-level limiters NRS 1-7 (2x) NKK 02A013

Self-monitoring equipment with automatic DNV A-8394routine testing combined with compact BV 11400/A1 BVsystem for continuous monitoringcurrent output 4...20 mA

Safety temperature limiter TRG 5-5../TRS 5-6 GL 99251-96 HHLR 00/20051

Abbreviations for temperaturecontrol equipment: STW = Safety temperature controller(STB) = Safety temperature limiter designed

with interlocking facilityTW = Temperature controller

(2x)

(1x)

GESTRA-Kesselsicherheitssystem

Wago - I/ORegeln/Steuern

NRS1-40.1(NW, HW*, STB)

LRR 1-40 NRS 1-41*

TRV 5-40

NRS 1-40/NRS 1-40.1

* erfolgt über HW ebenfalls die Brennerabschaltung kann auf den separaten NRS 1-41 verzichtet werden.

B

89

Spector BUSWith these systems, proven technology in thedesign of electrodes has been alloyed with innovative new level detection and evaluationtechniques: All level electrodes feature nowspecial electronic sensor units which, via a businterface, can exchange data automatically withlevel controllers or higher-level control systems. The next era in liquid level monitoring and controlhas dawned.

Features and Benefits of Spector BUS● Patented thermal barrier in cylindrical body

above electrode flange● Terminal box equipped with excess

temperature fuse (85 °C)● Freely accessible connecting terminals● Large terminal box makes for easy installation● Standardized response sensitivity ≥ 0.5 µS/cm

simplifies stocking and spare part inventories● Optimum system adaptation/extension without

any additional wiring● Reduced installation effort and material costs,

since only a single four-core cable is requiredbetween boiler and control cabinet

● Active cable monitoring through message identi-fication for error detection and prioritisation ofmessages in the event of low-level alarm

Basics

● Reduced cost of control cabinet– only one PG thread– only five input terminals– only one cable in control cabinetfor all sensing units

● Length of cable between sensor and controller125 m; max. cable length 1000 m

● Easy to integrate in visual display and automa-tion systems

● Thanks to increased functionality of controllersless component parts required

● Limiter– Two electrodes but only one controller– Switch-selectable one/two-electrode system

(emergency operation)– Instantaneous indication of low level by

separate, flashing diode as soon as theliquid falls below low level (simplifies routinetesting)

– After time delay has elapsed, the LEDs stopflashing and are permanently illuminated

– Separate, instantaneous signal output for lowwater level

– Self-test routine combined with automaticself-checking of respective output relay con-tacts

● GESTRA Boiler Protection System– up to 4 limiters for one control unit

(2 x LW, HW, safety temp. limiter – in anycombination).

● Controller– Less time-consuming calibration of measur-

ing range; 100 % can be adjusted at level50 %.

– No additional time relays required for systemoptimization. Built-in time delays individuallyadjustable between 1...25 sec. for each con-tact and position.

– Reduced wiring effort for control cabinet:Only a single four-core cable is required forwiring the panel-mounted control terminaland display unit, since all switchgear controlsremain on the mounting panel where theirfunctions are required.

– One operating and control terminal for allconnected bus nodes.

– The control terminal features permanentlevel and conductivity indication according toTRD 401 (second water-level indication) and draft of rules concerning conductivity limiters.

– Easy parameterization of controls on controlterminal or PC.

MAX (HW)MIN (LW)

100 %

MIN0 %

Self-monitoringconductivity level electrodeNRG 1...-41/.-41.1 24VDC< > bus signal

Capacitancelevel electrodeNRG 26-40 24VDC< > bus signal

2 Self-monitoringconductivity level electrodes NRG 1...-40 24VDC< > bus signal (2x)

ConductivityelectrodeLRG 16-40 24VDC< > bus signal

Visual display unit 1 Level switchNRS 1-40 / NRS 1-40.1with automatic testing routine (in control cabinet)

Level switchNRS 1-41(in control cabinet)

Control terminal and display unit URB 2(panel mounting)

Level controller NRR 2-40(in control cabinet)

Level controller NRS 2-40(in control cabinet)

Blowdown controllerLRR 1-40(in control cabinet)

MAXValve OPEN/CLOSED

TemperaturesensorTRG 5-6...

GESTRA Boiler Protection System

WAGO - I/OControl

NRS 1-40.1(LW, HW*, Temp.)

* The system can do without the separate NRS 1-41 if the burner is switched off by the high level function

90

Level Limitation(Low and High Level Alarms)

Low-Level LimiterControl unit NRS 1-40 in conjunctionwith one level electrode type NRG 16-40, 17-40, 19-40 or 111-40 constitutes a high-integrity self-monitoring low-level limiter with periodic self-checking andautomatic routine testing of outputrelay contacts.

■ Low-level alarm with oneswitchpoint.

The equipment detects min. waterlevel (low-level alarm).

Application in steam and pressurizedhot-water boilers according to TRD 401, TRD 602 and TRD 604,EN 12952/..53.

Control unit NRS 1-40 in conjunctionwith two level electrodes type NRG 16-40, 17-40, 19-40 or 111-40 constitutes a high-integrity self-monitoring low-level limiting system with periodic self-checking. The control unit featuresthe following function:

■ Low-level alarm with twoswitchpoints.

The equipment combination detectslow-water level (low-level alarmsystem).

Application in steam and pressurizedhot-water boilers according to TRD 604, sheet 1 and 2 (operation

without constant supervision for 24/72 hrs.).

The electric device complies with theregulations for safety circuits to DIN VDE 0116 (prEN 50156)

The liquid level data are transferredfrom the electrode NRG 1...-40 to thecontrol unit via CAN bus, using theCANopen protocol.

The safety temperature limiter typeTRG 5-6./TRV 5-40 can be added tothe system; for more information referto page 108.

Level Limitation

Low-Level LimiterControl unit NRS 1-41 in conjunctionwith one level electrode type NRG 16-41, 17-41 or 19-41 constitutes a high-integrity self-monitoring high-level alarmsystem with periodic self-checkingand automatic routine testing of output relay contacts. Function:

■ High-level alarm

The equipment detects the max.water level.

Application in steam and pressurizedhot-water boilers according to TRD 401, TRD 602 and TRD 604, EN 12952/..53.

The electric device complies with theregulations for safety circuits to DINVDE 0116 (prEN 50156).

The liquid level data are transferredfrom the electrode NRG 1...-41 to thecontrol unit via CAN bus, using theCAN open protocol.

High-Level-Alarm

DescriptionThe control unit NRS 1-40.1 incombination with two level electrodesNRG 1.-40, the temperature sensorTRG 5-6../TRV 5-40 and, if required,the level electrode NRG 1.-41.1constitutes a self-monitoring boilerprotection system with periodic self-testing and continuous monitoring ofthe output relays. The control unitfeatures the following functions:

■ Low-level alarm with twoswitchpoints

The equipment combination detectsthe min. water level (low-level limitingsystem).

■ Safety temperature limiter

The equipment combination detectsthe max. allowable temperature.

■ High-level alarm

The equipment combination detectsthe max. water level.

Application in steam and (pressuri-sed) hot water plants in accordancewith TRD 604, sheet 1 and sheet 2(24/72 hrs operation).

The electrical equipment meets therequirements of the regulations forsafety circuits according to DIN VDE 0116 (prEn 50156).

The data of the sensors are trans-ferred to the control unit via CANbus,using the CANopen protocol.

Boiler Protection System

B

91

Self-monitoring boiler protection systemTRD 604 24h/72h / EN 12952/53

Self-monitoring low-level alarm system to TRD 604(24/72 hrs without constant supervision)/EN 12952/53

Level Limitation(Low and High Level Alarms)

High-level alarmTRD 604, 72h

Optional: NRS 1-4.special voltage: 115 V, 50..60 HZ

Type PN Stock code Pty.

NRG16-40 1000 mm 3514042 2TRG 5-65 2671611TRV 5-40 40 2691040NRG 16-41.1 500 mm 3524141NRS 1-40.1 230 V 3222841



Type PN Stock code

NRG16-40 1000 mm 40 3514042NRS 1-40 230 V 3222541

NRG17-40 1000 mm 63 3544042NRS 1-40 230 V 3222541

NRG19-40 1000 mm 160 3574042NRS 1-40 230 V 3222541

NRG111-40 1000 mm 320 3574142NRS 1-40 230 V

Type PN Stock code

NRG16-41 500 mm 40 3524041NRS 1-41 230 V 3222741

NRG17-41 500 mm 63 3554041NRS 1-41 230 V 3222741

NRG19-41 500 mm 160 3594041NRS 1-41 230 V 3222741

0525

0525

0525

Type approvalTÜV SWB/SHWS · 03-413EG BAF-MUC 02 02 103881 004TRG 5-6... / TRV see page 109.

Type approvalTÜV SWB/SHWS · 02-403EG BAF-MUC 02 02 103881 002

If supervision is limited, the system can beoperated with one electrode.

Type approvalTÜV SWB/SHWS · 02-403EG BAF-MUC 02 02 103881 002

Level electrodesNRG 16-40

Level switchNRS 1-40

Burnerprotection circuit

FlangeDN 50 mm

Lowlevel

Lowlevel

Level electrodeNRG 16-41


FlangeDN 50 mm

High level

Feed OFF orburner OFF

Level electrodeNRG 16-40

Level electrodeNRG 16-41.1

Level switchNRS 1-40.1

24 V, DC


FlangeDN 50

mm

FlangeDN 50

mm

TRV5-40

Lowlevel

Lowlevel

Highlevel

TRG 5-6.

Power 05

Function URB 1 URB 2

Display Graphic display 1/4 VGA, monochrom124 x 64 pixel, 58 x 40 mm 320 x 240 pixel, 115 x 85 mm

Colour display No Optional

Basic window Bar chart Numerical Bar chart Numerical

Level Level Level LevelConductivity Conductivity Conductivity

PressureTemperature

Operation Via push-button Via control knob

Navigation in the menu Via push-button Via control knob

Password protection (to avoid operating errors) No Yes

Software update No Yes, Flash

System freely expandable No Yes, software update

Connection for camera (e. g. local water level indicator) No Yes, colour display

92

Level Control

■ Level always within defined measuring range of electrode.

Use level electrode NRG 26-40 in combina-tion with level switch type NRS 2-40 orfurther system components. The level dataare transferred to the level switch or anyother system component via the CAN databus.

NRS 2-40Use level switch type NRS 2-40 in combi-nation with level electrode type NRG 26-40for level control and monitoring. The levelswitch has the following functions:

■ Four liquid levels with one switchpoint each

■ High-level alarm, first low-level alarm,pump ON, pump OFF, with one switchpointeach

The level switch NRS 2-40 can be optio-nally equipped with an actual value outputfor standard signal 4-20 mA.

The level data are transmitted from theelectrode NRG 26-40 to the level switch viaa CAN data bus.

If you want to connect a second NRS 2-40in order to establish additional switchpointsplease indicate this when ordering.

NRR 2-40Use level controller NRR 2-40 in combina-tion with level electrode type NRG 26-40 forlevel control and monitoring. The level con-troller has the following functions:

■ Two limit values with one switchpointeach (high-level alarm and first low-levelalarm)

■ Three-position or modulating controlwithin a predefined proportional band

■ All contacts feature time delaysadjustable between 1 – 25 sec.

■ Continuous level monitoring within defined measuring range of the electrode.

The NRR 2-40 features an optional outputfor standard signal 4-20 mA, which can beused for actual value and/or modulatingcontrol. The level data are transferred fromthe electrode NRG 26-40 to the levelcontroller via a CAN data bus.

URB 1 // 2The URB is a user-friendly control terminaland display unit for use with GESTRA CANbus systems. With the URB all standardfunctions of the CAN bus system can beeasily called up and adjusted. Furthermore,the URB makes the parameterization of thecontroller very convenient: The switchpointsand the proportional band can be adjustedby means of the keypad regardless of theactual level. The energizing and de-ener-gizing times of the relays can becustomized for the individual switchpoints.

The LCD of the URB displays the following:

■ Current liquid level (second water level)(TRD 401, EN 12952, ...53)

■ Current conductivity value (TSD control)

■ Proportional band of controller (NRR 2-40), (LRR 1-40)

■ Switchpoints

■ Position and value of switchpoint LOW LEVEL

■ Position and value of switchpoint HIGH LEVEL

■ Position of set point (NRR 2-40),(LRR 1-40)

■ Deviation

■ Valve position

■ Manual/automatic operation

■ Current CAN bus address

■ Indication of high/low level alarm

■ Temperature (URB 2)

■ Pressure (URB 2)

Description1. Conductivity MeasurementNRG 16-42The level electrode type NRG 16-42 worksaccording to the conductivity measurementprinciple. With the NRG 16-42 a maximumof four levels can be signalled in conductiveliquids:

■ Four levels with one switchpoint each


Use level electrode NRG 16-42 in combina-tion with level switch type NRS 1-42 orother system components. The level dataare transferred to the level switch or anyother system component via a CAN databus.

NRS 1-42Use level switch type NRS 1-42 in combi-nation with level electrode type NRG 16-42for level monitoring. The level switch has the following functions:

■ Four levels with one switchpoint each


The level data are transferred from theelectrode NRG 16-42 to the level switch viaa CAN bus.

2. Capacitance MeasurementNRG 26-40The level electrode NRG 26-40 worksaccording to the capacitance measurementprinciple. The NRG 26-40 is used for detecting andsignalling different levels in conductive andnon-conductive liquids:

Differences between URB 1 and URB 2

B

93

AnschlussflanschDN 50

On-off control with adjustable switchpointsSpector BUS system


Modulating control with high and first low level alarmSpector BUS system


On-off control with fixed switchpointsSpector BUS system

Level Control

Type PN Stock code

NRG16-42 L=1000 mm 40 353 42 48NRS 1-42 230 V 322 22 41

Optional: URB VDU 338 10 43

Optional 115 V, 50..60 Hz

Type PN Stock code

NRG26-40 H=1000 mm 40 348 40 47NRS 2-40 230 V 322 30 41


NRS 2-40 optional 115 V, 50..60 HzActual value output 4-20 mA .57Second device .59

Type PN Stock code

NRG26-40 H=1000 mm 40 348 40 47NRR 2-40 230 V 322 50 41


NRR 2-40 optional 115 V, 50..60 HzActual value output 4-20 mA 57Output for continuouscontroller 4-20 mA .58

Type approvalTÜV · WR · 03-399



Multiple level electrodeNRG 16-42 1" BSP Level switch

NRS 1-42

High-level alarm

First low-levelalarm

High levelPump OFFPump ONFirst low-level alarm

Connecting flange DN 50 mm

Control terminal and display unit URB 1 (2) (optional)


Level electrode NRG 26-403/4" BSP


High-level alarm

First low-levelalarmConnecting

flange DN 50 mm

Control terminal and display unitURB 1 (2) (optional)

Level controller NRR 2-40Level electrode NRG 26-40 3/4" BSP

High levelLevel controlFirst low-level alarm

Connecting flange DN 50 mm

Control terminal and display unit URB 1 (2)

High-level alarm


Feedwatercontrol valve V 725DN 50 mm

94

Level Control

Spector CompactWhere formerly two devices wererequired, all you need now is just a single Spector compact. As acombined level electrode andcontroller, it presents the economicalalternative for monitoring liquid levelsin small installations and steamboilers.

Since the entire electronic control unit is located within the terminal box,the transmission path is short andreliability is higher than for comparablesystems.

Features and Benefits■ Patented temperature barrier in

cylindrical body above electrodeflange

■ Terminal box equipped with excesstemperature fuse (102 °C)

■ Level electrode and controller inone unit

■ Optimum system adaptation thanksto modular design

■ No mounting of component parts incontrol cabinet– No space requirements– No installation– No wiring– Easy planning

■ No special cable required for wiringsensing unit to control cabinet

■ Simplified logistics– Only one item of equipment has

to be ordered and checked uponreceipt

– Reduced inventory requirementsand simplified stocking

– No onerous assignment procedures of individual component parts to mechanicalengineering dept. (boiler) andmeasurement and control engineering dept. (control cabinet)

■ Interchanges with old float-operatedsystems since they have their output contacts also integrated inthe terminal box

System Description NRGS 1. . . -1The compact system NRGS 11-1 orNRGS 16-1 works according to theconductivity measurement principle.With the NRGS 1...-1 a maximum offour levels can be signalled inconductive liquids:

■ High-level alarm, first low-levelalarm, pump ON, pump OFF, withone switchpoint each.

The NRGS 1...-1 has a level switchintegrated in the electrode case forthe control of all functions. Anexternal switching device is notrequired.

System Description NRGS 1. . . -2The compact system NRGS 11-2,NRGS 16-2 works according to theconductivity measurement principle.With the NRGS 1...-2 a maximum ofthree levels can be signalled inconductive liquids:

■ Low-level alarm, pump ON, pumpOFF, with one normally opencontact.

The NRGS 1...-2 has a level switchintegrated in the electrode case forthe control of all functions. Anexternal switching device is notrequired.The NRGS 1...-2 has two electrodetips for the detection of low-waterlevel. The low-level alarm is signalledvia two separate switching channels.

System Description NRGT 26-1The compact system NRGT 26-1works according to the capacitancemeasurement principle. The NRGT 26-1 is used for signallingdifferent levels in conductive andinsulating liquids.

■ Modulating control ensures that theliquid level is always within thepredefined measuring range of theelectrode.

The NRGT 26-1 has a level transmitter integrated in the electrodecase which produces a standardanalogue output of 4 – 20 mA. An external switching device is notrequired.

Pump Control Units

Standard features Type NRSP 1-11 NRSP 1-12

Pump protection against running dry ● ●

Pump protection against running dry and high-level alarm – –

Time-dependent pump switching device – ●

Switching-on of stand-by pump – –

Collective malfunction alarm (visible) ● ●

Collective malfunction alarm (visible and audible) – –

Volt-free contacts ● ●

Remote level indication – –

B

95

Compact system for on-off level control with fixed switchpoints

Compact system for water-level limitation and on-off control

Compact system for modulating level control

Pump control

NRGS 11-1 1" BSPControl cabinetNRSP.. .

Optional for twopumps

Equipment Stock codeNRGS 11-1 / NRSP 1-11 353 20 48 / 326 11 40 .. ..NRGS 11-1 / NRSP 1-12 353 20 48 / 326 12 40 .. ..L = 1000 mm/H = 1000 mm

Type PN max. Stock codelength

suppliedNRGS 11-1 6 1000 353 20 48

1500 353 20 54NRGS 16-1 40 1000 353 30 48

1500 353 30 54

Optional 24 V, 50..60 Hz .51

Type PN Max. Stock codelength

suppliedNRGS 11-2 6 1000 353 21 48

1500 353 21 54NRGS 16-2 40 1000 353 31 48

1500 353 31 54Optional 24 V, 50..60 Hz .51


suppliedNRGT 26-1 40 300 348 10 40

400 348 10 41500 348 10 42600 348 10 43700 348 10 44800 348 10 45900 348 10 46

1000 348 10 471100 348 10 481200 348 10 491300 348 10 501400 348 10 511500 348 10 522000 348 10 53

Optional 24 V, 50..60 Hz .55115 V, 50..60 Hz .5624 V, DC .57

Level Control

Type approvalTÜV · WRB · 01-388

Type approvalTÜV · WR/WB · 02-392


SPS

Water-level controller with two additional limitcontacts, power supply115/230 V, 50 Hz.

NRGS 11-1NRGS 16-11" BSP

Pump ON/OFF

High-level alarm

First low-level alarm

High-level alarm

Pump OFF

Pump ON


Low-level alarm and liquid level controller, power supply 115/230 V, 50 Hz.

NRGS 11-2NRGS 16-21" BSP

Pump OFF

Pump ON

Low-level alarm (redundancy)

Pump ON/OFF

Burner protectioncircuit

ResetTest

Modulating level control with currentoutput 4 – 20 mA,power supply115/230 V, 50 Hz.

NRGT 26-13/4" BSP

PLC

4 - 20 mA

100 %

0 %

KS 92-1

High-level alarmControl valve

Pump protection

96

Self-Monitoring Low/High-Level Alarms– Conventional Design –

Description

Low-level limiterNRG 16-11/NRS 1-7 bApplication and Purpose

Use self-monitoring low-water limiterwith periodic self-checking type NRG 16-11 in combination with levelswitch NRS 1-7 in steam boilers andhot-water plants. The equipmentmeets the German regulations for usein steam boiler plants operatingwithout constant supervision (TRD 604 sheet 1 and 2).

For boiler operation acc. to TRD 604two self-monitoring low-level limitersare required and for boiler operationto TRD 602 only one self-monitoringlow-level limiter is necessary.

The level electrode NRG 16-11 canbe combined with the followingGESTRA systems:

■ NRG 26/NRR 2-2(modulating level control)

■ NRG 26/NRR 2-1(modulating level control)

Low-level limiter and controllerNRG 16-36/NRS 1-9Application and Purpose

Level controller and self-monitoringlow-water level limiter with periodicself-checking feature to be used inconjunction with level electrode NRG 16-36 for on-off boiler feedwatercontrol, high level detection (alarm)and low-water level limiting (min. levelalarm). Application in steam andpressurized hot-water boilerinstallations in accordance with TRD 602 and TRD 604, sheet 1 and 2.

Switching Controller NRS 1-9 b

Plug-in unit in plastic case forinstallation in control cabinets. The terminals are accessible afterunplugging the unit from its base. The plug-in unit may be snapped ontoa 35 mm supporting rail or screwedinto position on a mounting panel.Field enclosures for several plug-inunits are available on request.

■ NRG 26/NRS 2-1(on-off level control)

■ ER 56/NRS 1-5(on-off level control)

■ NRG 16-4/NRS 1-2(high-level alarm)

■ NRG 16-12/NRS 1-8(self-monitoring high-level alarm)

The level electrode NRG 17-11 can be combined with the followingGESTRA systems:

■ NRG 17-12/NRS 1-8 (high-levelalarm)

The level electrode NRG 19-11 can be combined with the followingGESTRA systems:

■ NRG 19-12/NRS 1-8 (high-levelalarm)

The installation of two low-levelalarms in one standpipe is notpermissible according to TRD.

High-Level Alarms

Description

“Conventional Design”NRG 16-4/NRS 1-2Application and Purpose

Use in combination with level switchNRS 1-2 for water-level limiting (low-level alarm), on-off liquid control andsignalling of levels of conductiveliquids. The stainless steel design isparticularly suited for aggressivefluids. For vessels and steam boilersup to PN 40 with level switch inaccordance with TRD 604 (boileroperation without constant super-vision).

Sensing unit for high-level alarm andlevel control.

Design

The level electrode NRG 16-4 is available with screwed connection 3/8" BSP

Material: X6CrNiMoTi17-12-2 (DIN no. 1.4571)

The electrodes are supplied indifferent lengths (see data sheet). For switching levels between thesedimensions the electrode tip can be cut to length as required. Wiring to the electrode is effected bya four-pole connector.

“High-Integrity Design”NRG 16-12/NRS 1-8Application and Purpose

Use in combination with level switch NRS 1-8 as self-monitoring high-levelalarm with periodic self-checkingaccording to TRD 604 sheet 1 and 2for high-water level detection (high-level alarm) in steam and pressurizedhot-water boilers.

Design

The high-level limiting systemcomprises level electrode NRG 16-12, NRG 17-12 or NRG 19-12 and levelswitch NRS 1-8.

The level electrodes NRG 16-12, NRG 17-12 and NRG 19-12 consist ofa measuring electrode fitted in abody. The electrode is insulated byspecial insulating seals.

The pressure-tight connection of theelectrode is effected coaxially with acontact ring and a stud. A system ofcompression springs in the electrodebody ensures sufficient sealing forcesat the insulating seals, even if tem-peratures vary. The stud is insulatedby a PTFE foil. Contact ring and bodyare connected to the four-poleconnector base by PTFE insulatedwires. The level electrode is availablein various lengths up to 1500 mm.Observe mounting instructions (seeexamples of installation). The system(electrode + level switch) complieswith the regulations concerningprotection circuits for firing equipmentof furnaces in accordance with DIN57116/VDE 0116

B

97

Self-Monitoring Low/High-Level Alarms– Conventional Design –

DN 50Anschlussflansch

Self-monitoring low-level limiter

Low-level limiter, on-off control and high-level alarm

Combination electrode NRG 16-36 11/2" BSP


High-level alarm (conventional design)

Level electrode NRG 16-4 3/8" BSP


Self-monitoring high-level alarmLevel electrode NRG 16-12 3/4" BSP

Optional voltages: NRS 1-7, NRS 1-9Special voltage: 115 V, 24 V, 50..60 HZ

Optional voltages: NRS 1-2, NRS 1-8Special voltage: 115 V, 24 V, 50..60 HZ

Type PN Stock code

NRG16-11, L = 1000 mm 40 3511042NRS 1-7 230 V 3232541

NRG17-11, L = 1000 mm 63 3541042NRS 1-7 230 V 3232541

NRG19-11, L = 1000 mm 160 3571042NRS 1-7 230 V 3232541

NRG111-11, L = 1000 mm 320 3571142NRS 1-7 230 V 3232541

Type PN Stock code

NRG16-36, L = 1000 mm 40 3581047NRS 1-9 230 V 3232841

Type PN Stock code

NRG 16-4, L = 1000 mm 40 3441241NRS 1-2 230 V 3231441

Type PN Stock code

NRG16-12, L = 500 mm 40 3521041NRS 1-8 230 V 3232741

NRG17-12, L = 500 mm 63 3551041NRS 1-8 230 V 3232741

NRG19-12, L = 500 mm 160 3591041NRS 1-8 230 V 3232741

High-Level Alarms – Conventional Design

0525

0525

Type approvalTÜV · WB/WR · 05-354EG 01 202 931-B-01-0077

Type approvalTÜV · WB/WR · 04-370EG 01 202 931-B-01-0075


Test approval no.01-91-0112

Level electrode NRG 16-11 3/4" BSP


Level switchNRS 1-7

Low level

DN 50 mmConnecting flange


Level switchNRS 1-9

High levelLevel controlLow level

High-levelalarm(pump OFF)



High levelLevel switchNRS 1-2

Pump OFF

High level


Level switchNRS 1-8

Pump OFF

98

Modulating Level Control– Conventional Design –

Level control705 / KS 92-1Used in conjunction with µP controllertype KS 92-1 for modulating waterlevel control (pressure range > PN 40).

Can also be used as combinationelectrode together with limiters. The705 is a radar-based level transducer.The reflexion time is a function of thelevel and will be transformed into a4...20 mA standard output signal bythe measuring transducer.

Level controlLD 144 / KS 92-1Used in conjunction with µP controllertype KS 92-1 for modulating waterlevel control (pressure range > PN 40).

The intelligent buoyancy transmitterworks on the Archimedean buoyancyprinciple. The buoyancy is proportional to the liquid level andtransformed by the measuring transducer into the standard outputsignal 4...20 mA.

Level controlNRG 26-21/ NR. 2-1This water-level controller is to beused in conjunction with one levelelectrode NRG 26-... and one limitswitch NRS 2-1.

A second max.-min. limit switchenables establishing additionalswitchpoints such as high level alarmand first low-level alarm.

Using level transmitter NRT 2-1 anddisplay unit URA makes remote levelindication possible.

The advantage of this switchingcontroller lies in customizedswitchpoints which can be adjustedduring operation and thesimultaneous use of several controlunits.

Description

Level controlNRG 26-21/ NRR 2-2eThis modulating level control systemcomprises the level electrode NRG 26-... and the level controller NRR 2-2.

The level-dependent actual valuesensed by the electrode iscontinuously compared by thecontroller with the adjusted setpoint.Any deviation is immediately detectedand a signal is transferred to themotorized feedwater control valve inorder to regulate the flowrateaccordingly.

The level controller is of the proportional type and provided with a manual control facility. In addition itfeatures a signal for high-level alarm,first low-level alarm and a currentoutput for the display unit URA usedfor remote level indication.

The switchpoints are adjustable withinthe whole measuring range of thelevel electrode.

B

99

Modulating Level Control– Conventional Design –



Modulating control with adjustable switchpoints

Control valve with isolating bypass valve, strainer, non-return valve and feedback potentiometer

On-off control with adjustable switchpoints

NRG 26-21

Pressure rating PN 40



RK

GAV 811 with throttling plug

GAV 811 GAV 811GSF

Control valve V 725

4..20 mA

100%

0%

Continuous level monitoring for high-pressureapplications

Continuous level monitoring by means of intelligentbuoyancy transmitter, output 4-20 mA, compl. withcover flange kit.

LD 144(705)

50%

High-Pressure Level Control / Pump Control

Equipment Stock code Qty.NRG 21-11 H = 1000 mm 342 12 47NRS 2-1 230 V 323 17 41 2NRT 2-1 230 V 330 14 41URA 2 230 V 331 13 44

Equipment Stock codeNRG 26-21 H = 1000 mm 345 21 47NRR 2-2e 230 V 324 13 43URA 2 230 V 331 13 44

Equipment Boiler capacity t/h DN3 x GAV 811, < 2.5 20Control valve V725, < 8.0 40GSF, RK < 16.0 50230 V, 50 Hz < 28.0 65

Optional voltages: NR. 2-., URA.Special voltage: 115 V, 24 V, 50..60 HZ

For other nominal sizes refer to pagesGAV 75GSF 73RK 30 – 39V 725 63

Type PN Design Measuring range

LD 144 100 DN 80 2) 350

24 V, DC DIN 3526 500

Form E 1000

160 DN 80 2) 350

DIN 2696 500

Form L 1000

705 100 DN 50 600

24 V, DC DIN 2696 800

Form E 1000

160 DN 50 600

DIN 800

Form E 1000


KS 92-1

PLC

Level probeNRG 21-11

Pump ON

Pump OFF

DN 50 mm


Level transmitterNRT 2-1

Remote level indicator

URA 2

Limit switch NRS 2-1

Limit switch NRS 2-1

Connecting flange

High-level alarm



High levelLevel controlLow level Feedwater

control valve V 72..

Level controllerNRR 2-2

High-level alarm


Remote level indicator URA 2

100 %

0 %

4..20 mA High-level alarmControl valve

100

Accessories for Liquid-Level Alarms Fitted in External Level Control Pots

Stop Valve GAV PurposeFor isolating and throttling non-corrosive and aggressivegases, steam and liquids, e. g. air, steam, gas, oil etc. in allindustries.Features■ Maintenance-free■ Safety stuffing box■ Detachable locking device for all sizes■ Rising stem design■ Position indicator (detachable)■ Optional limit switch(es)■ Outside screw■ Rolled spindle thread■ Asbestos-freeY-type drain valve 17/213

SRL-63PurposeIn combination with external low-level alarms for monitoringthe periodic purging of level pots or, generally, as timer formonitoring any periodic function.Particularly suitable for steam plant operation to TRD602/604.

DesignAll-electronic logic unit SRL-63 for continuous monitoring,with three LEDs (stand-by, purging, switching off) with casefor mounting on walls.

OperationThe monitoring equipment with Mini-PLC periodicallyactivates a memory for a defined period of time. During thisperiod the memory registers all functional operations, e. g.purging of the level pot. If this signal is not received withinthe fixed period, the plant is shut down. The plant is alsoshut down if the purging process lasts for more than fiveminutes.

DescriptionLevel pot for external installation of level electrodes

Additional equipment for the installation ofliquid-level alarms

Feature Value Designation MF 206-1STT 118 P / 214 P / 312 G >Component Level pot MF

▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲

Design: 1 Side connection 10(side connection) 2 Side connection 20

4 Side connection 90°r 404 Side connection 90°l 414 Side connection 180° 424 Side connection 90°r+90°l 60

Nominal pressure PN 16 4PN 40 6PN 63 7PN 160 9

Size 88.9 1114.3 2

Material Steel type ST 35.8 SHigh-temperature steel 15 MO 3 WAustenitic A

In accordance with AD-Bulletin ATRD TOthers S

Approved by TÜV TWorks inspector WOthers S

Connection 3/4" BSP 114 G(N 1) 1" BSP 115 G

11/4" BSP 116 G11/2" BSP 117 GDN 50 mm 118 PDN 80 mm 120 PDN 100 mm 121 P

Boiler connection DN 15 mm 212 P(N 2) DN 20 mm 214 P

DN 25 mm 215 PDN 50 mm 218 P

Drain connection 1/2" BSP 312 G(N 3) DN 20 mm 314 P

DN 25 mm 315 PSide connection DN 20 mm 414 P not required in this example3 + 4 (N 4) DN 25 mm 415 PSide connection DN 20 mm 514 P not required in this example5 + 6 (N 5) DN 25 mm 515 P

Additional specificationCentre distance 1500 ME 1500 Centre distance ME = 1500 mmLength (top) e. g. 230 Spec. > Length (top) = 230 (not < 190 mm)Length (bottom) e. g. 170 Spec. > Length (bottom) = 170 (not < 140 mm)Volume 11 l Spec. > 11 lSerial no. 12345 to 123460 Spec. > Serial no. = 123456 to 123460

Type code of level pots

▲▲

B

101

Accessories for Liquid-Level Alarms Fitted in External Level Control Pots

Accessories for liquid-level alarms fittedin external level control pots

GAV

GAV

GAV

Levelpot

NRG 26FlangeDN50 mm

Type DN/PNPressure/Temp. Ratings

Qty.Pmax tmax

MF 2061 STT 1)GAV 811, DN 20 mm 40 32 bar 238 °C 217/213, 1/2" BSPMF 2071 STT 2)

63 60 bar 275 °CGAV 130, DN 25 mm 3MF 2091 STT 2)

160 75 bar 290 °CGAV 136, DN 25 mm 3MF 2091 WTT 2)

160100 bar 311 °C

GAV 136, DN 25 mm 96 bar 300 °C 31) Approval acc. to PED 97/23/EC, module A12) Approval acc. to PED 97/23/EC

Accessories for level controls fittedin an external level control pot

NRS

SRL

GAV

GAV

NRG

FlangeDN50 mm

Levelpot

GAV

Combination electrodes with self-monitoring level limiter

GAV

GAV

GAV

NRS

NRG NRG

Levelpot

FlangeDN100 mm

NRS


Qty.Pmax tmax

MF 2061 STT 1)GAV 811-II

20/40 32 238 °C2

GAV 811-ISRL 63MF 2071 STT 2)GAV 130-II

25/63 60 275 °C2


25/160 75 290 °C2

GAV 136-ISRL 63MF 2091 WTT 2) 100 311 °CGAV 136-II

25/16096 300 °C 2

GAV 136-I 96 300 °CSRL 631) Approval acc. to PED 97/23/EC, module A12) Approval acc. to PED 97/23/EC


Qty.Pmax tmax

MF 2062 STT 1)GAV 811-II

20/40 32 238 °C2


25/63 60 275 °C2


25/160 75 290 °C2

GAV 136-ISRL 63MF 2092 WTT 2) 100 311 °CGAV 136-II

25/16096 300 °C 2

GAV 136-I 96 300 °CSRL 631) Approval acc. to PED 97/23/EC, module A12) Approval acc. to PED 97/23/ECOptional SRL:Voltage 115 V, 24 V, 50..60 Hz

SRL

102

Level Probes and Control Units forVery High Pressure/Temperature Ranges

NRG 211In combination with level switch NRS 2-4 for indicating high-waterlevel and level switch NRS 2-5 forindicating low-water level at very highpressures and temperatures (up toPN 320, 550 °C).Application in draining systems ofconventional power stations and high-pressure steam boilers.

DesignThe probe works without any movingparts. The probe rod, which isinsulated by a ceramic tube, isinserted through a hole in the probeflange such that pressure-tight sealingis ensured. The ceramic tube isclosed at the lower end and coveredby a protection tube.The electronic control unit is housedin the terminal box. The wiring iseffected via a 6 pole connector withcrimp connection.

OperationThe principle of capacitance measurement is used to sense liquidlevels. The probe rod and the protection tube form a capacitor, withair or the particular liquid being thedielectric. In electrically conductiveliquids the probe insulation serves asdielectric. As the level rises or falls,the capacitance of this assemblychanges, is converted in the integral measuring transducer into a signal,and is then fed to the associatedelectronic control unit.

NRS 2-4The level switch NRS 2-4 is ananalogue electronic amplifier for thecapacitance electrode type NRG 211.In combination with this levelelectrode the unit can detect highwater level. In addition, the levelswitch evaluates possible malfunctionsignals coming from the electrode andmonitors the electrode supply cableand can therefore be used as part ofa controlled draining system in powerstations.

PRS 9The PRS 9 is an analogue/digitalcycling timer. In combination with upto four level switches type NRS 2-4and a position-controlled limit switchthe cycling timer can be used as partof a controlled draining system in apower station.Example of installationUse cycling timer PRS 9 only incombination with GESTRA levelswitches NRS 2-4.

NRS 2-5The level switch NRS 2-5 is ananalogue electronic amplifier for thecapacitance electrode NRG 211.In combination with this levelelectrode the unit can detect lowwater level. In addition, the levelswitch evaluates possible malfunctionsignals coming from the electrode andmonitors the electrode supply cableand can therefore be used as part of a minimum level monitoringsystem/low-level system.

URN 2The power supply unit type URN 2 incombination with up to four levelswitches and the cycling timer can beused as part of a controlled drainagesystem in power stations or for lowlevel indication.Example of installationUse the PSU type URN 2 only for thepower supply of a maximum of fourlevel switches type NRS 2-4 or NRS2-5 and the cycling timer type PRS 9.

B

103

Level Control for Very High Pressure/Temperature Ranges

Type Material PN Stock code Qty.NRG 211*) 1.5415 320 200 bar at 450 °C 350 100 130 ≤ DN 100

320 bar at 120 °C 350 100 140 > DN 1001.7380 200 bar at 500 °C 350 100 231 ≤ DN 100

320 bar at 120 °C 350 100 241 > DN 1001.4922 230 bar at 550 °C 350 100 332 < DN 100

320 bar at 120 °C 350 100 342 > DN 100URN 2 337 20 42NRS 2-4 HW 323 31 42 2PRS 9 336 10 42NRS 2-5 LW 323 32 42 2

*) with welding connection, nuts, bolts andseals for pipes ∅ > DN 100 mm

NRS 2-4(two)

NRS 2-4(two)

Malfunction(alarm)

Bypass steam trap BK

URN 2 PRS 9NRG 211

NRG 211

Control valve ZK

Mal-function(alarm)

Steamline

104

Level Electrodes and Controls for Marine Applications

DescriptionSteam boiler equipment for marineapplications has to comply with thesame requirements as those placedon land installations.


Self-monitoring low-level limiter

Level electrode NRG 16-11 S DN 50 mm

Self-monitoring low-level limiter andcontinuous level control

In addition to that further demandsregarding environmental conditionssuch as climate, vibrations etc. haveto be met.

The acceptance certificates are to beissued by the classification societyresponsible for the ship's acceptanceinspection.

Approvals for marine applicationsee page 88

Type PN Stock code

NRG16-11 S 1000 mm 40 3511442NRS 1-7 230 V, 15 s 323254153

NRG 16-38 SDN 100 mmConnecting flange

Type PN max. Stock codelength

supplied

NRG 16-38 S 40 779 3582044

884 3582045

989 3582046

1095 3582047

1513 3582051

NRS 1-7 230 V, 15s 323254153

DN 50Connecting flange

KS 92-1


Level switchNRS 1-7

Low level


Level switchNRS 1-7

Low level


B

105

Self-monitoring limiter andmodulating level control

Compact system for modulating level control

Modulating level control with currentoutput 4-20 mApower supply 230 V, 50 Hz.

Compact system for on-off level control with fixed switchpoints

Water-level controller with two additionallimit contacts, power supply 115/230 V, 50 Hz.


supplied

NRGS 16-1S 40 938 3534053

1438 3534056

Level Electrodes and Controls for Marine Applications


supplied

NRGT 26-1S 40 316 3211452

420 3211453

526 3211454

631 3211455

737 3211456

842 3211457

947 3211458

1053 3211459

1579 3211460

Optional 115 V, 50..60 Hz .52


supplied

NRG 16-39 S 40 779 3584044

884 3584045

989 3584046

1199 3584047

1513 3584051

NRS 1-7 2x 230 V, 15s 323254153NRG 16-39 SDN 100 mmConnecting flange

2x LW

KS 92-1

KS 92-1

SPS


Level switchNRS 1-7

Low level



NRGT 26-1 SDN 50 mm

PLC

NRGS 16-1 SDN 50 mm

Pump ON/OFF

High-levelalarm


High-level alarm

Pump OFFPump ONFirst low-level alarm

GESTRA Spector Bus

This future oriented concept offersyou the following advantages1. No overheating:◗ Patented thermal barrier in cylindrical body

above electrode flange◗ Terminal box equipped with electronic

temperature fuse◗ Patented connection arrangement◗ Practically unaffected by thermal conditions2. Easy installation and fast commissioning:◗ Control unit features freely accessible

terminals◗ Large terminal box makes for easy

installation3. Reduced costs:◗ Simplified stockkeeping and reduced spare

parts inventory◗ Only a single cable is required between

boiler and control cabinet◗ Reduced installation and material costs◗ Simplified wiring scheme reduces labour

costs◗ Only one PG thread ◗ Only five input terminals◗ Only one cable in control cabinet for all

sensing units◗ Fewer control units thanks to increased

functionality. Example: TRD 604: only 4instead of 7 items of equipment

◗ Optimum system adaptation without anyadditional wiring effort

4. Increased safety, reliability and availabilityof plant:

◗ Active cable monitoring. Cable can now bemore than twice as long

◗ Easy to integrate in visual display andintelligent automation systems

◗ Remote diagnosis and parameterisation◗ Interconnection of further systems thanks to

CANopen protocol

The universal control &operating unit URB With the URB 2 being the sole operatingunit for all systemsThere are two different types of URBavailable: The URB 1 constitutes aninsular solution, i. e. the keyboard is usedto enter the data for the level and con-ductivity switchpoints. If temperature andpressure values shall also be taken intoaccount, use must be made of the URB 2. The URB 2 is the equipment for acomplete bus system. For navigating andsetting the switchpoints a control knob isprovided, with data and messages beingindicated in clear text. Thanks to theFlash technology applied in the URB 2the system can be expanded by updatingthe software, making the URB 2 definitelya good investment in the future. Thestandard versions of both equipmenttypes offer the option of a second waterlevel indicator according to TRD 401 / EN 12952/..53 as well as continuoustemperature-compensated conductivityindication in accordance with VdTÜVBulletin WÜ 100.

Comparison URB 1 // URB 2

BUS-Technology. High-tech for enhanced power plant safety.

B


Page

Temperature Control .................................................................................. 108 – 111

ConductivityBasic Principles and Applications ............................................................................ 112Technical Specification ............................................................................................ 113

SPECTORbus/compactConductivity/Intermittent Boiler Blowdown ......................................................114 – 115

ConventionalConductivity Control with Manual or AutomaticTemperature Compensation ............................................................................116 – 117Conductivity Control with Manual or AutomaticTemperature Compensation and Condensate Monitoring ..............................118 – 119Ancillaries: Tee Pieces, Level Pots and Portable Measuring Instruments VRM .......................................................... 120 – 121

Continuous Blowdown Valves .................................................................. 122 – 123

Intermittent Blowdown Programme – Controlled Blowdown Systems .. 124 – 125

Intermittent Blowdown Valves ....................................................................126 – 127

Contamination Detectors for Condensate and Process LiquidsDetecting ingress of oil in condensate systems and marine installations ......128 – 129Detecting ingress of acids, alkalis, raw water ................................................128 – 129Digital indicator (ingress of oil in cooling water) ............................................ 130 – 131

Flowmeters .................................................................................................. 132 – 133

SPECTORcom/control............................................................................................134

108

Technical Data of Temperature Pre-Amplifier

Technical Data of Temperature Sensor

Temperature ControlBus

NRS 1-40.1Self-monitoring temperature switchwith periodic self-checking feature to be used in conjunction with aresistance thermometer type TRG 5-6.. and pre-amplifier TRV 5-40. The equipment operates as a safety temperature controller, or inconjunction with an external lock-outin accordance with VDE 0116 (EN50156) as a safety temperaturelimiter. An alarm is given as soon asthe temperature exceeds a presetlimit value. The TRV 5-40 featuresdigital indicators for the actual tempe-rature and switching-off temperature.

TRS 5-40The MIN/MAX temperature switch TRS 5-40 in combination withtemperature sensor TRG 5-63 andpre-amplifier TVRV 5-40 serves astemperature controller. Application insteam boilers, pressurized hot-waterplants operating without constantsupervision (TRD 604) as well as any other type of heat generator. The equipment raises an alarm when the preset MIN/MAX limit value is attained.

Examples of Installation■ Superheaters for steam boiler

plants operating without constantsupervision (TRD 604).

■ Superheater cascades with up to 4 steps

■ In pressurized hot-water plants astemperature limiter for thesecondary circuit in accordance with TRD 604 or 12952/..53.

■ Furnaces in accordance with DIN 30 683 up to 800 °C.

■ Control systems for product heatingor cooling

Type PNScrewed Connections

Welding stub Pt 100Max. Ambient Lengths avail-

BSP TRV.. . temperature temperature able L [mm]TRG 5-63 40 1/2" 5-40 – 1 400 °C 100 °C 100 to 400

TRG 5-64 40 1/2" 5-40 – 2 400 °C 100 °C 100 to 400

TRG 5-65 160 – 5-40 D 5 S 1 540 °C 100 °C 115

TRG 5-66 160 – 5-40 D 4 S 1 540 °C 100 °C 140

Accuracy class A

TRG 5-67 160 – 5-40 D 4 1 650 °C 100 °C 200

TRG 5-68 160 – 5-40 D 4 1 650 °C 100 °C 200

Accuracy class BPt 1000

TRG 5-69 40 1/2" CANopen – 1 400 °C 85 °C 160

TRG 5-70 160 – CANopen D 4 S 1 540 °C 85 °C 140

Technical Data of Temperature Switches/Controllers/IndicatorsType Outputs Control characteristic Mains supply Version Performance test in TÜV EC

Switchpoint 0/4-20 mA MIN MAX Δ T Standard b c e acc. with DIN 3440 approvalNRS 1-40.1 1 – – ● – 230 V ● – – annual ● ●

TRS 5-40 4 – ● ● – 230 V ● – – ●

Type Output Adjustment range Auxiliary power Version Performance test TÜV EC

TRV 5-40 CANopen 650 °C 24 V, DC a annual ● ●

B

109

For other PT 100 see Price List.

Temperature Detection and Control

Safety temperature limiterTemperature switch NRS 1-40.1

Steam boiler

TemperaturesensorTRG 5-. . .

Burner

TRV 5-40

Super-heater

Pressurized hot-water boiler acc. to EN 12953

NRS 1-40.1

TRV 5-40

Safety temperature limiterCombination PN Stock codePT 100 T < 650 °CTRG 5-67 L = 200 mm 160 2671822TRG 5-68 L = 200 mm 160 2671923TRV 5-40 24 V, DC – 2691040NRS 1-40.1 230 V, 50-60 Hz 3222841

Pressurized hot-water boilerCombination PN Stock codePT 100 T < 400 °CTRG 5-63 L = 100 mm 2x 40 2671110TRV 5-40 24 V, DC 1x – 2691040NRS 1-40.1 230 V, 50-60 Hz 1x 3222842TRS 5-40 230 V, 50-60 Hz – 2554041URB 2 – 3382043

Pressurized hot-water boilerCombination PN Stock codePT 100 TRG 5-63 L = 100 mm 2x 40 2671110TRV 5-40 24 V, DC 2x – 2691040NRS 1-40.1 230 V, 50-60 Hz 1x 3222842TRS 5-40 230 V, 50-60 Hz – 2554041URB 2 – 3382043

Combination PN Stock codePT 100 T < 540 °CTRG 5-65 L = 115 mm 160 2671611TRG 5-66 L = 140 mm 160 2671712

0525

Type approval pending

TRS 5-40URB 2

TC

TCSTB

STW

WB

Pressurized hot-water boiler acc. to TRD 604

NRS 1-40.1

TRV 5-40

TRS 5-40URB 2

TC

TCSTW(B)

STW(B)

WB

Burner

Burner

STB = Safety temp. limiterSTW = Safety temp.

controllerTC = ThermocoupleWB = High level alarm

110

Technical Data of Temperature Switches/Controllers/Indicators

Technical Data of Temperature Sensor

Temperature ControlConventional

TRS 5-6Self-monitoring temperature switchwith periodic self-checking feature to be used in conjunction with aresistance thermometer type TRG 5-... . The equipment operates as a safety temperature controller, or inconjunction with an external lock-outin accordance with VDE 0116 (EN50156) as a safety temperaturelimiter.An alarm is given as soon as thetemperature exceeds a preset limitvalue. Use in combination with a twin PT100 for temperature indication.

TRS 5-7Self-monitoring temperature switchwith periodic self-checking feature to be used in conjunction with aresistance thermometer type TRG 5-... . The equipment operates as a safetytemperature controller, or inconjunction with an external lock-outin accordance with VDE 0116 (EN 50156) as a safety temperaturelimiter. An alarm is given as soon asthe temperature exceeds a presetlimit value.

Examples of Installation■ Superheaters for steam boiler

plants operating without constantsupervision (TRD 604).

■ In pressurized hot-water plants astemperature limiter for thesecondary circuit in accordance with TRD 604 or 12952/..53.

■ Furnaces in accordance with DIN 30 683 up to 1000 °C.

■ Return-temperature control acc. toTRD 604.

■ Control systems for product heatingor cooling

TRS 5-8The min./max. temperature switch TRS 5-8 in combination withtemperature sensor TRG 5-53, TRG 5-54, TRG 5-55, TRG 5-57,serves as temperature controlleraccording to DIN 3440. Application insteam boilers, pressurized hot-water plants operating without constantsupervision (TRD 604) as well as any other type of heat generator. The equipment raises an alarm when the preset MIN/MAX limit value is attained.

Type PNScrewed Connections

Pt 100Thermocouple Max. Ambient Lengths avail-

BSP TRS.. . Welding stub type K temperature temperature able L [mm]TRG 5-11 1 3/4" 5-7 – – 2 1000 °C 120 °C 710

TRG 5-41 160 – 5-7 D 4 – 2 650 °C 120 °C 200

TRG 5-53 40 1/2" 5-6, 5-8 – 1 – 400 °C 100 °C 100 to 400

TRG 5-54 40 1/2" 5-6, 5-8 – 2 – 400 °C 100 °C 100 to 400

TRG 5-55 160 – 5-6, 5-8 D 5 S 1 – 540 °C 100 °C 115

TRG 5-57 160 – 5-6, 5-8 D 4 S 1 – 540 °C 100 °C 140

Accuracy class B

Type Outputs Control characteristic Mains supply Version Performance test in Temperature TÜV ECSwitchpoint 0/4-20 mA MIN MAX Δ T Standard b c e acc. with DIN 3440 range approval

TRS 5-6 1 – – ● – 230 V ● – – annual 30 °C to 540 °C ● ●

TRS 5-7 1 – – ● – 230 V ● – – annual 0 °C to 1000 °C ● ●

TRS 5-8 2 – ● ● – 230 V ● – – – 30 °C to 540 °C ●

KS 92-1 3 ● – PID – 230 V – – ● – –70 °C to 620 °C –

B

111

For other PT see Price List.Option: TRS 5-... Voltage 24 V or 115 V on request

Temperature Control

Safety temperature limiter

Temperature switch TRS 5-6

Steam boiler

TemperaturesensorTRG 5-5. .

Burner

Temperatureindicator

Super-heater

Pressurized hot-water boiler acc. to TRD 604

TRS 5-6

TRS 5-6

TRG 5-5..

TRG 5-5..

TRG 5-5..

TRS 5-8

Safety temperature limiter

Return-temperature controller

Combination PN Stock codePT 100 T < 400 °CTRG 5-54 L = 100 mm 40 2651716TRS 5-6 230 V/50. . .60 Hz – 2551741

Combination PN Stock codeTRG 5-53 L = 100 mm 40 2651610TRS 5-8 230 V/50. . .60 Hz – 2551941

0525

Type approvalDIN TW 106895

Type approvalDIN STW (STB) 985 03 SEG 01 202 931-B-01-0008

Combination PN Stock codeThermocouple Type K T > 540 °C to < 650 °CTRG 5-41 L = 200 mm 160 2671541TRS 5-7 230 V/50. . .60 Hz – 2551841

Type approvalDIN STW (STB) 986 03 SEG 01 202 931-B-01-0007

112

Conductivity MonitoringBasic Principles · Application

FunctionAll boiler water contains somedissolved solids. These impurities areconstantly concentrated due to theevaporation process, i. e. the totaldissolved solids (TDS) level increases.If the TDS level were to exceed thepermissible maximum stipulated by theboiler manufacturer, foaming andcarry-over would take place, leadingto contamination of the steamdistribution system. As a result, theoperational reliability of the plant willbe impaired, and the boiler and steamsystem can be badly damaged. Effective blowdown can be providedby use of blowdown controller inconjunction with conductivity electrodeand continuous blowdown valve BAE 46-211/ball valve 510.

Principles of MeasurementConductivity measurement, 2-electrode systemAn alternating voltage is applied to two electrode tips (polarization). Thecurrent flow is directly proportional tothe specific conductivity of the fluid.

Conductivity measurement, 4-electrode systemThe 4-electrode method is used inorder to improve the quality of themeasuring result and to avoid polari-sation. This measuring methodseparates the current-carrying fromthe voltage-carrying measuringelectrodes, which means that themeasurement is performed withoutcurrent and therefore free of polarisa-tion and that dirt deposits can becompensated to a large extent.

Temperature compensation (T° Comp)In plants with temperatures above25 °C the influence of temperatureson conductivity is an important factorto be considered. Due to electrolyticdissociation (desintegration of acompound in a solution) conductivityincreases considerably:

Degree of dissociation α ≈ 3 – 5 %/°C.

Manual temperature compensation issuitable for plants with steady servicetemperatures. The actual conductivityis obtained by carrying out a com-parison measurement (calibration) tooffset thermal errors.

Automatic temperature compensation (ATC) is ideal for plantswith varying service temperatures in order to make conductivity valuesindependent of changes in ambienttemperatures. The measured and theindicated values always refer to 25 °Cand are constantly compensated forchanges in pressure and temperature.

Deposits of fine suspended solidsforming scale on the heating surfacesand settling at the bottom of the boilerare the result of residual hardness oran excessive phosphate content within the boiler water. These scale formations form a heat insulating layer,which means that the heat transfersurfaces are now subject to designpressure, but at elevated temperature,which in turn can cause deformationand even an explosion. The answer to this problem is the use of continuousblowdown controller TA 5 / 6 / 7, solenoid valve 340 and intermittentblowdown valve MPA 46 / MPA 47 /MPA 110.

Steam boilersBoiler water, feedwater and condensate monitoring acc. to TRD

District-heating plants Condensate monitoring

Paper industry Condensate monitoring

Pulp industry Condensate monitoring

Catering kitchens Condensate monitoring

Water-treatment plants Conductivity monitoring

Dyeworks Dyebath monitoring

Filling/bottling plants Detection of different products

Electric boilers Maintaining defined conductivity

Cooling towers Continuous blowdown control

Pickling baths Quality monitoring

Application

B

113

Technical SpecificationConductivity

Technical Data of Electrodes

Technical Data of Electronic Control Units

Designsa = Field caseb = Plug-in unit in plastic casec = 19" slide-in unite = Case for panel mounting

Type PN ConnectionMax. service pressure [bar]/ Integrated Max. admissible ambient Lengths TÜV

ECsaturation temperature temp. sensor temp. at terminal box supplied mm approval

LRGT 16-1 40 1" 32/238 °C ● 70 °C 200 – 1000 ● ●

LRGT 16-2 40 1" 32/238 °C ● 70 °C 200 – 1000 ● ●

LRGT 17-1 63 1" 60/275 °C ● 70 °C 200 – 1000 ● ●

LRG 16-40 40 1" 32/238 °C ● 70 °C 200 – 1000 ● ●

LRG 16-41 40 1" 32/238 °C ● 70 °C 200 – 1000 ● ●

LRG 17-40 63 1" 60/275 °C ● 70 °C 200 – 1000 ● ●

LRG 16-4 40 3/8" 32/238 °C – 70 °C 100 – 1200 – –

LRG 12-1 10 11/4" 10/183 °C ● 60 °C 56 – –

LRG 12-2 10 1/2" 10/183 °C – 60 °C 24 – –

LRG 17-1 63 DN 50 mm 60/275 °C – 70 °C 250 – –

LRG 19-1 160 DN 50 mm 60/275 °C – 70 °C 250 – –

TypeOutputs Main supply Protection Design

Measuring rangeTÜV

ECswitchpoints 0/4 – 20 mA standard a b c e approval

LRR 1-40 3 ● 230 V IP 40 – ● – – 0.5 to 10000 µS/cm ● ●

LRS 1-5 1 – 230 V IP 40 – ● – – 40 to 10000 µS/cm – –

LRS 1-6 1 – 230 V IP 40 – ● – – 0.4 to 100 µS/cm – –

LRR 1-5 1 ● 230 V IP 40 – ● – – 40 to 10000 µS/cm – –

LRR 1-6 1 ● 230 V IP 40 – ● – – 0.4 to 100 µS/cm – –

LRT 1-5 – ● 230 V IP 40 – ● – – 40 to 10000 µS/cm – –

LRT 1-6 – ● 230 V IP 40 – ● – – 0.4 to 100 µS/cm – –

KS 90 2 ● 230 V IP 54 / IP 20 – – – ● 0 to 9999 µS/cm ● ●

114

LRGT 16-1 / LRGT 17-1The compact system LRGT 16-1 / 17-1 features 2 electrodes workingacc. to the conductivity measurementprinciple.

LRGT 16-2The compact system LRGT 16-2features 4 electrodes working acc. to the conductivity measurementprinciple.

The LRGT 16-x / 17-1 is designed for signalling the TDS value (➙ con-ductivity) in electrically conductiveliquids:

■ Conductivity permanently withinpredefined control range of theelectrode.

The LRGT 16-x / 17-1 has a conduc-tivity transmitter integrated in theterminal box for producing a standardsignal 4-20 mA.

KS 90The industrial controller KS 90 comeswith a self-optimising feature asstandard. In addition to the controlleroutput it has also an integrated max.limit value so as to fulfill the requirements of TRD 604 for 72 hrsoperation. The setpoint and the actualvalue are indicated by a LED display.

Power 05The Power 05 serves as a 24 V DCpower supply unit for the compactsystem LRGT 16-1 / 17-1.

Conductivity Spector Bus/Compact

URB see page 92.

LRG 16-40 / 17-40The conductivity electrode LRG 16-40 /17-40 works acc. to the conductivity measurement principle.

LRG 16-41The conductivity electrode LRG 16-41features 4 electrodes workingaccording to the conductivitymeasurement principle.

The LRG 16-4x / 17-40 is designedfor signalling the TDS value (➙ con-ductivity) in electrically conductiveliquids:

■ Conductivity permanently withinpredefined control range of theelectrode.

The LRG 16-4x / 17-40 is to be usedin conjunction with the conductivitycontroller LRR 1-40 or further systemcomponents. The conductivity dataare transferred to the conductivitycontroller or other system com-ponents via CAN data bus.

LRR 1-40The conductivity controller LRR 1-40 is used in conjunction withconductivity electrode LRG 16-40 /17-40 for conductivity monitoring andcontrol. The conductivity controllerhas the following functions:

■ Two limits with one switchpointeach (high-level alarm, low-levelalarm) or high-level alarm andintermittent blowdown programcontrol.

■ Three-position control with predefined proportional band.

■ Conductivity maintained within the control band defined by preset limits.

The LRR 1-40 features an optional output for a standard signal 4-20 mA.The conductivity data are transferredfrom the electrode to the controller viaCAN data bus.

B

115

SPS

KS 90

LRGT 16-1

4-20 mA

=~

24V, DC SITOP-2A

230V, AC

M

MAX

Conductivity Monitoring Spector Bus/Compactwith Automatic Temperature Compensation

Automatic continuous blowdown with limit signalling and intermittent blowdown – automatic temperature compensation –

LRG 16-401" BSP

GAV811

GAV 811 MPA 46

BAE 46or BAE 46-3

Signalling of max. conductivity value/automatic intermittent blow-down – automatic temperature compensation –

MAX

BAE 46-40

LRR 1-40

URB 1 (2)

MV

SpectorBus

Spector Compact PN Stock codeLRGT 16-1, 400 mm 40 3772545KS 90 2661444Power supply unitPower 05 3373041

LRGT 17-1, 400 mm 63 3772645

KS 90 2661444Power supply unitPower 05 3373041

Tee piece

Tee PieceApproved in acc. with PED 97/23 EC PN 40Approved in acc. with PED 97/23 EC PN 63

Spector Bus PN Stock codeLRG 16-40, 600 mm 40 3772746tee piece 50/25"1) 40 147095LRR 1-40 3802241URB 1 3381043BAE 46-40< DN 15 mm 40 3891204< DN 20 mm 40 3891404< DN 25 mm 40 3891504< DN 40 mm 40 3891704MPA 46< 6 t/h DN 25 mm 40 3661500< 28 t/h DN 40 mm 40 3661700Solenoid valve 340 C 1/2" BSP 40 050334

StrainerGSF 335 1/4" BSP 40 067688

Reducer 1/2" BSP – 1/4" BSP 40 051539

LRG 17-40, 600 mm 63 3772846tee piece 50/25"1) 1500989LRR 1-40 3802241URB 1 3381043BAE 47-40< DN 15 mm 63 3901204< DN 20 mm 63 3901404< DN 25 mm 63 3901504< DN 40 mm 63 3901704MPA 47< 6 t/h DN 25 mm 63 3671500< 28 t/h DN 40 mm 63 3671700Solenoid valve 340 C 1/2" BSP 050334

StrainerGSF 335 1/4" BSP 067688

Reducer 1/2" BSP – 1/4" BSP 051539

1) Approval in acc. with PED 97/23/EC,module A

Power 05

0525

0525

Type approval: TÜV · WÜL · 02-007EG BAF-MUC-02 03 103881 003

Type approval: TÜV · WÜL · 01-003EG BAF-MUC-02 04 105620 001TÜV and EC type approval only in combination with KS 90.

LRG 1.-40LRGT 1.-1

PLC

116

Conductivity Monitoring with Manual or Automatic Temp. Compensation LRG.../LRR 1. (Conventional Design)

LRR 1-5 b/LRR 1-6 bPurpose and ApplicationFor automatically controlled blowdownto reduce blowdown wastage andincrease safety in operation. Use in conjunction with GESTRAconductivity electrode LRG 16-4 orLRG 17/19 as sensing unit, and GESTRA continuous blowdown valve BAE as control valve. Automaticclosing of blowdown line during boilershut-down. Current output for remoteindication or recording of conductivity.Application in steam boilers, evaporators or similar plant, in particular plants operated automatically, e. g. in accordance withthe regulations for operation withoutconstant supervision (TRD 604).DesignPlug-in unit in plastic case forinstallation in control cabinets. Theterminals in the case are accessibleafter undoing two screws andunplugging the unit from its base. Toavoid confusion with other plug-inunits of the GESTRA range, insertsare fitted in the bases so that only thecorrect unit may be plugged into eachbase. The plug-in units may besnapped onto a 35 mm supporting railor screwed into position on amounting panel. Field enclosures forseveral plug-in units are available onrequest.

Manual Temp. Compensation

LRG 16-4 / LRG 12-2Purpose and ApplicationThe conductivity electrodes LRG 16-4and LRG 12-2 are used in conjunctionwith conductivity switch LRS 1-5/6 bor conductivity controller LRR 1-5/6 bto sense continuously the conductivityof process or boiler water.

LRG 17, LRG 19I Conductivity monitoringIn combination with GESTRAconductivity switch LRS forcontinuous TDS monitoring of boilerwater. Particularly suitable for steamboiler operation without constantsupervision (TRD 604).II Continuous blowdown controlIn combination with GESTRAblowdown controller LRR 1-5 andblowdown valve REAKTOMAT BAEfor fully automatic continuous andintermittent blowdown control.Accurate TDS control reduces waterconsumption and increases the operational safety of the installation.An alarm is raised when the desiredboiler water condition cannot beobtained by the control system.Automatic isolation of blowdown lineduring boiler shut-down.

B

117

Conductivity Monitoring with Manual or Automatic Temp. Compensation LRG.../LRR 1. (Conventional Design)

Automatic Continuous Blowdown Control– Manual Temp. Compensation – < 275 °C

LRR 1-5

GAV see pages 75.Flanges see Price List.Tee piece connector for LRG 16-4 see page 121.Level pots LRG 17-1/19-1 see page 121.(optional)

4 - 20 mA

MAX

MIN

BAE 210

GAV

LRG 1x

0525

LRG 17-1LRG 19-1

Equipment PN Stock code

LRG 16-4 3/8" BSP 40 3772245LRR 1-5b 3801441URS 2 2351041BAE 46-3 DN 15 3891203BAE 46-3 DN 20 3891403BAE 46-3 DN 25 3891503LRG 17-1 60 bar 275 °C

63 3771443

LRR 1-5 3881441URS 3351041BAE 47-3 63 3901503LRG 19-160 bar 275 °C

160 3771743

LRR 1-5 3801441URS 3351041BAE 210

250 3931500Butt weld 33.7x3.6

118

Conductivity Monitoring with Manual or Automatic Temperature Compensation LRG.. ./LRR 1-5/6

URS 2-bPurpose and ApplicationUniversal signalling of two limit valuesas MAX and MIN alarm. Connectionto a measuring transducer withcurrent output 0/4 – 20 mA. Application for instance with GESTRAlevel transmitter NRT 2-1b, continuous blowdown controller LRR 1-5 b and conductivity transmitter LRT 1-5b/LRT 1-6b.DesignPlug-in unit in plastic case forinstallation in control cabinets. Theterminals in the case are accessibleafter undoing two screws andunplugging the unit from its base. Toavoid confusion with other plug-inunits of the GESTRA range, insertsare fitted in the bases so that only thecorrect unit may be plugged into eachbase. The plug-in units may besnapped onto a 35 mm supporting railor screwed into position on amounting panel. Field enclosures forseveral plug-in units are available onrequest.

LRG 12-1Purpose and ApplicationIn conjunction with GESTRAconductivity transmitter LRT 1 forcontinuous monitoring of theconductivity of liquids, signalling oflimit values, remote indication orrecording. Application in steam boilerplants for feedwater and condensatemonitoring, as well as in districtheating plants, paper and pulpindustries, catering kitchens, fordyebath monitoring in dye works, andfor conductivity monitoring in watertreatment plants.DesignThe conductivity electrode is providedwith two electrode tips completelyinsulated by a PTFE tubing except forthe free ends. The non-insulated endsform together with a PTFE sleeve ameasuring cell. The screwed bodyincorporates a temperature feeler. A system of compression springsensures pressure-tight sealingbetween electrode tips and body evenat varying temperatures.

LRT 1-5 b, LRT 1-6 bMeasuring transducer with analogue current output used in conjunctionwith conductivity electrode LRG 12-1for continuous monitoring of liquids,signalling of limits, remote indicationor recording.Application mainly in condensatesystems to detect any ingress offoreign matter, e. g. in steam boilerplants for monitoring the boiler wateror the condensate returned to theboiler.

Manual Temp. Compensation

LRS 1-5 b, LRS 1-6 bContinuous monitoring of theconductivity of liquids with GESTRAconductivity electrodes LRG 16-4, LRG 17 or LRG 19. Signalling of preset conductivity limits.Application in steam boiler plants for condensate and feedwatermonitoring; for condensate monitoringin district heating plants, in the paperand pulp industry and in cateringkitchens; for conductivity monitoring in water treatment plants; formonitoring of cooling towers, fordyebath monitoring in dye works.

Automatic Temp. Compensation

B

119

Conductivity Monitoring with Manual Temperature Compensation LRG.. ./LRR 1-5/6

Manual temperature compensationTemperature > 275 °C

Signalling of MAX and MIN conductivity values– automatic temperature compensation –

Signalling of MAX. conductivity value – manual temperature compensation –

PKSample valve unit followed by conductivity electrodeLRG 12-2

BAE

URS 2LRR

– Automatic Temp. Compensation

PK

GAV

MAX

MIN

Conductivity transmitter

LRT 1-..

ConductivityelectrodeLRG 12-1

MIN-Alarm

MAX-AlarmURS 2

Remote levelindicatorURA 2

Three-waycontrol valve

Equipment PN Stock codeLRG 12-1 10 3771040LRT 1-5< 10000 μS/cm 3811441

LRT 1-6< 100 μS/cm 3811541

URS 2 3351041

Equipment PN Stock codeLRG 16-4 40 3772244LRG 17-1 63 3771443LRG 19-1 160 3771743LRS 1-5< 10000 μS/cm 3781441

LRS 1-6< 100 μS/cm 3781541

Sample valve unit Stock code> 275 °LRG 12-2 3773030PK-120 PEO3ALRR 1-5 3801441URS 2 3351041BAE 210 DN 25 Fl. 393150001GAV see page 75.

120

Ancillaries: Level Pots andPortable Measuring Instruments VRM

VRM 2

The service case VRM 2 contains the conductivity meter GMH 3410. The GMH 3410 is equipped with abuilt-in measuring cell whichmeasures the conductivity of water.

FunctionThe GMH 3410 is suitable forconductivities within a range from 0 to 200 mS/cm.

DesignVRM 2Plastic case with foamed plasticsinsert. Conductivity measuringinstrument GMH 3410 with built-inmeasuring cell.

VRM 3

The service case VRM 3 contains the conductivity meter GMH 3410 and the pH measuring device GMH 3510.

The GMH 3410 is equipped with abuilt-in measuring cell whichmeasures the conductivity of water.

The GMH 3510 is equipped with pH electrode type GE 100 BNC and Pt100 temperature probe type GTF 401.The electrode and the probe areplugged into the equipment.

The service case contains also thehandling and calibration set GAK 100,consisting of:

■ 5 orange capsules for thecalibration solution pH 4.01 and aplastic bottle

■ 5 green capsules for the calibrationsolution pH 7.01 and a plastic bottle

■ 5 blue capsules for the calibrationsolution pH 10.01 and a plastic bottle

■ 1 bottle 3mol KCL-solution

■ 1 bottle pepsin cleaning agent

FunctionThe GMH is suitable for conductivities within a range from 0 to 200 mS/cm.

The GMH 3510 together with the pH electrode GE 100 BNC can measure pH values from 0.00 to 14.00.

The temperature probe measures temperatures between – 50 °C and +250 °C.

For pH measuring the temperaturerange is limited to 10 °C to 50 °C.

DesignVRM 3Plastic case with foamed plasticsinsert.

Conductivity measuring instrumentGMH 3410 with built-in measuringcell.

pH meas. device GMH 3510 with pH electrode GE 100 BNC andtemperature probe GTF 401.

Calibration set GAK 1400.

Connections DN2) Stock code

To suit electrode LRG 16-4 15 mm 141873

Material: C 22.8 / St 35.8 20 mm 141874

Pressure rating: PN 40 25 mm 141875

40 mm1) 141876

To suit conductivity electrodes 15 mm 147093

LRGT 16-1 / LRG 16-40 20 mm 147094

Material: C 22.8 / St 35.8 25 mm 147095

Pressure rating: PN 40 40 mm 147096

Connections DN2) Stock code

MF 1161 STT 15 mm 1500632

For installing level electrodes outside the boiler 20 mm 1500633

LRGT 16-1 / LRG 16-40 25 mm 1500634

Material: C 22.8 / St 35.8 40 mm1) 1500635

Pressure rating: PN 40

MF 1171 STT PN 63 1500989

To suit electrode type LRGT 17-1 / LRG 17-40 25 mm

3MF 88.9 PN 63 1500987

To suit electrode LRG 17-1 / LRG 19-1 25 mm

For continuous blowdown valve BAE PN 160 1500988

(automatic continuous blowdown control) 25 mm

1) Approval acc. to PED 97/23/EC Module A12) Please state nominal size (DN) when ordering.3) Approved in acc. with PED 97/23/EC

B

121

Ancillaries: Tee Pieces, Level Pots andPortable Measuring Instruments VRM

Tee Pieces for Conductivity Electrodes

DN 15-40 mmBoiler

DN 15 – 40 mmBAE

DN 15 – 40 mmBoiler

3/8"

DN 15 – 40 mmBAE

DN 50 mmBoiler

1"

DN 25 mmBoilerconnection

DN 25 mmBAE

DN 50 mmElectrodeconnection

DN 25 mmBoilerconnection

DN 25 mm BAE

Portable Measuring Instruments for Conductivity + pH Value

Type Stock code

■ VRM 2 Conductivity 3821040

■ VRM 3 Conductivity, temperature and pH value 3821141

1)

3)

3)

1)

DN 15 – 40 mmBAE

1"

1"

Level Pots Instruments for Conductivity Electrodes

122

Continuous Blowdown Valves

Application

Materials (body) Pressure/Temperature Rating (DIN 2401)

End connections Overall Lengths L [mm]

BA 46, BA 47

BA 210, BA 211

ZK 29

L

L

L

BA 46, BA 47, BA 210, Valve with adjustable stage nozzle and sample valve for continuousBA 211, ZK 29 blowdown of steam boilers and evaporators.

BAE 46, BAE 47, Valve with adjustable stage nozzle, sample valve, and electric BAE 210, BAE 211, actuator for automatically controlled continuous blowdown. Especially ZKE 29 suited for boilers operating without constant supervision (TRD 604).

ZKE 29BAE 210, BAE 211BAE 46, BAE 47

L L L

Type DIN ASTM*)1) PNTMA PMA TMA PMA[°C] [bar] [°C] [bar]

BA 46/BAE 46 C 22.8 A 105 40 200 30.2 250 28.4

BA 47/BAE 47 C 22.8 A 105 63 250 44.8 300 40.6

BA 210/BAE 210 C 22.8 A 105 250 200 200 400 125

BA 211/BAE 211 13 CrMo 4 4 A 182 - F12 320 400 292 530 124

ZK 29/ZKE 29 13 CrMo 4 4 A 182 - F12 160 160 146 530 62

*) Physical and chemical properties comply with DIN grade.1) ASTM nearest equivalent grade is stated for guidance.

Type DNFlanged Flanged Socket- Butt-

DIN ANSI weld weld

BA 46/BAE 46 15 20 25 40 150 160 200 172 172 216 95 95 130 –

BA 47/BAE 47

BA 210/BAE 210 25 410 440 280 300

BA 211/BAE 211 25 440 440 280 300

ZK 29/ZKE 29 50 300 300 400 300

B

123

Continuous Blowdown Valves

Capacity Charts

Chart 1: BA 46, BA 47, DN 15-32BAE 46, BAE 47, DN 15-32

Chart 2: BA 46, BA 47, DN 40/50BAE 46, BAE 47, DN 40/50

Chart 3: BA 210, BA 211BAE 210, BAE 211

Chart 4: ZK 29ZKE 29

1) For relatively small quantities (dotted line in chart)use 210 k or 211 k (with special stage nozzle).

Chart 5: BAE 210k, 211k

Position of control lever

Hot

-wat

er c

apac

ity [

kg/h

]

Position of control lever

Hot

-wat

er c

apac

ity [

kg/h

]

Differential pressure [bar] Differential pressure [bar]


Hot

-wat

er c

apac

ity

Valve lift in mm

Hot

-wat

er c

apac

ity

Scale divisions


124

DescriptionA short boiler blowdown is performed by quickly openingthe blowdown valve. This creates a short-term low-pressure area around the blowoff opening at the bottomof the boiler, causing a suction effect that removesaccumulated sludge and sediments that have settled out in the lower part of the boiler.

The suction effect of an intermittent blowdown is onlyeffective at the moment when the valve is being opened.For this reason the valve should only be opened forapprox. 2 seconds. Longer opening periods waste boilerwater.

For the closing process the design of the valve is of greatimportance. The closing force of the spring of theintermittent blowdown valves (M)PA is increased by theboiler pressure, which means that the valve is in a goodcondition for breaking up any dirt particles settled on thevalve seat/plug, thus ensuring a positive shutoff.

The service life of the valve seat/plug is further increasedby the pressure reduction that takes place in the radialstage nozzle installed downstream of the valve. The timeinterval between bottom blowdown processes can only becalculated indirectly by taking the boiler efficiency, thefeedwater quality and the admissible boiler water qualityinto account.

ApplicationIn steam boiler plants operating without constant supervision. Automation of intermittent blowdown by generating electric pulses to initiate a blowdown cycle via the GESTRA rapid-action intermittent blowdown valve MPA.

Programme-Controlled Blowdown Systems

Versiona = Field caseb = Plug-in unit in plastic casec = 19" slide-in unite = Case for panel mountingf = Integrated in solenoid

valve plug

Three-Way Solenoid Valve

Strainer

Max. service Min. differentialConnection Protectionpressure [bar] pressure [bar]

161) min. 0.5 1/4" BSP IP 651) Max. admissible pressure for diaphragm actuator: 6 bar

Material Connection Mesh sizeBody Filter [mm]

Gun metal Rg 5 Austenitic S.S. 1.4571 1/2" BSP 0.5

Controls

Type Design Interval timePulse duration Mains Version

sec voltage a b f

LRR 1-40Continuous/intermittent blowdown controller for

1 h – 120 h 1 – 60 230 V / 50 Hz – ● –installation in control cabinet, with strainer and solenoid valve

TA 5Cycling timer PRS 7 as plug-in unit in plastic

30 min – 31.5 h 1 – 63 230 V / 50 Hz – ● –case, strainer, solenoid valve

TA 6Cycling timer PRS 7 in sheet-steel case, strainer,

30 min – 31.5 h 1 – 63 230 V / 50 Hz ● – –solenoid valve, all component parts assembledand interconnected on a mounting panel

TA 7Cycling timer PRS 8 integrated in solenoid

30 min – 10 h 0.5 – 10 230 V / 50 Hz – – ●valve plug, strainer, solenoid valve

B

125

Programme-Controlled Blowdown Systems

PRS 7

GAV MPA

GAV MPA

GAV MPA

Pressurereducing station

Pressurereducing

station

Pressurereducing

station

TA 6

TA 5

MV

Strainer

TA 7

Strainer

Type DN PN Stock code

TA 5 3602040

Pressure reducing station 146474

MPA 46

< 6 t/h 25 40 3661500

< 24 t/h 40 3661700

MPA 47

< 6 t/h 25 63 3671500

< 24 t/h 40 3671700

MPA 110 Δp 160 bar 25 250 Fl. 365150002

GAV see page 75.


TA 6 3602141


MPA 46

< 6 t/h 25 40 3661500

< 24 t/h 40 3661700

MPA 47

< 6 t/h 25 63 3671500

< 24 t/h 40 3671700

MPA 110 Δp 160 bar 25 250 Fl. 365150002

GAV see page 75.


TA 7 3602242


MPA 46

< 6 t/h 25 40 3661500

< 24 t/h 40 3661700

MPA 47

< 6 t/h 25 63 3671500

< 24 t/h 40 3671700

GAV see page 75.

TA 7

GAV MPA

Strainer

LRR 1-40

Pressurereducing station

126

Rapid-Action Intermittent Blowdown Valves

Application

End Connections

Material (body) Pressure/Temperature Rating (DIN EN 1092-1)

Type DIN ASTM*) PNTMA PMA TMA PMA[°C] [bar] [°C] [bar]

PA 46, MPA 46 C 22.8 A 105 40 200 30.2 250 28.4

PA 47, MPA 47 C 22.8 A 105 63 250 44.8 300 40.6

PA 110, MPA 110 13 CrMo 4 4 A 182 - F12 250 400 227 525 110

*) Physical and chemical properties comply with DIN grade.

PA 46, PA 47, PA 110Manual intermittent blowdown of steam boilers and pressurized hot-water boilers.

MPA 46, MPA 47,Automatic, programme-controlled intermittent blowdown of

MPA 110steam boilers and waste-heat boilers. Especially suited for boilers operating without constant supervision (TRD 604).

Type Flanged DIN Flanged ANSI Butt-weld Butt-weld

PA 46, MPA 46 ● ● ● –

PA 47, MPA 47 ● ● ● –

PA 110, MPA 110 ● ● – ●

Dimensions PA 46, MPA 46 [mm]

Connections DN 20 25 32 40 50

Flanged DIN L 150 160 180 200 230

Flanged ANSI L 182 182 182 216 216

Butt-weld L 260 260 260 250 250



Flanged DIN L – 190 – 220 250

Flanged ANSI CI 300 L – 182 – 216 216

Flanged ANSI CI 600 L – 216 – 216 216

Butt-weld L – 260 – 250 250



Flanged DIN L – 410 – – –

Flanged ANSI CI 600 L – 410 – – –

Flanged ANSI CI 900/1500 L – 440 – – –

Butt-weld L – 300 – – –

PA 46, PA 47

MPA 46, MPA 47

L

MPA 110

L

L

B

127

Intermittent Boiler Blowdown as a Function of Differential Pressure

Capacity Charts

Chart 1: PA 46, MPA 46PA 47, MPA 47x

Chart 2: PA 110, MPA 110

PA /MPA

110, D

N 25

The Benefits of the New GESTRAIntermittent Blowdown Valves● Improved blowdown effectiveness through integrated

pressure chamber in the outlet section of the body

● Greater tightness through additional wiper ringsbetween the packing seals

● Longer service life and availability through radial stagenozzle downstream of the valve seat

● Insensitive to waterhammer through absence of largebody cover

● Reduced wear through new arrangement of the sealson the low-pressure side

● Consistent implementation of the work safetyregulations through novel distance tube

● Quick and easy installation thanks to multifunctionparts

● Reduced maintenance and service effort throughadditional cup springs acting on the compression springand through the possibility of tensioning the seals fromoutside

● Better checking functionally through relief vent forleak detection from outside

● Greater convenience through innovative clip fasteningof the hand lever

Boiler pressure Boiler pressure

128

Contamination Detectorsfor Condensate and Process Liquids

PurposeContinuous monitoring of transparentliquids to detect any ingress ofinsoluble foreign matter causingturbidity, such as emulsified oils andgreases. Measuring of turbidity andsignal evaluation for indication,recording and control. Tripping ofalarms, control valves etc.

The oil and turbidity detector OR 52consists of sensor type ORG 12/ORG22 and measuring transducer ORT 6.

Application

Condensate monitoring in steam boilers to detect any ingress of oils and greases in accordance with TRD 604, EN 12952/..53.

Monitoring of cooling water, drinking water, condensate, and beverages for turbidity.

Monitoring of cooling water, drinking water, condensate in hazardous areas – zone 1(on request).

Hot-water monitoring in district heating plants.

Filter and cooling-water monitoring on ships.

Technical Data

Type Sensor PN Connection Material Measuring transducer ORT 6Wall-mounting case, measuring range 0 – 25 ppm2 alarm relay outputs (instantaneous/delayed)LED bar chart display4 – 20 mA current output

OR 52/5 ORG 12 10 3/8" BSP GG 25 ●

OR 52/6 ORG 22 10 3/8" BSP 1.4580 ●

Liquid Monitoring – Detecting Ingress of Oil in Condensate Systems and Marine Installations

PurposeMonitoring conductive liquids forcontamination by foreign matter thatincreases the TDS concentration;conductivity monitoring (TDS control),signalling and display.

Application

For condensate and feedwater monitoring in steam and (pressurised) hot water plants todetect ingress of acids, alkalis, raw water, dyes, etc.

Liquid Monitoring – Detecting Ingress of Acids, Alkalis, Raw Water, Dyes, etc.

Technical Data of Conductivity Electrodes

Technical Data of Electronic Control Unit/Controller

Type PN ConnectionService pressure [bar] Integrated Ambient temperature Lengths

TÜV ECsaturated steam temp. temp. sensor at terminal supplied

LRG 12-1 10 11/4" BSP 10/183 °C ● 60 °C 56 mm – –

TypeOutputs Mains voltage

ProtectionDesign

Measuring range TÜV ECswitching 0/4 – 20 mA Standard a b c e

LRT 1-5 – ● 230 V IP 40 – ● – – 40 up to 10000 µS/cm – –

LRT 1-6 – ● 230 V IP 40 – ● – – 0.4 up to 100 µS/cm – –

URS 2 ● – 230 V IP 40 – ● – –

B

129

Condensate monitoring to detect any ingress of oil

4 – 20 mA

CANopen (option)Measuring transducerORT 6


SensorORG 12, 22

Delayed alarm output

Contamination Detectorsfor Condensate Systems

Type Stock code

OR 52/5 4003040

OR 52/6 4003140

Pneumatic three-waycontrol valve PN 16

1500554DN 50 withpilot valve

Non-return valveDISCORK 86 a, SF 20 mbar

1211801

PN 40, DN 50

Type approvalTÜV WÜF · 02- 009

Condensate monitoring and conductivity monitoring

URS 2LRT 1-..


Alarm output

Type Stock code

LRG 12-1 3771040

LRT 1-5 3811441

URS 2 3351041

Pneumatic three-waycontrol valve PN 16

1500554DN 50 with pilot valve

Non-return valveDISCORK 86 a 1211801

PN 40, DN 50

130

Purpose and Application ofOil DetectorThe oil detector ORGS 11-2 is usedfor monitoring cooling water to detectany ingress of oil. An alarm andcontrol unit installed downstream ofthe detector will dump contaminatedcooling water, thereby preventing oilcontamination of the installation to becooled.The equipment detects all low-densitymatter that is insoluble in water, notemulsified, and has a lower electricalconductivity than water. Antirust oils,which emulsify in cooling water, donot trigger an alarm. The output contact relays of thecontamination detector are self-monitoring and of the normallyclosed type, and will therefore trigger an alarm in the event of a malfunction. Tested and approved byGermanischer Lloyd GL .

Ingress of Oil in Cooling Water SystemsDigital Indicator

Technical DataType PN Connection Material

ORGS 11-2 6 Inlet E0-15-L C 22.8

Outlet E0-12-L/S

Drain E0-15-L

B

131

Ingress of Oil in Cooling Water SystemsDigital Indicator

Cooling-water monitoring with oil detector

Oil detectorORGS 11-2

Cooler

Type Stock code

ORGS 11-2 404 11 40

Type approval for marine applicationssee page 88.

132

Installation example of a flowmetering system with taperedpipeline and pressure/temperature compensation

14 x D 6 x D

5 x D

3.5 x D

Principle of MeasurementThe design is based on the Kármán vortex street principle using a body installedperpendicular to the axis of the pipe. The vortices generated in the flow streamproduce pressure oscillations which are converted into electrical signals by asensor. The output signal is then evaluated and processed in the flow computer.

Vortex flowmeter

Flow computer

Specially shaped vortex shedder

Flowmetersfor Steam, Gases and Liquids

Recommended steam flowrate m· in [kg/h] for Vortex flowmeter 83 *)

Absolutepressure DN 20 DN 25 DN 40 DN 50 DN 80 DN 100 DN 150 DN 200 DN 250 DN 300

[bar] mm mm mm mm mm mm mm mm mm mm

1.0 30 45 120 180 480 750 1700 3000 4500 6700

1.4 40 65 165 250 650 1030 2300 4100 6400 9200

1.6 45 72 185 290 750 1150 2600 4650 7200 10500

1.8 50 80 210 320 830 1300 2900 5200 8100 11700

2.0 60 90 230 350 920 1430 3200 5700 8900 12900

2.5 70 110 280 440 1130 1700 4000 7050 11000 15900

3.0 85 130 335 520 1340 2100 4700 8400 13000 18500

4.0 110 170 440 680 1750 2750 6200 11000 17000 24500

5.0 135 210 540 850 2170 3400 7600 13500 21000 30500

6.0 160 250 645 1000 2550 4030 9050 16100 25000 36000

9.0 235 370 745 1450 3780 5900 13300 23500 37000 53000

11.0 285 440 950 1790 4580 7150 16100 28500 44000 64000

14.0 360 560 1150 2250 5780 9030 20300 36000 56000 81000

21.0 535 830 2140 3350 8550 13400 30100 53500 83000 120000

31.0 790 1230 3150 4930 12600 19700 44300 78800 123000 177000

*) For minimum and maximum flowrates see data sheet.

B

133

Steam-flowmeasurement system for constantsaturated steampressure

consisting of:Vortex flowmeter type83 WA and flow computer type Flow 20

Steam-flowmeasurement systemfor fluctuatingsaturated steampressure(pressure compen-sated)

consisting of: Vortex flowmeter type83 WA, flow computertype Flow 100 andpressure transmitter DRT with syphon andpressure gauge.

Steam-flowmeasurement systemfor superheated steam(temperature andpressure compensated)

consisting of:Vortex flowmeter type83 WA, flow computertype Flow 100, temperature sensor TRG 5-53 and pressure transmitterDRT with syphon andpressure gauge

Steam-flowmeasurement system forfluctuating saturatedsteam pressure(temperaturecompensated)

consisting of:Vortex flowmeter type83 WA, flow computertype Flow 100 andtemperature sensor TRG 5-53

Flowmetersfor Steam, Gases and Liquids

Vortex Flowmeter system for temperatures up to 204 °C – wafer body

DN 20

DN 25

DN 40

DN 50

DN 80

DN 100

DN 150

DN 200

Vortex Flowmeter system for temperatures up to 204 °C – flanged body

DN 25

DN 40

DN 50

DN 80

DN 100

DN 150

DN 200

DN 250

DN 300

134

Couplerelement

Modem

CANopen

Office PC

Higher-level control systemse.g. via Profibus DP

Gateway

GSM/Radio

Palm PDA

SPECTORbus

Couplerelement

CANopen

Office PC

Higher-level control systemse.g. via Profibus DP

GSM/Radio

Palm PDA

SPECTORcontrol

SPECTORbus

Modem

FU

Burner control

O2 metering

Field bus, control level (optional)PROFIBUS, CAN, INTERBUS-S, MODBUS

FU

Burner control

O2 metering

Field bus, control level (optional)PROFIBUS, CAN, INTERBUS-S, MODBUS

SPECTORcom

GESTRA has taken the next big step inboiler automation: as the first manufacturerworldwide, GESTRA is offering the remotemonitoring of boiler systems – with Spectorcom. No matter whether you want to useyour company’s intranet, the World WideWeb, your mobile phone, palmtop orCassiopeia – the current operating data areavailable anywhere, anytime. Malfunctionscan be detected and remedied at an earlystage. SPECTORcom – another milestone on the road to increased operational safety.

SPECTORcontrol

If you want to undertake even more complexcontrol tasks such as recording trend andquantity curves, producing malfunction ormaintenance logs or interfacing the systemwith other control systems then you need thelatest newcomer to the SPECTOR family –SPECTORcontrol. The equipment acquiresall measured values arriving from the electronicsensing units and relays them to the control

centre. There the incoming data arecombined in order to establish higher-levelstatements which are displayed on a colour

SPECTORcom/control Control the Controls

SPECTORcom via Gateway´s

GESTRA SPECTOR Family

SPECTORcontrol

monitor. Pressure, temperature, conductivityetc. will be controlled automatically.

C

Special Equipment and Vessels for Heat Recovery

Page

Condensate Recovery and Return System SDR A .............................................. 136

Open-Type Condensate Recovery and Return Tank SDL 100 .............................. 137

Closed-Type Condensate Recovery and Return Tank SDL 130 ............................138

Steam-Powered Condensate Return Unit KH ..........................................................139

Steam-Powered Condensate Return Unit FPS ...................................................... 140

Desuperheaters EK, KD ........................................................................................141

Steam Regenerators GRDE ..................................................................................142

Feedwater Deaerating Plants NDR, SW................................................................143

Flash Vessels VD ..................................................................................................144

Blowdown Receiver (Mixing Cooler) VDM ............................................................145

Condensate Dampening Pot ED............................................................................146

Air/Steam Driers and Purifiers TD/TP (Steam Separators) .................................. 147

Questionnaire for preparing offers ..............................................................148 – 155

Heat exchangers available on request

GESTRA pressure equipment is designed, constructed and tested to PED1)97/23/EC and AD Bulletin 2000. Pressure equipment of category I, II, III and IVbears the CE marking. The Declaration of Conformity certifies that the equipmentsatisfies the applicable safety requirements of the PED.

Pressure equipment that falls within the scope of article 3 section 3 of the PED is designed and manufactured in accordance with what is recognised as soundengineering practice. This equipment will not be CE marked but must beaccompanied by adequate documentation which clearly identifies the manufacturer.

1) PED = Pressure Equipment Directive

136136

Condensate Recovery and Return System SDR A

ApplicationCondensate tanks are used to collectthe condensate coming from steamusers or flash vessels. From the tankthe condensate is pumped into thefeedwater tank by a level-controlledpump, in most cases via a deaerator.

Rectangular condensate tanktype SDR AThe standard range of rectangularcondensate tanks is designed forcondensate flowrates of up to 10 t/h and a max. service pressure of 0.1 bar g.

Tank made of steel type S235JRG2 (RSt 37-2), inside: untreated, outside:anti-corrosion coating with two condensate pumps andaccessories installed next to thetank, e. g. bimetal dial thermometer,water-level indicator, GESTRA levelelectrode and control for automaticpump operation, non-return valves,shut-off valves, high-pressure centrifugal pump(s) and pressuregauge.Completely assembled and interconnected, control cabinetsupplied but not mounted.

Max. condensate temperature 90°C

Optional extrasPlastic coating type “A” up to max. 130 °CPlastic coating type “B” up to max. 95 °C

Tanks and valves made of other materials available on request.Other pumping capacities and discharge heads on request.

Size Volume Pumpingl capacity m3/h

1 340 1

2 550 2

3 750 3

4 1000 4

5 1500 6

6 2000 8

7 2500 10

Condensate tank of rectangular design type SDR A with high-pressure centrifugal pump(s) installed next to the tank

Vessels in compliance with Conformity Assessment Section 3, Paragraph 3

C

137

Open-Type Condensate Recovery and Return Tank SD L 100


Open condensate tank ofcylindrical design type SD L (S)The standard range of cylindricalcondensate tanks is designed forcondensate flowrates of up to 30 t/hand a max. service pressure of 1 bar. Higher flowrates available on request.

Tanks available as horizontal andvertical design, made of steelS235JRG2 (RSt 37-2), inside:untreated, outside: anti-corrosioncoating with two high-pressurepumps and associated valves andaccessories installed next to thetank: e. g. bimetal dial thermometer,pressure gauge assembly, water-levelindicator, level electrode and controlfor automatic pump operation andnon-return valves. Completelyassembled and interconnected, control cabinet supplied but not mounted.

Optional extrasPlastic coating from D = 1000 mm onwards possible: type “A” up to max. 130 °CPlastic coating from D = 1000 mm onwards possible: type “B” up to max. 95 °C

Other valve and tank materials available on request.Other pumping capacities and discharge heads on request.


I 250 1

II 390 2

III 850 4

IV 1370 6

V 2100 9

VI 2900 12

VII 3800 16

VIII 4500 20

IX 5900 25

X 6900 30

Condensate receiver tank of cylindrical design type SD L (S) with high-pressure centrifugal pump(s) installed next to the tankL = horizontal design; S = vertical design

Max. condensate temperature 90°C

138

Closed-Type Condensate Recovery and Return Tank SD L 130


Closed condensate tanks of cylindrical design type SD L (S)The standard range of cylindricalcondensate tanks is designed forcondensate flowrates of up to 30 t/hand a max. service pressure of 4 bar. Higher pressure ratings and flowratesavailable on request.

Tanks available as horizontal andvertical design, made of steel boilerplate type P265GH (H II), inside:untreated, outside: anti-corrosioncoating with two horizontal-typecentrifugal pumps and associatedvalves and accessories installednext to the tank: e. g. bimetal dialthermometer, pressure gauge assembly, magnetically operated liquidlevel gauge, level electrode and controlfor automatic pump operation, safetydevice, overflow, air vent, vacuumbreaker, shut-off valves and non-returnvalves. Completely assembled andinterconnected, control cabinet supplied but not mounted.

Optional extrasPlastic coating from D = 1000 mm onwards possible: type “A” up to max. 130 °C

Other valve and tank materials available on request.Other pumping capacities and discharge heads on request.

Condensate receiver tank of cylindrical design type SD L (S) with horizontal-type centrifugal pump(s) installed next to the tank L = horizontal design; S = vertical design


I 250 1

II 390 2

III 850 4

IV 1370 6

V 2100 9

VI 2900 12

VII 3800 16

VIII 4500 20

IX 5900 25

X 6900 30

C

139

Steam Powered Condensate Return Tank KH

ApplicationCondensate tanks are used to collect the condensate from steamprocessors or flash vessels. From the tank the condensate is returned to the main condensate tank ordeaerator with the aid of level-controlled booster steam.

Steam-powered condensatereturn unit KH...The standard version is suitable forcondensate flowrates of up to 10 t/hand a max. service pressure of 13 bar g.

Tank made of steel type S235JRG2 (RSt 37-20) or of P265 GH (H II),inside: untreated, outside: anti-corrosion coating.Associated valves and equipmentsuch as pressure gauge assembly,level electrode and control forautomatic booster steam supply, non-return valves.Completely assembled, interconnected and equipped withcounter-flanges, bolts and gaskets.

For larger condensate flowrates use our condensate recovery and returnsystems.

Other tank and valve materials available on request.

Volume Pumping Booster PumpSize capacity steam capacity

l m3/h pressure bar

KH 13-2 50 2 13 9.10

KH 13-3 75 3 13 9.10

KH 13-5 100 5 13 9.10

KH 13-10 390 10 13 9.10

140

Steam Powered Condensate Return Tank FPS 14

ApplicationCondensate tanks are used to collect the condensate from steamprocessors or flash vessels. From thetank the condensate is returned to themain condensate tank or deaeratorwith the aid of level-controlled boostersteam.

Steam-powered condensatereturn unit type FPS 14...The condensate is returned to themain condensate tank with the aid ofbooster steam, without electric power.The standard version of the FPS 14 issuitable for condensate flowrates of 6 t/h and a max. service pressure of 13 bar g.

The discharge capacity decreaseswith rising back pressure. The tank ismade of steel type S235JRG2 (RSt37-2) or of P265GH (H II), inside:untreated, outside: antirust paint, and equipped with non-return valves.Completely assembled and interconnected, inclusive of counter-flanges, bolts and gaskets.

For larger condensate flowrates use our condensate recovery and returnsystems.

Other tank and valve materials available on request.

Volume Pumping Max. admissible PumpSize capacity service pressure capacity

l m3/h barg bar

FPS 23-13 75 3.00 13 9.00

FPS 14-10 100 5.00 10 7.00

FPS 14-13 100 6.30 13 9.00

For more information on booster steam pressure, capacities anddischarge head refer to data sheet.

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141

Desuperheating Plants

ApplicationHeating installations in all industries

Heating of drying calenders in thepaper industry

Heating of boiling pans in thefoodstuff industry

Heating of cable presses

Radiant panels for hardwareproduction in the electrical industry

Steam moistening plants in the textile industry

System DescriptionSystem1 Injection cooler with

fixed jet orificesThe cooling water is injected throughspecial jet orifices. The amount isadjusted by a control valve mountedupstream of the desuperheater.The type and number of nozzles aredictated by the operating data. Theinternals of the pipe installed downstream of the equipment prevent temperature shocks at theexternal pipe.

System 2 Injection cooler with binary unit

Cooling water and atomizer steam are injected through a jet. The kineticenergy of the steam is used foratomizing the water. The atomizer-steam pressure has to be at leasttwice as high as the steam pressure.The cooling water can be “cold”, sinceit is preheated by the atomizer steam.

System 3 Water-bath desuperheaterSuperheated steam is injected into thewater contained in the desuperheater.The heat of the superheated steam isgiven up to the water. The steamproduced is conducted through steamseparating units and reaches a steamcontent of more than 98 %.

System 1

System 2

System 3

Injection cooler with fixed jet orifices

Steamoutlet

Injection cooler with binary unit

Water-bath desuperheater

Electric temperature control

Coolingwaterinlet

Steaminlet

Pressure reducing stationDrain

Cooler withequipment

Electric pressure regulation

Controller URR 3

Control valve

Control valve

Atomizer steam

Cooling water

Super-heated steam

Steam outlet

Steam inlet

Pressurereducingstation

Desuper-heater

Waterlevelcontrol

Coolingwater

Pumpunit

Drain

Criteria for System Selection1. What is the ratio between minimum

and maximum steam quantity in thecontrol range?

2. Is booster steam available at anappropriate pressure?

3. What is the pressure and thetemperature of the available coolingwater?

4. How close must the temperature ofthe desuperheated steam be to thatof saturated steam?

Questions concerningSystem Design

1. Maximum steam flow at inlet?2. Minimum steam flow at inlet?3. Maximum service pressure?4. Maximum temperature at inlet?5. Standard temperature at inlet?6. Temperature at outlet?7. Saturated-steam temperature?8. Temperature of injected cooling

water?9. Injected cooling-water flow?

10. Cooling-water pressure at cooler?11. Pump pressure?12. Design pressure?13. Design temperature?14. Length of installation?

Technical Data System 1 System 2 System 3

Pressure rating [bar] 32 32 32

Maximum temperature [°C] 450 450 390

Cooling water pressure above steam pressure [bar] 5 > Steam > Steam

Steam flowrate [t/h] 100 100 15

Steam flow ratio 1 : 10 1 : 10 1 : 100

Set point above saturation temperature [K] 5 3 – 5 –

Higher pressures, temperatures and steam flowrates available on request.

142

Steam regenerators with self-acting heating-steam controlInstallation of compact design with manual intermittent/continuous blowdown control, basic equipment, electric feedwater supply control withsolenoid valve. Technical specifications: Feedwater quality 1) < = 5 µS/cm. Max. heating steam pressure: 6 bar, max. pure steam pressure: 4 bar.

Steam Regenerators

ApplicationSteam regenerators are used toproduce saturated steam for asecondary system from steam orpressurized hot water. Pure steam, without any contaminants that might be detrimental to health such as hydrazine, is produced.

Steam regeneratorPure steam

Condensate

Fee

dwat

er

Hea

ting

stea

m

Inte

rmitt

ent/c

ontin

uous

blow

dow

n

Standard Installation

Steam regenerators with electric heating-steam controlInstallation of compact design with automatic intermittent/continuous blowdown control, basic equipment, electric feedwater supply control withsolenoid valve. Technical specifications: Feedwater quality 1) < = 5 µS/cm. Max. heating steam pressure: 6 bar, max. pure steam pressure: 4 bar.

Steam regenerators are thereforeespecially suited for sterilizingequipment in hospitals, steaming anddrying chambers in the foodstuff industry, and for the production ofdistillates.

Pure steam ∅∅ Overall Max. design Max. designType flowrate mm length pressure/temperature pressure/temperature

kg/h mm primary bar/°C secondary bar/°C

GRDEm-S 1 75 406 2600 13/200 6/200

GRDEm-S 2 250 508 3500 13/200 6/200

GRDEm-S 3 450 609 3600 13/200 6/200

GRDEm-S 4 700 711 3800 13/200 6/200

Technical Data (standard)

Service pressure primary [bar] 32

Service temperature primary [°C] 250

Service pressure secondary [bar] 13

Service temperature secondary [°C] 200

Capacity range [kW] 5000

Feedwater quality1) [µS/cm] < = 5

Boiler water quality1) [µS/cm] < =100

Steam regenerators for higher pressure/temperature ratings and larger capacitieson request.

Pure steam ∅∅ Overall Max. design Max. designType flowrate mm length pressure/temperature pressure/temperature

kg/h mm primary bar/°C secondary bar/°C

GRDEe-S 1 75 406 2600 13/200 6/200

GRDEe-S 2 250 508 3500 13/200 6/200

GRDEe-S 3 450 609 3600 13/200 6/200

GRDEe-S 4 700 711 3800 13/200 6/200

1) Recommended conductivity value at 20 °C. EN 285

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143

Technical Data (Standard)

Feedwater Deaerating Plants

ApplicationTo avoid corrosion damage to steamboiler plants, the content of aggressive gases, such as oxygenand carbon dioxide, in the feedwatermust be as low as possible. The German Technical Supervisory Association (VdTÜV) has issueddirectives concerning boiler feedwaterquality which are applied by Germanboiler manufacturers when giving awarranty on their boilers.Thermal deaeration in addition tochemical deaeration is very importantfor maintaining the required feedwaterquality.

Recommendation:For quality of soft water:Concentration of chloride approx. 50 mg/lConductivity approx. 250 µS/cm

Max. service Max. service Capacity Materials Residual oxygenpressure temperature range (DIN reference)

S235JRG2 (RSt 37-2)0.5 bar 111 °C 0.5 – 120 m3/h

1.4571< 0.02 mg/l

Higher pressures on request

144

Flash Vessels Typ VD 11, VD 12, VD 13

Flash Vessels Systems Typ VD 23 und VD 26

ApplicationCondensate flash vesselCondensate flash vessels can beused in all steam plants wherecondensate from steam processors is reduced to a lower pressure, sothat flash steam is formed by revaporization. In the flash vessel thesteam is separated from the water,and then fed into a low-pressuresteam system. The condensateremaining in the flash vessel isdischarged into a condensate tank

Blowdown flash vesselBlowdown flash vessels are used if the flash steam formed downstreamof continuous blowdown valves is tobe utilized.

Blowdown receiverIn a blowdown receiver the sludgeand water mixture withdrawn from theboiler by the intermittent blowdownvalve is separated into flash steamand condensate (residual blowdown).

Pressure-relief valveWhen pressure-relief valves of steamgenerators blow off, flash steam isformed which is discharged toatmosphere by a blow-off line. For reasons of safety, to avoidscalding of personnel and damage to equipment by hot water dischargedthrough the blow-off line, a flashvessel is installed between pressure-relief valve and blow-off line where steam and water areseparated.

Technical Data

Condensate Flash Vessel

Flash steam outlet

Application downstream of a pressure-relief valve

Blowdown flash-vessel system

Condensate from H.P. user

Drain

to condensate tank

Gas balance pipe

Flash steam

Pressure reliefvalve

Hot water

Boiler

Water

Feedwater-tank with deaerator

Live-steam supply

Blowdown flash vesselResidual blowdowncooler

Steam boiler

Continuousblowdownvalve

Intermittentblowdown

valvefrom

feedwater tankPulse from intermittent blowdown valve

Cooling water

Blowdown receiver

Type Service Service Condensate Volume Materialpressure [bar] temperature [°C] flowrate [t/h] [l] (DIN reference)

VD 11 4 200 1.2 to 40 50 – 1400S235JRG2 (RSt 37-2) /

VD 12 8 250 1.2 to 40 50 – 1400

VD 13 13 250 1.2 to 40 50 – 1400P265GH (HII)

VD 23-0.3 13 200 0.3 15 S235JRG2 (RSt 37-2) /

VD 23-1 13 200 1.0 15 GG 25

VD 26-0.2 32 250 0.2 15 P265GH (H II) /

VD 26-0.7 32 250 0.7 15 GS-C 25

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145

Blowdown Receiver (Mixing Cooler) VDM

DescriptionMixing coolers are blowdown receivers used to cool hot wastewater that can no longer be used forheat recovery and is thereforedischarged into a pit or drain.

ApplicationProcess plants where contaminated,hot waste water is being formed.

Steam boiler plants where the blow-down is cooled with untreated water.

Mixing coolers for vapours.

Technical Data

Mixing cooler with cooling-water control and, if requested, additional flash-steam condensation

Drain

Flash steam dischargeor vent

Cooling water

Thermostat

Hot waterfrom intermittent/continuousblowdown,overflow etc.

Mixed cooled water to drain

Max. service Max. Capacity Materialpressure temperature range

S235JRG2 (RSt 37-2)

P265GH (H II)0.5 bar 111 °C up to 15 t/h

1.4541

1.4571

146

DescriptionThe condensate dampening potprovides a cushioning effect toneutralize waterhammer. The condensate is discharged without noise.

ApplicationSteam and condensate systems.

Condensate Dampening Pot ED

Technical Data

Condensate Dampening Pot ED

Inlet

Outlet

Drainconnection

Steam main = 3 bar

Condensate main = 0.25 bar

Steam trap

Heat exchanger

Condensatedampeningpot

Passage or door frame

1.25 bar

Service Related Capacity Material Volumepressure temperature range [l]

18 bar 250 °C up to 15 t/h S235JRG2/ 4 to 50P265GH

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147

Air / Steam Driers and Purifiers TD/TP(Steam Separators)

DescriptionSteam separators are used to removecondensate and dirty water carry-overfrom steam. By this means trouble-free operation and a long service lifeof the heat exchanger and steamconsumer is obtained.

ApplicationDownstream of steam boilers andsteam-generating units.

Between boiler and superheater.

In steamlines ahead of steammanifolds.

In district-heating lines and flashsteam lines.

Technical Data

Upstream of turbines, steam engines,steam tools.

For direct heating with steam.

In spray-vapour humidifier systemsfor air-conditioning plants.

Steam drier downstream of a steam generator

Steam drier upstream of a heat exchanger

Steam drier upstream of a turbine

Steam drier(separator)

Steam generator

Turbine

Heat exchangers

Desuperheater

Steam generator

Heatexchanger

Steam drier (separator)

Steam drier

(separator)

Steam generator

Pressure rating Nominal sizes DN Materials

St 37.0 / St 35.8

PN 16 S235JRG2 (RSt 37-2)

PN 40 P265GH (H II)

PN 63 15 to 500 mm 16 Mo 3

PN 100 13 Cr Mo 4-5

PN 160 V 2 A (1.4541)

V 4 A (1.4571)

148

Condensate flowrate

Condensate temperature

Condensate pressure

Tank design:

❏ Cylindrical ❏ Rectangular ❏ Horizontal ❏ Vertical

Condensate pumps:

Qty.

Discharge head

Mains voltage

❏ Horizontal pump ❏ Vertical pump

Questionnaire for preparing offers forGESTRA Condensate Recovery and Return Systems

GESTRA Fax: ++49 (0) 421 - 35 03-149

Typical Installations

Open System

Condensate receivertank of cylindricaldesign type SD L (S)with high-pressurecentrifugal pump(s)installed next to tank L = horizontal designS = vertical design

Condensate tank of rectangulardesign type SDR A with high-pressure centrifugal pump(s)installed next to tank

Closed System

Condensate receiver tankof cylindrical design typeSD L (S) with horizontal-type centrifugal pump(s)installed next to tank L = horizontal designS = vertical design

Discharge control:

Level electrode ❏ yes ❏ no

Supply options:

❏ Accessories ❏ Accessories assembleddetached and interconnected

❏ No accessories

Condensate tank made of:

❏ Steel ❏ Stainless steel grade 1.4541(X6CrNiTi18-10)

❏ Stainless steel grade 1.4571(X6CrNiMoTi17-12-2)

Name/Title

Company Name

Telephone

Fax

E-mail

Date

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149

GESTRA Fax: ++49 (0) 421 - 35 03-149


System 1 Injection cooler with fixed jet orifices

System 3 Water-bath desuperheater

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Questionnaire for preparing offers forGESTRA Desuperheating Plants

Reducing of steam pressure

❏ yes ❏ no

If yes, ❏ Self-acting control ❏ Electric

❏ Electro-pneumatic

Steam flowrate

Steam pressure:

P1 bar/psi upstream of pressure reducing station

P2 bar/psi downstream of pressure reducing station or when no more pressure reduction takes place

P3 bar/psi downstream of cooling station

Steam temperature:

t1 or t2 °C upstream of pressure reducing station or

when no more pressure reduction takes placet3 °C downstream of cooling station

Cooling fluid:

P4 bar/psi upstream t4 °C upstream of coolerof cooler

if not fitted with pump ❏ yes ❏ no

Water-bath desuperheater ❏ t3 = ts

Injection cooler ❏ t3 = ts + > 5° controllable

Supply options for water-bath desuperheater:

❏ Accessories detached ❏ Accessories assembled

Optional equipment:

❏ High-temperature alarm ❏ Excess temperature protection

❏ Low-water level alarm

Special requirements concerning cooler:

Material ❏ Steel ❏ Stainless steel grade 1.4571(X6CrNiMoTi 17-12-2)

150

GESTRA Fax: ++49 (0) 421 - 35 03-149


Steam regenerator

Pure steam

Condensate

Fee

dwat

erH

eatin

g st

eam

Inte

rnitt

ent/c

ontin

uous

boile

r bl

owdo

wn

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Questionnaire for preparing offers forGESTRA Steam Regenerators

Thermal output

Service data (primary)

Medium: ❏ Steam ❏ Hot water ❏ Thermal oil

Pressure bar/psi Temperature °C Flowrate

Services data (secondary)

Medium: ❏ Steam

Pressure bar/psi Temperature °C Flowrate

Control (pressure side) ❏ Self-acting ❏ Electric ❏ Pneumatic

Feedwater control ❏ Solenoid valve or motorized valve ❏ Feedwater pump

Application

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151

Questionnaire for preparing offers forGESTRA Deaerating Plants

GESTRA Fax: ++49 (0) 421 - 35 03-149

Typical Installation

Condensate

Boi

ler

blow

dow

n

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Boiler capacity

Make-up water flowrate Temperature approx. °C

Steam pressure

Service pressure (deaerator)

Make-up feed control ❏ Electric ❏ Pneumatic

Pressure control ❏ Self-acting ❏ Electric ❏ Pneumatic

152

Questionnaire for preparing offers forGESTRA Flash Vessel Systems

GESTRA Fax: ++49 (0) 421 - 35 03-149


Flash-steam outlet

P2

Condensate fromH.P. user

P1

Drain

to condensate tank

P3

Gas balance pipe

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Pressure p1 upstream of steam trap at steam user P1 = bar(a)/psi(a)(boiler pressure at flash vessel)

Pressure p2 of flash steam at flash outlet to low pressure system P2 = bar(a)/psi(a)

Pressure p3 downstream of steam trap after the flash vessel P3 = bar(a)/psi(a)

Condensate flowrate to flash off m = kg/h

Flash vessel material

Please state all pressure specifications in bara or psia!

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153

Questionnaire for preparing offers forGESTRA Blowdown Receiver (Mixing Cooler)

GESTRA Fax: ++49 (0) 421 - 35 03-149


Mixing cooler with cooling-water control and, on request, with additional flash-steam condensation

Drain

Flash-steam dischargeor vent

Cooling water

Thermostat

Hot water fromblowdown, overflow

etc.

Mixed cooled water to drain

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Hot-water flowrate

Hot-water temperature

Hot-water pressure

Cooling-water temperature

Cooling-water pressure

Material

❏ Steel ❏ Stainless steel grade 1.4571 (X6CrNiMoTi 17-12-2)

Application

❏ Boiler blowdown ❏ Other

154

Questionnaire for preparing offers forGESTRA Heat Exchanger

GESTRA Fax: ++49 (0) 421 - 35 03-149


1

GESTRA Heat Exchanger controlled from the condensate side as a function of theoutside temperature and safety shut-down controlled from the steam side

GESTRA Heat Exchanger controlled from the steam sidewith constant temperature of the secondary circuit

Name/Title

Company Name

Telephone

Fax

E-mail

Date

Thermal output

Service data (primary)


Pressure bar/psi Temperature (in) °C Flowrate

Temperature (out) °C

Material: ❏ Steel ❏ Stainless steel grade 1.4571(X6CrNiMoTi 17-12-2)

Service data (secondary)


Pressure bar/psi Temperature (in) °C Flowrate

Temperature (out) °C

Material: ❏ Steel ❏ Stainless steel grade 1.4571(X6CrNiMoTi 17-12-2)

Control ❏ Self-acting ❏ Electric

❏ Pneumatic

Controlled from the condensate side ❏

Design ❏ horizontal tube bundleheat exchanger

❏ vertical tube bundleheat exchanger

❏ completely welded plate-typeheat exchanger

Hot water inlet

Heating steam

Hot water return

Condensate Steam inlet

Heating circuit return

Condensate outlet

Heating circuit supply

C

155

Questionnaire for preparing offers forGESTRA Steam Separator

Name/Title

Company Name

Telephone

Fax

E-mail

Date

GESTRA Fax: ++49 (0) 421 - 35 03-149Medium: ❏ Saturated steam ❏ Superheated steam ❏ Air ❏ Gas

Flowrate: m= kg VN = Nm3/h

Service pressure: p = bara/psia

Service temperature: t = °C

Approved pressure: p = barg/psig

Approved temperature: t = °C

Inspection and certification:

Connections: Inlet/Outlet: DN/PN

Condensate outlet: DN/PN

Material: ❏ S235JRG2 ❏ P265GH ❏ 16 Mo 3(RSt 37-2) (H II)

❏ 1.4541 ❏ 1.4571 ❏ (V2A) (V4A)

Connection arrangements: ❏ ❏ ❏ ❏ ❏

Our Mobile Testing Station

For more information please contact ++49-421-35 03 311.

The mobile testing station will comedirectly to your plant accompanied byqualified and experienced engineersfrom GESTRA who will give practicaldemonstrations of steam andcondenstate applications. All weneed from you is steam, water andelectricity.

D

Page

Technical Advice and Training Seminars .............................................................. 158

Useful Information / Conversions .......................................................................... 159

Useful Conversions ................................................................................................ 160

Information ATEX Directive 94/9/EC ...................................................................... 161

Information on Pressure Equipment Directive (PED) .................................. 162 – 165

Combined Imperial and S. I. Steam Tables .................................................. 166 – 167

DIN Material Reference Chart ................................................................................ 168

Design of GESTRA Valves ......................................................................................169

Technical Literature ................................................................................................ 170

Academy

158

❏ Optimization of steam and condensate systems for cost-efficient and trouble-freeoperation

❏ Solving practical problems, exchangingexperience and active presence of theparticipants

❏ Various installation examples based on actual projects will illustrate problems and their respective solutions

❏ Evaluation of energy-saving measures

The seminars are rounded off with some practi-cal demonstrations given at our in-house testingfacilities:

❏ Open steam system

❏ Closed steam system

❏ Transparent testing and demonstration facility

❏ Steam boiler demonstration facility

GESTRA-Diplom

GESTRA AG

Münchener Straße 77 · 28215 Bremen · Germany

Fax ++49 - 421- 35 03 - 142Tel. ++49 - 421- 35 03 - 279; -311

Technical Advice and Training Seminars

The GESTRA Academy offerstraining programs and projectmanagement assistance fortechnical staff to help implementfuture-oriented and complexprojects in all fields of steam, condensate and process fluidcontrol.

The tremendously fast progress of technology combined with the recenteconomic developments are placingever greater demands on the trainingand qualification of employees andmanagers alike. A company’s wealth of technical knowledge and the know-how of itspersonnel in particular constitutenowadays the most important non-material asset of an enterprise. In many seminars held over the lastfew years our customers have often expressed a keen interest inauthoritative theoretical and practicalsupport.

To assist with this objective, theGESTRA Academy was set up inorder to provide comprehensivetechnical literature and conductworkshops, seminars andpersonalized consulting and trainingprograms.

Our hands-on seminars place greatemphasis on the exchange ofexperience and the active presenceand collaboration of the participants.Various practical examples of projectsalready implemented in different industries will be considered in orderto outline the problems involved andtheir solutions.

The focus of the training seminars ison the following subjects:

■ Fundamental principles of steamand condensate systems

■ Sizing and design of pipework

■ Efficient utilization of energy insteam systems

■ Boiler automation and operation(without constant supervision for 72 hrs)

and other related topics and practicalexamples.

GESTRA training seminars are geared to the needs of technical staff working forengineering companies, project-, design- and plant engineers, foremen,interested specialists and personnel responsible for commissioning, servicing andmaintenance.

Module 1: Steam BasicsModule 2: Design and Function of Steam TrapsModule 3: Boiler Plant Operation and Equipment

Objective

Certificate

Venue

Hotline

The seminar is divided into three main topics:

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159

Useful Information / Conversions

Useful InformationAbbreviations used throughout this catalogue:DN – Dimension, nominal. The nominal size of a pipe or fitting in mm or inch, if stated.PN – Pressure, nominal. The nominal pressure rating

(Maximum cold working pressure) in bar.ΔPMX – Maximum differential pressure (inlet pressure minus outlet pressure)PMA – Maximum allowable working pressureTMA – Maximum allowable working temperaturePAMAX – Maximum service pressureBSP – British Standard Pipe (DIN ISO 228)NPT – American Standard Taper Pipe Thread (National Pipe Tapered)

ConversionsIn this catalogue the International System of Units (SI) is applied. The following conversions into the Imperial System for the units used in this catalogue might be useful:

SI Units Imperial Units Conversionbar psi 1 bar = 14.504 psi°C °F 1°F = °C x 9/5 + 32kg/h lb/h 1 kg/h = 2.204 lb/hl/s gpm 1 l/s = 13.22 igpm

= 15.85 usgpmkv Cv Cv = 1.13 kv (usgpm)

Pressure-Temperature RatingsIt is not possible to give direct conversions between DIN and ANSI ratings, and space does not permit a detailed comparison. When selecting valves against specific duties, allservice data must be fully considered. The following table is provided to guide the reader who may not be familiar with the general relationship between DIN and ASME ratings.

DIN Rating ASME Class Equivalent nominal sizesPN 10

125 lbPN 16

150 lbPN 25PN 40

300 lbPN 63PN 100 600 lb

900 lbPN 160PN 250 1500 lbPN 320PN 400

2500 lbPN 630

DN 8 mm = 1/4"10 mm = 3/8"15 mm = 1/2"20 mm = 3/4"25 mm = 1"32 mm = 11/4"40 mm = 11/2"50 mm = 2"65 mm = 21/2"80 mm = 3"

100 mm = 4"125 mm = 5"150 mm = 6"200 mm = 8"

DN 300 mm = 12"350 mm = 14"400 mm = 16"450 mm = 18"500 mm = 20"600 mm = 24"700 mm = 28"750 mm = 30"800 mm = 32"900 mm = 36"

1000 mm = 40"1050 mm = 42"1200 mm = 48"

160

Useful Conversions

MASS1 kilogramme, kg = 2.204 pound, lb1 metric ton, tonne = 1000 kilogramme, kg

LENGTH1 foot, ft = 0.3048 metre, m1 inch, in = 25.4 millimetre, mm1 metre, m = 3.28 foot, ft

= 39.37 inch, in

AREA1 square inch, in2 = 645.2 square millimetre, mm2

1 square metre, m2 = 10.76 square foot, ft2

= 1550 square inch, in2

= 1.196 square yard, yd2

VOLUME1 cubic inch, in3 = 16387 cubic millimetre, mm3

1 cubic foot, ft3 = 0.0283 cubic metre, m3

= 6.24 imperial gallon, gal= 28.32 litre, l

1 U.S. gallon, US gal = 0.833 imperial gallon, gal

FOR WATER1 cubic foot of water weighs 62.4 pound1 imperial gallon of water weighs 10 pound1 cubic metre of water weighs 1000 kilogramme1 litre of water weighs 1 kilogramme

PREFIXESsymbol factor

tera T 1012

giga G 109

mega M 106

kilo k 103

hecto*) h 102

deca*) da 10

deci*) d 10-1

centi*) c 10-2

milli m 10-3

micro u 10-6

nano n 10-9

pico p 10-12

femto f 10-15

atto a 10-18

*) These prefixes are not recommended for scientific or engineering use.

PRESSURE1 bar = 14.504 pound-force/sq. inch, lbf/in2

= 100 kilonewton/sq. metre, kN/m2

= 1.020 kilogramme-force/squarecentimetre, kgf/cm2

1 foot of water = 0.4332 pound-force/sq. inch, lbf/in2

= 0.8824 inch of mercury, in Hg= 29.87 millibar, mbar

1 kilogramme-force/sq.= 14.223 pound-force/sq. inch, lbf/in2

centimetre, kgf/cm2 = 98.07 kilonewton/sq. metre, kN/m2

= 0.9807 bar

1 kilonewton/sq.metre, = 0.145 pound-force/sq. inch, lbf/in2

kN/m2, (kilopascal, kPa) = 0.0102 kilogramme-force/squarecentimetre, kgf/cm2

= 0.01 bar

1 pound-force/sq.inch, = 6.895 kilonewton/sq. metre, kN/m2

lbf/in2 (psi) = 0.0703 kilogramme-force/squarecentimetre, kgf/cm2

= 0.0689 bar

1 standard = 14.696 pound-force/sq. inch, lbf/in2

atmosphere, atm = 1.013 bar

1 torr = 1 millimetre of mercury, mm Hg= 0.0193 pound-force/sq. inch, lbf/in2

= 1.333 millibar, mbar

FLOWRATE1 cubic foot/minute, = 1.698 cubic metre/hour, m3/hft3/min

1 litre/second, l/s = 13.22 imperial gallon/minute, gal/min= 793 imperial gallon/hour, gal/h

For Gases1 standard cubic = 1.605 normal cubic metre/hour,foot/min, SCFM Nm3/h (measured at 1 atm, 0°C)(measured at 1 atm, 60°F)

DENSITY1 kilogramme/cubic = 1 gramme/litre, g/lmetre, kg/m3 = 0.0624 pound/cubic foot, lb/ft3

1 pound/cubic foot, = 16.018 kilogramme/cubic metre, kg/m3

lb/ft3

ENERGY & POWER1 British thermal = 1.055 kilojoule, kJunit, Btu

1 therm = 105 British thermal unit, Btu

1 British thermal unit/ = 2.326 kilojoule/kilogramme, kJ/kgpound, Btu/lb

1 kilocalorie, kcal = 4.187 kilojoule, kJ

1 kilowatt, kW = 1 kilojoule/second, kJ/s= 1.341 horsepower, hp= 0.948 British thermal unit/second,

Btu/s

D

161

GESTRA Information on ATEX Directive 94/9/EC

Equipment and protective systems intended for use in potentially explosive atmospheres “ATEX” Directive 94/9/EC is a so-called “New Approach” Directive which provides thetechnical requirements to be applied to equipment intendedfor use in potentially explosive atmospheres. The Directivehas been mandatory in all member states of the EU from 1st

July 2003.

Steam traps:

Type AK, BK, DK, MK, SMK, TK, UBK, UC (Universal Connec-tor), UNA, VK.

Non-return & check valves:

Type BB, CB, MB, RK, SBO

Self-acting controller:

Type BW, CW

Strainer:

Type SZ

The equipment listed above has been examined regarding itssuitability for application in potentially explosive atmospheresas defined by Directive 94/9/EC.

Based on Annex II, section 1.3 the equipment does not haveits own source of ignition and is therefore excluded from thescope of this Directive according to Art. 1, Paragraph (3)a).

In compliance with Art. 10, Paragraph 3 the equipment is notentitled to bear the CE marking in connection with Directive94/9/EC. Consequently a declaration of conformity in accor-dance with 94/9/EC must not be issued.

When using the equipment according to its intended purpose as specified in the corresponding data sheetsand installation instructions issued by GESTRA the application of the above-mentioned equipment in potentially explosive atmospheres is not limited since the equipment does not have its own source of ignition.

The equipment listed above is suitable for application in thefollowing areas:

Zone 0, 1, 2 (gases) and 20, 21, 22 (dusts)Equipment group IICategory 1, 2, 3

Note

Some of the electrical and non-electrical devices not listedhere can be used in potentially explosive atmospheres.

Please contact us if you have questions regarding the use ofGESTRA equipment not indicated on this page in potentiallyexplosive environments.

Please note that some GESTRA devices – in accordance withthe Pressure Equipment Directive (PED) and ATEX – bear theCE marking and have a Declaration of Conformity. For moreinformation refer to the corresponding data sheets andinstallation instructions.

162

EC Pressure Equipment Directive (PED) No. 97/23CE Marking for GESTRA Series Equipment

Pressure CL acc. to name plate

CE marking Fluid

yes Modulegr. gr.1 2

*) DN 150 = PN 10

Fluid group 1: hazardous substances, poisonous, flammableFluid group 2: non-hazardous substances, e.g. water, steam, air

replaces MK 25/2S3 DN 25 (740)replaces MK 25/2S DN 25 (734)

in conjunction with UC/UCY

in conjunction with UC/UCY

BK 35A / 7 in conjunction with UC/UCY

Valve /Type Type no. PN/CLSize (DN)

10/15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200

A1 - Steam Traps

X AK 45 1) 845 40 A3.3 A3.3 A3.3X H X BK 15 716 40 CE CEX H X BK 15 716 CL300 CE CE

X BK 15 716 CL150 A3.3 A3.3X H X BK 27N (incl. Fl. CL300) 712 40 A3.3 A3.3 A3.3 CE CE

X H X BK 27N 712 63 A3.3 A3.3 A3.3 CE CE(incl. Fl. CL400/600)X BK 28 713, 870 100/CL600 A3.3 A3.3 A3.3X BK 29 714, 871 160/CL900 A3.3 A3.3 A3.3X BK 35, 35A / 7 (Swivel) 707, 846 40/CL300 A3.3 A3.3 A3.3

X X BK 45 1) 708 40 A3.3 A3.3 A3.3X BK 46 (incl. Fl. CL300) 711 40 A3.3 A3.3 A3.3X BK 212 715, 872 630/CL2500 A3.3 A3.3 A3.3X DK 36A / 7 (Swivel) 846 CL300 A3.3 A3.3 A3.3X DK 45 877 40 A3.3 A3.3 A3.3X DK 47, 57 878, 879 63/CL600 A3.3 A3.3 A3.3

X H X GK 11 750 10/16 CE CE CE CE CE*X GK 21 750 16 A3.3 CE CE CE CE CE*X MK 20 720 6 A3.3 A3.3 CE CE CE CE CE*

X H X MK 25/2 729 40 CE CEX H X MK 25/2 729 CL300 CE CE√ X MK 25/2 729 CL150 A3.3 A3.3

(X) H X MK 25/2S 734 40 A3.3 CE CE(X) H X MK 25/2S 734 CL300 A3.3 CE CE

X MK 25/2S 734 CL150 A3.3 A3.3 A3.3X MK 25/2S3 740 40 A3.3X MK 35A / 7 (Swivel) 846 CL300 A3.3 A3.3 A3.3X MK 35/2S 735 40/CL300 A3.3X MK 35/2S3 736 40/CL300 A3.3X MK 35/3 724 25 A3.3 A3.3X MK 36/51 749 – A3.3 A3.3X MK 37/1 881 63 A3.3 A3.3 A3.3X MK 45/45A 1) 725 40 A3.3 A3.3 A3.3

(X) H X TK 23 742 16 A3.3 CE CE CEX H X TK 24 743 25 CE CE CE CE

X SMK 22 885 10 A3.3 A3.3 A3.3X UBK 46 (incl. Fl. CL300) 886 40 A3.3 A3.3 A3.3X UC, UCY Universal Connector 847 CL300 A3.3 A3.3 A3.3X UNA 14 (incl. CL 150) 851, 852 25 A3.3 A3.3 A3.3X UNA 14P 853, 854 25 A3.3 A3.3 A3.3X UNA 16 855, 856 40/CL 150 A3.3 A3.3 A3.3

X X UNA 16A Stainless steel / SS 857, 858 40/CL 150 A3.3 A3.3 A3.3X UNA 23 770, 771 16 A3.3 A3.3 A3.3 A3.3 A3.3

(X) H X UNA 25 798, 799 40 A3.3 A3.3 A3.3 CE CE(X) H X UNA 26 (incl. Fl. CL300) 780, 781 40 A3.3 A3.3 A3.3 CE CE

X UNA 26 780 CL150 A3.3 A3.3 A3.3 A3.3 A3.3(X) H X X UNA 26h Stainless steel / SS 786 40 A3.3 A3.3 A3.3 CE CE(X) H X X UNA 26h Stainless steel / SS 786 CL150 A3.3 A3.3 A3.3 CE CE

(X) H X UNA 27h 820 63 A3.3 CE CE(incl. Fl. CL400/600)(X) H X UNA 27h 820 CL300 A3.3 CE CE

H X X UNA 38 791, 792 100 A3.3 A3.3 CE CE(X) H X UNA 39 814 160 A3.3 A3.3 CE(X) H X UNA 39 (incl. Fl. CL600) 814 100 A3.3 A3.3 CEX H X UNA Special Type 62 800 16 CE CE CEX H X UNA Special 801 25 CE CE CEX H X UNA PN 801 25 CE CEX H X UNA Special 804 63 CE CE CEX H X UNA Special 804 40 CE CE CE

X VK 14 041 16 A3.3 A3.3 A3.3 A3.3 A3.3 CE CE CE(X) H X VK 16 (incl. Fl. CL300) 042 40 A3.3 A3.3 A3.3 CE CE

X VK 16 042 CL150 A3.3 A3.3 A3.3 A3.3 A3.3 CE CE CEX VKE 16 048 40 A3.3 A3.3 A3.3

(X) H X VKE 16a 044 40 A3.3 A3.3 A3.3 CE CE1) incl. Fl. CL 150 + CL 300

D

163


CEmarking Fluid

yes Modulegr. gr.1 2




10/15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200

A2 - Check Valves

X H X X BB 12A / 22A 149 10 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 14A / 24A 149 16 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 15A / 25A 149 25/CL150 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 16A / 26A 149 40/CL300 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 17A 149 63 CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 18A 149 100/CL600 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 19A 149 160/CL900 CE CE CE CE CE CE CE

X H X X BB 12C / 22C 143 10 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 14C / 24C 143 16 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 15C / 25C 143 25/CL150 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 16C / 26C 143 40/CL300 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 17C 143 63 CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 18C 143 100/CL600 CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X X BB 19C 143 160/CL900 CE CE CE CE CE CE CE

(X) H X BB 11G / 21G 140 6 A3.3 CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X BB 12G / 22G 140 10 CE CE CE CE CE CE CE CE CE CE CE CE CE CE CE

X H X BB 14G / 24G 140 16 CE CE CE CE CE CE CE CE CE CE CE CE CE CE

(X) H X CB 14 138 16 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X CB 24S 132 16 A3.3A3.3A3.3 CE CE CE CE CE CE X

X H X X CB 26 133 40 CE CE CE CE CE CE CE CE CE X

X H X X CB 26a 134 40 CE CE CE CE CE CE CE CE CE

X MB 14 091 16 A3.3A3.3A3.3A3.3A3.3A3.3

X H X X NAF-Check526520/530+

448 25 CE CE CE CE CE528520/530

X H X X NAF-Check 526620/630 448 40 CE CE CE CE CE CE CE CE CE

X H X X NAF-Check 526822/832 448 100 CE CE CE CE CE CE CE CE CE CE

(X) H X X RK 16a 118 40/CL300 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 16b 124 40 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 16c 117 40 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 16t 125 40 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 29a 109 160/CL.. A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X) H X1) X RK 41 102 16 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X) H X X RK 44 103 16 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X) H X RK 44s 110 16 A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 49 107 160 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X) H X RK 70 095 6 A3.3A3.3A3.3A3.3A3.3A3.3A3.3A3.3A3.3A3.3A3.3 CE

(X) H X RK 71 100 16 A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE

(X) H X X RK 76 120 40 A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X X RK 86 101 40/CL300 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X) H X X RK 86a 121 40/CL300 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

X SBO 11, 21, 31086, 088,

6 A3.3A3.3090

A3 - Tank Car Valves

HWV, PV etc. A3.3 not in scope of PED

1) RK 41, DN 65-100, approved only for liquids of fluid group 1 but not for gases as specified in the PED 97/23/EC.

1.BB DIN- & ASME2.DN 800 = ASME 30"

(DN 750)

164


CEmarking Fluidyes

Modulegr. gr.1 2


10/15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200

A4 - Self Acting Temperature & Pressure Controller

(X) H X 5801 F616 270 16 A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X 5801 270 25 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

(X) H X 5801 F340/325 272 40 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

(X) H X 5801 F540 273 40 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

(X) H X 5610 F16 274 16 A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE CE

(X) H X 5610 274 25 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

(X) H X 5610 F40 275 40 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

X BW 31 032 25+40+CL150 A3.3A3.3A3.3 A3.3

(X) H X X BW 31A 033 25+40 A3.3A3.3A3.3 CE

(X) H X X BW 31A 033 CL150 A3.3A3.3A3.3 CE

X1) CW 41 035 16 A3.3 A3.3A3.3 A3.3A3.3

X1) X1) CW 41/4 035 16 A3.3 A3.3A3.3 A3.3A3.3

X CW 44 036 25 A3.3A3.3A3.3

X X CW 44k 036 25 A3.3A3.3A3.3

X Clorius L1S 235 16 A3.3A3.3A3.3

X Clorius L2S 235 16 A3.3A3.3A3.3A3.3A3.3

X Clorius L2SR, L3S 235, 239 16 A3.3A3.3A3.3A3.3A3.3A3.3

(X) X Clorius L3F 239 10 A3.3A3.3A3.3 CE

X Clorius M1F 236 16 A3.3A3.3A3.3A3.3A3.3A3.3

(X) X Clorius M1FB 236 16 A3.3A3.3A3.3A3.3 CE CE

(X) X Clorius M2F 236 16 A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE

(X) X Clorius M2FR 236 16 A3.3A3.3A3.3 CE CE CE CE CE

(X) X Clorius M3F 239 16 A3.3A3.3A3.3A3.3 CE CE CE CE CE

(X) X Clorius M3F/M3FM 239 10 A3.3A3.3 CE CE

(X) X Clorius H1F 237 40 A3.3A3.3A3.3A3.3 CE CE

(X) X Clorius H1FB 237 40 A3.3A3.3 CE CE CE CE

(X) X Clorius H2F 237 40 A3.3A3.3 CE CE CE CE CE CE CE

(X) X Clorius H2FR 237 40 A3.3A3.3 CE CE CE CE CE CE CE

(X) X Clorius H3F 239 40 A3.3A3.3 CE CE C

(X) X Clorius G1F 238 25 A3.3A3.3A3.3A3.3A3.3 CE

(X) X Clorius G1FB 238 25 A3.3A3.3A3.3 CE

(X) X Clorius G2F 238 25 A3.3A3.3A3.3A3.3 CE

(X) X Clorius G2FR 238 25 A3.3A3.3A3.3 CE

(X) X Clorius G3F 239 25 A3.3A3.3A3.3 CE

X Clorius2.05, 4.03, 4.05,

245 A3.34.10, 8.09, 8.18

A4 - Control Valves

(X) H X X V725 Foxpak 285, 286 40 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE

(X)* A1, H X ZK 29 754 40 - 160 A3.3A3.3 CE CE CE CE CE CE

(X) A1, H X ZK 210 013, 393 250 A3.3A3.3 CE CE CE

(X) A1, H X ZK 213 – CE CE CE CE CE CE CE CE CE

(X)* A1, H X ZK 313 757 – A3.3A3.3 CE CE CE CE CE CE

(X) A1, H X ZK 412 758 – A3.3A3.3 CE

(X) A1, H X ZK 513 759 – CE CE CE CE CE CE CE

(X) A1, H X ZK 610, 613 – CE CE CE CE CE CE CE CE CE CE CE

X1) for liquid fluids only

DN 15-25 = PN 40 as from 2002DN 15-25 = PN 40 as from 2002



D

165


CEmarking Fluidyes

Modulegr. gr.1 2

For special versions of GESTRA series equipment,e. g. other connection sizes, it is necessary toascertain whether the equipment must beaccompanied by the declaration of conformity andhas to bear the CE marking.

Based on GESTRA standard types, e.g. BK 28 with non-std bw-connection 60.3 x 2.9 is not considered.

A3.3 Not PED relevant or must not be CE-marked

Not part of GESTRA product range

CE Is declared conform

CE on request

(X) CE-marking depending on size

(X)* on request



10/15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200

A5 - Ball Valves, Butterfly Valves(X)* X Naval 450 40 A3.3A3.3A3.3 CE CE CE CE CE CE CE C(X) H X X NAF- Setball 445 A3.3 CE CE CE CE CE CE CE CE CE CE CE(X) H X X NAF- Duball 444 A3.3 CE CE CE CE CE CE CE CE CE CE CE CE CE CE(X) H X X NAF- Triball 447 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE CEX H X X NAF- Torex 446 CE CE CE CE CE CE CE CE CE CE

A6 - Safty ValvesX B+D X GSV 4421 300 CE CE CE CE CE CE CE CE CE CE CE CEX B+D X X GSV 4425 300 CE CE CE CE CE CE CE CE CE CE CE CEX B+D X X GSV 4422 300 CE CE CE CE CE CE CE CE CE CE CE CEX B+D X X GSV 4414 300 CE CE CE CE CE CE CE CE CE CE CE CE

A7 - Strainer(X) A X*) GSF 303 430 16* A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE(X) H X X GSF 312 - 317, 319, 320 430 16-160 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE(X) H X X GSF 332 - 334, 336 - 338 430 16-160 A3.3A3.3A3.3 CE CE CE(X) H X X GSF 341 - 348 430 6-25 A3.3A3.3A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE(X) H X SZ 26a 436 40 A3.3A3.3A3.3A3.3 CE CE CE CE CE CE CE CE

A8 - Stop Valves, Sight Glasses

(X) H X X GAV803F, 805F,

440 16, 40/25 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE* CE* CE*811, 811F*)(X) H X X GAV 806F 440 25 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE(X) H X X GAV 820F, 822F 440 40/16 A3.3A3.3A3.3 CE CE CE CE* CE* CE* CE* CE* CE*(X) H X X GSG 405 453 16 A3.3A3.3A3.3 CE CE CE CE CE CE CE CE CE CE(X) H X X GSG 424 443 16 A3.3A3.3A3.3 CE CE CE C

B - Int. & cont. Blow Down Valves - BA, BAE, MPA, PA & Boiler Electronics(X) H X X Vortex 83 WA / FA – 100 A3.3A3.3A3.3 CE CE CE CE CE CE CE

X LD 144 – 63-160 A3.3(X) H X BA / BAE 36 015, 388 40 A3.3A3.3A3.3 CE(X) H X BA / BAE 36 015, 388 CL300 A3.3A3.3A3.3 CE

X BA / BAE 36 015, 388 CL150 A3.3A3.3A3.3 A3.3X BA / BAE 210 013, 393 250 A3.3X BA / BAE 211 394 302 A3.3

(X) H X PA / MPA 46 005, 366 40 A3.3A3.3A3.3 CE CEX PA / MPA 46 005, 366 CL150 A3.3A3.3A3.3A3.3A3.3

(X) H X PA / MPA 47 (incl. Fl.CL400) 006, 367 63 A3.3A3.3A3.3 CE CE(X) H X PA / MPA 47 006, 367 CL300 A3.3A3.3A3.3 CE CE

X PA / MPA 110 002, 365 250 A3.3

X B+D – – NRG 1x-40/41 + 351/352 40-160 CE CNRS 1-40/41 +322

X B+D – – TRG 5-xx + TRS 5-6/ 265/ CE CETRS 5-7 267 + 255X B+D – – LRGT 16-1 + KS 90 377 + 266 40 CE CE

X B+D – – NRG 1x-11 + 351/357 40-160 CE CENRS 1-7 + 323X B+D – – NRG 16-36 + NRS 1-9 358 + 323 40 CE CE

X B+D – – LRG 16-40 + LRR 1-40 377 + 380 40 CE CE+ URB 1 338X H X NRG 211 350 320 CE CEX H X LRG 17-1 377 63 CE CEX H X LRG 19-1 377 160 CE CE

C - Heat Recovery Systems & VesselsX A1,G (X) X Vessels CE CE

replaces PA/MPA 26replaces PA/MPA 26replaces PA/MPA 26replaces PA/MPA 26


*) = liquids max. 10 bar

*) = GAV 811F PN 25

*) = GAV 820F + 822F PN 16

166

Combined Imperial and S. I. Steam Tables

GaugePressure

bar g psi g

AbsolutePressure

bar a psi a

SaturationTemperature

ts

°C °F

Specific EnthalpyWater Evaporation Water Evaporation

Sensible Latent Sensible Latentheat (hf) heat (hfg) heat (hf) heat (hfg)

KJ/kg kJ/kg Btu/lb Btu/lb

SpecificVolume Steam

Vg

m3/kg ft3/lb

14.5 psi = 1 bar

VA

CU

UM

VA

CU

UM

The

se f

igur

es a

re in

inch

es o

f M

ercu

ry

– 0.96 28.4 0.05 0.725 32.9 91 138 2423 59 1042 28.2 452– 0.91 27.0 0.1 1.45 45.8 114 192 2392 82 1029 14.7 236– 0.86 25.5 0.15 2.18 54.0 129 226 2373 97 1020 10.0 160– 0.81 24.0 0.2 2.90 60.1 140 251 2358 108 1014 7.65 123– 0.76 22.5 0.25 3.63 65.0 149 272 2346 117 1009 6.20 99.3– 0.71 21.1 0.3 4.35 69.1 156 289 2336 124 1004 5.23 83.8– 0.66 19.6 0.35 5.08 72.7 163 304 2327 131 1000 4.53 72.6– 0.61 18.1 0.4 5.80 75.9 169 318 2319 137 997 3.99 63.9– 0.56 16.6 0.45 6.53 78.7 174 330 2312 142 994 3.58 57.3– 0.51 15.1 0.5 7.25 81.3 178 341 2305 147 991 3.24 51.9– 0.46 13.7 0.55 7.98 83.7 183 351 2299 151 988 2.96 47.4– 0.41 12.2 0.6 8.70 85.9 187 360 2294 155 986 2.73 43.7– 0.36 10.7 0.65 9.43 88.0 190 369 2288 159 984 2.54 40.7– 0.31 9.24 0.7 10.2 90.0 194 377 2283 162 982 2.37 38.0– 0.26 7.77 0.75 10.9 91.8 197 384 2279 165 980 2.22 35.6– 0.21 6.29 0.8 11.6 93.5 200 392 2274 169 978 2.09 33.5– 0.16 4.81 0.85 12.3 95.1 203 399 2270 172 976 1.97 31.6– 0.11 3.34 0.9 13.1 96.7 206 405 2266 174 974 1.87 30.1– 0.06 1.86 0.95 13.8 98.2 209 411 2262 177 972 1.78 28.5– 0.01 0.38 1.0 14.5 99.6 211 418 2258 179 971 1.69 27.1

0 0 1.013 14.696 100 212 419 2257 180 970 1.67 26.80.1 1.45 1.11 16.1 103 217 430 2250 185 967 1.53 24.50.2 2.90 1.21 17.5 105 221 441 2243 190 964 1.41 22.60.3 4.35 1.31 19.0 107 225 450 2237 194 962 1.31 21.00.4 5.80 1.41 20.5 110 230 460 2231 198 959 1.23 19.70.5 7.25 1.51 21.9 112 234 468 2226 201 957 1.15 18.40.6 8.70 1.61 23.4 114 237 476 2220 205 954 1.08 17.30.7 10.2 1.71 24.8 115 239 484 2215 208 952 1.02 16.30.8 11.6 1.81 26.3 117 243 492 2211 212 951 0.971 15.60.9 13.1 1.91 27.7 119 246 499 2206 215 948 0.923 14.81.0 14.5 2.01 29.2 120 248 506 2201 218 946 0.881 14.11.1 16.0 2.11 30.6 122 252 512 2197 220 945 0.841 13.51.2 17.4 2.21 32.1 123 253 519 2193 223 943 0.806 12.91.3 18.9 2.31 33.5 125 257 525 2189 226 941 0.773 12.41.4 20.3 2.41 35.0 126 259 531 2185 228 939 0.743 11.91.5 21.8 2.51 36.4 128 262 536 2181 230 938 0.714 11.41.6 23.2 2.61 37.9 129 264 542 2177 233 936 0.689 11.01.7 24.7 2.71 39.3 130 266 547 2174 235 935 0.665 10.71.8 26.1 2.81 40.8 131 268 552 2170 237 933 0.643 10.31.9 27.6 2.91 42.2 133 271 557 2167 240 932 0.622 9.962.0 29.0 3.01 43.7 134 273 562 2163 242 930 0.603 9.662.2 31.9 3.21 46.6 136 277 572 2157 246 927 0.568 9.102.4 34.8 3.41 49.5 138 280 581 2151 250 925 0.536 8.592.6 37.7 3.61 52.4 140 284 589 2145 253 922 0.509 8.152.8 40.6 3.81 55.3 142 288 597 2139 257 920 0.483 7.743.0 43.5 4.01 58.2 144 289 605 2133 260 917 0.461 7.383.2 46.4 4.21 61.1 146 293 613 2128 264 915 0.440 7.053.4 49.3 4.41 64.0 147 297 620 2123 267 913 0.422 6.763.6 52.2 4.61 66.9 149 298 627 2118 270 911 0.405 6.493.8 55.1 4.81 69.8 150 302 634 2113 273 908 0.389 6.234.0 58.0 5.01 72.7 152 304 641 2108 276 906 0.374 5.994.2 60.9 5.21 75.6 153 307 647 2104 278 905 0.361 5.784.4 63.8 5.41 78.5 155 309 653 2099 281 902 0.348 5.574.6 66.7 5.61 81.4 156 313 659 2095 283 901 0.336 5.384.8 69.6 5.81 84.3 158 315 665 2090 286 899 0.325 5.215.0 72.5 6.01 87.2 159 316 671 2086 289 897 0.315 5.015.5 79.8 6.51 94.4 162 324 685 2076 295 893 0.292 4.686.0 87.0 7.01 102 165 329 698 2066 300 888 0.272 4.366.5 94.3 7.51 109 168 333 710 2057 305 884 0.255 4.097.0 102 8.01 116 171 338 721 2048 310 880 0.240 3.847.5 109 8.51 123 173 343 733 2039 315 877 0.227 3.648.0 116 9.01 131 175 347 743 2031 319 873 0.215 3.448.5 123 9.51 138 178 351 753 2023 324 870 0.204 3.279.0 131 10.0 145 180 354 763 2015 328 866 0.194 3.119.5 138 10.5 152 182 360 773 2008 332 863 0.185 2.96

10.0 145 11.0 160 184 363 782 2000 336 860 0.177 2.8410.5 152 11.5 167 186 367 790 1993 340 857 0.171 2.7411.0 160 12.0 174 188 370 798 1986 344 854 0.163 2.6111.5 167 12.5 181 190 374 807 1979 347 851 0.157 2.5112.0 174 13.0 189 192 376 815 1973 350 848 0.151 2.4212.5 181 13.5 196 193 379 823 1966 354 845 0.146 2.3413.0 189 14.0 203 195 383 830 1960 357 843 0.141 2.2613.5 196 14.5 210 197 385 838 1953 360 840 0.136 2.1814.0 203 15.0 218 198 388 845 1947 363 837 0.132 2.1114.5 210 15.5 225 200 392 852 1941 366 834 0.128 2.0515.0 218 16.0 232 202 394 859 1935 369 832 0.124 1.9915.5 225 16.5 239 203 397 866 1929 372 829 0.120 1.9216.0 232 17.0 247 204 399 872 1923 375 827 0.117 1.8716.5 239 17.5 254 205 401 879 1918 378 824 0.114 1.8317.0 247 18.0 261 207 405 885 1912 381 822 0.110 1.7617.5 254 18.5 268 209 408 891 1907 383 820 0.108 1.73

D

167

Combined Imperial and S. I. Steam Tables

GaugePressure

bar g psi g

AbsolutePressure

bar a psi a

SaturationTemperature

ts

°C °F

SpecificVolume Steam

Vg

m3/kg ft3/lb

14.5 psi = 1 bar

Specific EnthalpyWater Evaporation Water Evaporation

Sensible Latent Sensible Latentheat (hf) heat (hfg) heat (hf) heat (hfg)

KJ/kg kJ/kg Btu/lb Btu/lb

18.0 261 19.0 276 210 410 897 1901 386 817 0.105 1.6818.5 268 19.5 283 211 412 903 1896 388 815 0.103 1.6519.0 276 20.0 290 213 415 909 1890 391 813 0.100 1.6019.5 283 20.5 297 214 417 915 1885 393 810 0.0972 1.5620.0 290 21.0 305 215 419 920 1880 396 808 0.0949 1.5221.0 305 22.0 319 217 423 931 1870 400 804 0.0906 1.4522.0 319 23.0 334 220 428 942 1860 405 800 0.0868 1.3923.0 334 24.0 348 222 432 952 1850 409 795 0.0832 1.3324.0 348 25.0 363 224 435 962 1841 414 792 0.0797 1.2825.0 363 26.0 377 226 439 972 1831 418 787 0.0768 1.2326.0 377 27.0 392 228 442 982 1822 422 783 0.0740 1.1927.0 392 28.0 406 230 446 991 1813 426 779 0.0714 1.1428.0 406 29.0 421 232 450 1000 1804 430 776 0.0689 1.1029.0 421 30.0 435 234 453 1009 1796 434 772 0.0666 1.0730.0 435 31.0 450 236 457 1017 1787 437 768 0.0645 1.0331.0 450 32.0 464 238 460 1026 1779 441 765 0.0625 1.0032.0 464 33.0 479 239 462 1034 1770 445 761 0.0605 0.9733.0 479 34.0 493 241 466 1042 1762 448 758 0.0587 0.9434.0 493 35.0 508 243 469 1050 1754 451 754 0.0571 0.91535.0 508 36.0 522 244 471 1058 1746 455 751 0.0554 0.88736.0 522 37.0 537 246 475 1066 1737 458 747 0.0539 0.86337.0 537 38.0 551 247 477 1073 1730 461 744 0.0524 0.83938.0 551 39.0 566 249 480 1080 1722 464 740 0.0510 0.81739.0 566 40.0 580 250 482 1087 1714 467 737 0.0498 0.79840.0 580 41.0 595 252 486 1095 1706 471 733 0.0485 0.77741.0 595 42.0 609 253 487 1102 1699 474 730 0.0473 0.75842.0 609 43.0 624 255 491 1108 1691 476 727 0.0461 0.73843.0 624 44.0 638 256 493 1115 1684 479 724 0.0451 0.72244.0 638 45.0 653 258 496 1122 1676 482 721 0.0441 0.70645.0 653 46.0 667 259 498 1129 1669 485 718 0.0431 0.69046.0 667 47.0 682 260 500 1135 1662 488 715 0.0421 0.67447.0 682 48.0 696 261 502 1142 1654 491 711 0.0412 0.66048.0 696 49.0 711 263 505 1148 1647 494 708 0.0403 0.64649.0 711 50.0 725 264 507 1155 1640 497 705 0.0395 0.63350.0 725 51.0 740 265 509 1161 1633 499 702 0.0386 0.61852.0 754 53.0 769 268 514 1173 1619 504 696 0.0371 0.59454.0 783 55.0 798 270 518 1185 1605 509 690 0.0356 0.57056.0 812 57.0 827 272 522 1197 1591 515 684 0.0343 0.54958.0 841 59.0 856 274 525 1208 1577 519 678 0.0330 0.52960.0 870 61.0 885 277 531 1219 1564 524 672 0.0319 0.51162.0 899 63.0 914 279 534 1230 1551 529 667 0.0308 0.49364.0 928 65.0 943 281 538 1241 1538 534 661 0.0297 0.47666.0 957 67.0 972 283 541 1251 1525 538 656 0.0288 0.46168.0 986 69.0 1001 285 545 1262 1512 543 650 0.0278 0.44570.0 1015 71.0 1030 287 549 1272 1499 547 644 0.0270 0.43272.0 1044 73.0 1059 289 552 1283 1486 552 639 0.0261 0.41874.0 1073 75.0 1088 291 556 1293 1473 556 633 0.0253 0.40576.0 1102 77.0 1117 292 559 1303 1460 560 628 0.0246 0.39478.0 1131 79.0 1146 294 561 1312 1447 564 622 0.0239 0.38380.0 1160 81.0 1175 296 565 1322 1435 568 617 0.0232 0.37282.0 1189 83.0 1204 298 568 1331 1422 572 611 0.0226 0.36284.0 1218 85.0 1233 299 570 1341 1410 576 606 0.0219 0.35186.0 1247 87.0 1262 301 574 1350 1398 580 601 0.0213 0.34188.0 1276 89.0 1291 302 576 1359 1385 584 595 0.0208 0.33390.0 1305 91.0 1320 304 579 1368 1368 588 590 0.0202 0.32492.0 1334 93.0 1349 305 581 1377 1360 592 585 0.0197 0.31694.0 1363 95.0 1378 307 585 1386 1348 596 580 0.0192 0.30896.0 1392 97.0 1407 309 588 1395 1336 600 574 0.0187 0.30098.0 1421 99.0 1436 310 590 1404 1323 604 569 0.0183 0.293

100.0 1450 101.0 1465 312 594 1412 1311 607 564 0.0178 0.285105.0 1523 106.0 1537 315 599 1433 1280 616 550 0.0168 0.269110.0 1595 111.0 1610 319 606 1454 1249 625 537 0.0158 0.253115.0 1668 116.0 1683 322 612 1475 1218 634 524 0.0149 0.239120.0 1741 121.0 1755 325 617 1495 1188 643 511 0.0141 0.226125.0 1813 126.0 1828 328 622 1515 1157 651 497 0.0133 0.213130.0 1886 131.0 1900 331 628 1535 1125 660 484 0.0126 0.202135.0 1958 136.0 1973 334 633 1555 1093 668 470 0.0120 0.192140.0 2031 141.0 2045 337 639 1575 1060 677 456 0.0114 0.183145.0 2103 146.0 2118 340 644 1595 1027 686 442 0.0108 0.173150.0 2176 151.0 2190 343 649 1614 994 694 427 0.0102 0.163155.0 2248 156.0 2263 345 653 1634 960 702 413 0.00972 0.156160.0 2321 161.0 2335 348 658 1654 925 711 398 0.00922 0.148165.0 2393 166.0 2408 350 662 1674 888 720 382 0.00875 0.140170.0 2466 171.0 2480 353 667 1694 850 728 365 0.00829 0.133175.0 2538 176.0 2553 355 671 1715 811 737 349 0.00785 0.126180.0 2611 181.0 2625 357 675 1736 769 746 331 0.00743 0.119185.0 2683 186.0 2698 360 680 1759 726 756 312 0.00701 0.112190.0 2756 191.0 2770 362 684 1782 679 766 292 0.00660 0.106195.0 2828 196.0 2843 364 687 1806 628 776 270 0.00619 0.0992200.0 2901 201.0 2915 366 691 1833 562 788 242 0.00577 0.0924

168

DIN Material Reference Chart

EN Material Designation Old Material Designation (DIN) ASTM

Number Symbol Number Symbol equivalent 1) Material

EN-JL 1040 EN-GJL-250 0.6025 GG-25 A126-B Grey cast iron

EN-JS 1030 EN-GJS-400-15 0.7040 GGG-40 A536 60-40-18 S. G. (ductile) iron

EN-JS 1025 EN-GJS-400-18-LT 0.7043 GGG-40.3 – S. G. (ductile) iron

EN-JS 1049 EN-GJS-400-18-U-LT 0.7043 GGG-40.3 – S. G. (ductile) iron to AD 2000 A4/W3/2 DIN EN 1563

EN-JM 1030 EN-GJMW-400-5 0.8040 GTW-40 – Whiteheart malleable cast iron

1.0038 S235JRG2 1.0038 RSt 37-2 A284-B Constructional steel

1.0315 P235G2TH 1.0315 ST 37.8 – Constructional steel

1.0460 P250GH 1.0460 C22.8 A105 Forged steel

1.0619 GP240GH 1.0619 GS-C 25 A216-WCB Cast steel

1.4008 GX7CrNiMo12-1 1.4008 G-X 8 CrNi 13 – Cast stainless steel

1.4107 GX8CrNi12 1.4107 G-X 8 CrNi 12 A217-CA15 Chromium steel

1.4301 X5CrNi18-10 1.4301 X 5 CrNi 18 10 A182-F304 Cast stainless steel

1.4308 GX5CrNi19-10 1.4308 G-X 6CrNi 18 9 A351-CF8 Cast stainless steel, austenitic

1.4317 GX4CrNi13-4 – – A743 CA6NM Cast stainless steel

– X2CrNiMo17-12-2 1.4404 X2CrNiMo17132 A182 F316L Cast stainless steel

1.4408 GX5CrNiMo19-11-2 1.4408 G-X 6CrNiMo 18 10 A351-CF8M Cast stainless steel, austenitic

1.4541 X6CrNiTi18-10 1.4541 X 6 CrNiTi 18 10 – Cast stainless steel

1.4550 X6CrNiNb18-10 1.4550 X 6 CrNiNb 18 10 A182-F347 Cast stainless steel

1.4552 GX5CrNiNb19-11 1.4552 G-X 5 CrNiNb 18 9 A351-CF8C Cast stainless steel, austenitic

1.4571 X6CrNiMoTi17-12-2 1.4571 X 6 CrNiMoTi 17 12 2 AISI 316Ti Cast stainless steel

1.4581 GX5CrNiMoNb19-11-2 1.4581 G-X 5 CrNiMoNb 18 10 – Cast stainless steel, austenitic

1.5415 16Mo3 1.5415 15 Mo 3 A182-F1 Forged steel

1.5419 G20Mo5 1.5419 GS-22 Mo 4 A217-WC1 Cast steel

1.7335 13CrMo4-5 1.7335 13 CrMo 4 4 A182-F12-2 Forged steel

1.7357 G17CrMo5-5 1.7357 GS-17 CrMo 5 5 A217-WC6 Cast steel

1.7380 10CrMo9-10 1.7380 10 CrMo 9 10 A182 F22-3 Forged steel

1.7383 10CrMo9-10 – – A182 F22-3 Forged steel

CW608N CuZn38Pb2 2.0401 CuZn 39 Pb 3 – Hot-pressed brass

CW614N CuZn39Pb3 2.0401 CuZn 39 Pb 3 – Brass

CW710R CuZn35Ni3Mn2AlPb 2.0540 CuZn 35 Ni 2 – Special brass

CC332G CuAl10Ni3Fe2-C 2.0970.01 G-CuAl 9 Ni – Bronze

CC480K-GS CuSn10-Cu 2.1050.01 G-CuSn 10 – Bronze

CC483K-GS CuSn12-C 2.1052.04 GC-CuSn 12 – Bronze

1) Physical and chemical properties comply with DIN grade. ASTM nearest equivalent grade is stated for guidance only.

D

169

Design of GESTRA ValvesGESTRA equipment with flanges or as wafer design for sandwiching between flanges DIN/EN now available in accordance with EN 1092-1

Raised Faces at a glance – Comparison Flange Standard DIN with EN 1092-1old (DIN) new (EN 1092-1) Remark

Raised Designation Admissible tolerance Raised Designation Admissible toleranceface for roughness face for roughness

C Standard up to PN 40 N11/N10 ./. Form C (old) is replaced by form B1 (new)

D N9/N8 B1 Standard up to PN 40 N10/N8 Like form D but with def. groove

E Standard from PN 63 N8/N7 B2 Standard from PN 63 N8/N6 Different tolerance for roughness

F Tongue N9/N8 C Tongue N8/N6 Tongue heights do not match!

N Groove N9/N8 D Groove N8/N6 Groove depths do not match!

V Male face N11/N10 E Male face N10/N8 Heights of male faces do not match!

R Female face N11/N10 F Female face N10/N8 Heights of female faces do not match!

V14 Male face with turned groove N11/N10 H O-ring groove N8/N6 Dimensions identical

R14 Female face to V14 N11/N10 G O-ring for male face N8/N6 Dimensions identical

L Turned groove with convex seal N6 ./.

M Bevel with welded N8/N7 ./.diaphragm seal

Roughness Characteristics

Roughness Symbol Ra Rz Rt CLA µ" Group (old)

class (old) Unit µm µm µm µin –

N1 0.025 0.22 - 0.30 0.24 - 0.40 1 ▼▼▼▼

N2 0.05 0.45 - 0.60 0.49 - 0.80 2 ▼▼▼▼

N3 0.1 0.8 - 1.1 0.85 - 1.45 4 ▼▼▼▼

N4 0.2 1.0 - 1.8 1.10 - 2.40 8 ▼▼▼

N5 0.4 1.6 - 2.8 1.75 - 3.60 16 ▼▼▼

N6 0.8 3.0 - 4.8 3.2 - 6.0 32 ▼▼▼

N7 1.6 5.9 - 8.0 6.3 - 10 63 ▼▼

N8 3.2 12.0 - 16.0 13.0 - 19.5 125 ▼▼

N9 6.3 23 - 32 25 - 38 250 ▼▼

N10 12.5 46 - 57 48 - 68 500 ▼

N11 25 90 - 110 95 - 130 1000 ▼

N12 50 160 - 220 190 - 250 2000 ▼

Since some flange faces are not interchangeable with the associated DIN versions please state the standard and the formof the face.

Example: BK 45 DN 20 PN 40 flanged to DIN 2635 form D [standard flat face, roughness Ra = 3.2 – 6.3 µm (N8/N9)] or: RK 16A DN 65 PN 40 for flange to EN 1092-1 form D (groove/groove face)

170

Technical Documentation on CDData sheets and installationinstructions in German and English.

GESTRAValve LibraryImportant technical drawings of valvesand electronic equipment for AutoCAD14 and AutoCAD 2000.

For more information see:www.gestra.de

Technical LiteratureDigital Information

D

171

Index by Product Name

Product Type Product-Range Page

Air vents BK, MK A1 6, 8

ATEX DIRECTIVE – – 161

Ball float trap UNA A1 10 – 14

Ball valve Naval, NAF A5 68 – 71

Bar chart indicator URA B 99

Blowdown receiver VDM C 145

Blowdown valve, continuous (with electric actuator) BAE B 122 – 123

Blowdown valve, continuous (without actuator) BA B 122 – 123

Blowdown valve, intermittent (with pneumatic actuator) MPA B 126 – 127

Blowdown valve, intermittent (without actuator) PA B 126 – 127

Buoyancy transmitter LD B 98 – 99

Capsule trap MK A1 8 – 9

Check valve, dual-plate BB A2 40 – 43

Combined imperial and S.I. steam tables D 166 – 167

Condensate dampening pot ED C 146

Condensate drain valve AK A1 17 – 19

Condensate recovery and return systems SDR A, SDL C 136 – 138

Conductivity controller / limiter KS 90 B 114 – 115

Conductivity control unit LRR B 113 – 119

Conductivity electrode LRG B 113 – 119

Conductivity switch LRS B 113, 118 – 119

Conductivity transmitter LRT B 113, 118 – 119

Connector for electrode LRG – B 121

Contamination detector OR B 128 – 129

Continuous blowdown valve, with electric actuator BAE B 122 – 123

Continuous blowdown valve, without actuator BA B 122 – 123

Control unit, conductivity LRR B 113 – 119

Control valve V 725, ZK A4 63 – 67

Controller, level NRR B 92 – 93, 98 – 99

Conversions D 159 – 160

Cooling water control valve, GESTRAMAT CW A4 54 – 55

Deaerator dome NDR C 143

Design of GESTRA Valves – D 169

Desuperheater, water bath KD C 141

Detector, oil ORGS B 130 – 131

Detector, oil & turbidity OR B 128 – 129

DISCO non-return valve RK A2 30 – 39

DISCO swing check valve CB A2 44 – 45

DISCOCHECK dual-plate check valve BB A2 40 – 43

Drain valve AK A1 17 – 19

Dual-plate check valve BB A2 40 – 43

Electrode, conductivity LRG B 113 – 119

Feedwater tank SW C 143

Flash vessel systems VD C 144

Float trap UNA A1 10 – 14

Flow computer Flow 20, Flow 100 B 132 – 133

Flowmeter Flow 20/100, 83 W/FA B 132 – 133

172



GESTRAMAT, Cooling water control valve CW A4 54 – 55

Gravity circulation check SBO A2 29

High-capacity steam trap TK 23/24 A1 18 – 20

High-capacity ball float traps UNA Special A1 10 – 14

High-level alarm NRS B 92 – 93, 98 – 99

High-pressure control valve ZK A4 64 – 67

Indicator, bar-chart URA B 99

Indicator, digital URB B 92 – 93

Injection cooler EK C 141

Intermittent blowdown valve, with pneumatic actuator MPA B 126 – 127

Intermittent blowdown valve, without actuator PA B 126 – 127

Kalorimat BW A4 56 – 57

Level control NRG B 96 – 97

Level controller NRR B 92 – 93, 98 – 99

Level electrode NRG B 90 – 105

Level limiter NRS B 92 – 93, 98 – 99

Level limiting electrode NRG B 90 – 105

Level monitoring, Bus Compact NRG, NRGS, NRGT B 90 – 105

Level pot for electrodes MF B 100 – 101, 121

Level switch NRS B 92 – 93, 98 – 99

Level transmitter NRT B 98 – 99

Limiter, temperature TRS 5-6/7, TRS 5-8 B 110 – 111

Low-level alarm NRS B 92 – 93, 98 – 99

Low-pressure trap MK 20 A1 18

Materials guide – D 168

Measuring pot for level electrodes MF B 100 – 101, 121

Mixing cooler VDM C 145

Monitoring equipment for steam traps VK, VKE, VKP-Ex, VKP 40 A1 24 – 25

Monitoring unit SRL B 100 – 101

NAF check valve NAF-Check A2 48 – 49

Non-return valve RK A2 30 – 39

Non-return valve, screwed MB A2 30

Oil detector ORGS B 130 – 131

Oil & turbidity detector OR B 128 – 129

PED – D 162 – 165

Pressure Equipment Directive – D 162 – 165

Pressure maintaining valve 5610 A4 59

Pressure reducing valve 5801 A4 58

Programme-controlled blowdown system TA B 124 – 125

Pump controls NRSP B 94 – 95

Resistance thermometer TRG B 110 – 111

Return temperature control valve BW A4 56 – 57

Rhombusline steam traps – A1 6 – 9, 15 – 18

Safety valve GSV A6 72

Screwed non-return valve MB A2 30

Self-acting pressure controller, pressure-maintaining valve 5610 A4 59

Self-acting pressure controller, pressure-reducing valve 5801 A4 58

Self-acting temperature controller – A4 60 – 62

D

173



Service case VRM B 120 – 121

Sightglass VK A1 24

Stainless steel steam trap – A1 8 – 11

Stainless steel, Material guide – D 168

Steam drier/purifier TD, TP C 147

Steam regenerator GRDE C 142

Steam separator TP, TD C 147

Steam tables – D 166 – 167

Steam trap for air line drainage UNA A1 22

Steam trap for large condensate flowrates GK 11/21, TK 23/24 A1 17 – 20

Steam trap for large-scale installation BK, DK A1 15 – 16

Steam trap for SIP applications SMK A1 17 – 19

Steam trap for UNIVERSAL connectors BK 35A/7, MK 35A/7, DK 36A/7 A1 21

Steam trap monitoring equipment VK, VKE, VKP-Ex, VKP 40 A1 24 – 25

Steam trap testing unit NRA A1 24 – 25

Steam trap with adjustable discharge temperature UBK A1 17 – 19

Steam trap with Duo s.s. (bimetallic) regulator BK A1 6 – 7

Steam trap with membrane regulator MK A1 8 – 9

Steam/air drier & purifier TP, TD C 147

Steam-powered condensate return units KH, FPS C 139 – 140

Steriline SMK A1 17 – 19

Stop valve GAV A8 75

Strainer GSF, SZ A7 73 – 74

Swing check valve CB A2 44 – 45

Swing check valve WB A2 46 – 47

Switch, conductivity LRS B 113, 118 – 119

Switch, level NRS B 92 – 93, 98 – 99

Switch, TDS LRS B 113, 118 – 119

Switch, temperature TRS 5-6/7 B 110 – 111

Tank-Car and Tank-Container Valves – A3 52 – 53

Tank for feedwater SW C 143

TDS transmitter LRT B 113, 118 – 119

Technical literature – D 170

Temperature control valve BW A4 56 – 57

Temperature controller, self-acting – A4 60 – 62

Temperature limiter TRS 5-6/7, TRS 5-8 B 110 – 111

Temperature sensor TRG B 110 – 111

Temperature switch TRS 5-6/7 B 110 – 111

Testing unit for steam traps NRA A1 24 – 25

Thermostatic steam trap BK, MK, SMK, TK A1 6 – 9, 17 – 20

Thermostatic/Thermodynamic steam trap BK A1 6 – 7

Training seminars – D 158

Transmitter, buoyancy LD B 98 – 99

Transmitter, conductivity LRT B 113, 118 – 119

Transmitter, level NRT B 98 – 99

Trap testing equipment VK, VKE, VKP-Ex, VKP 40 A1 24 – 25

174



Trap testing unit NRA A1 24 – 25

Traptest VKP 40 A1 25

Twin plate check valve BB A2 40 – 43

Universal controller KS 92 B 98 – 99

Useful information – D 159

Vapophone VKP 10 A1 25

Vaposcope VK A1 24

Vortex flow meter 83 W/FA B 132 – 133

Wafer-type non-return valve RK A2 30 – 39

Water-bath desuperheater KD C 141

D

175

Index by Product Code

Type Product Product-Range Page

AK Condensate drain valve A1 17 – 19

BA Continuous blowdown valve, without actuator B 122 – 123

BAE Continuous blowdown valve, with electric actuator B 122 – 123

BB Dual-plate check valve A2 40 – 43

BK Steam trap with Duo s.s. (bimetallic) regulator A1 6 – 7

BK Air vents A1 6

BW Return temperature control valve, Kalorimat A4 56 – 57

CB Swing check valve A2 44 – 45

Clorius Self-acting temperature controllers A4 60 – 62

CW Cooling water control valve, GESTRAMAT A4 54 – 55

DK Steam trap for large-scale installations A1 15

ED Condensate dampening pot C 146

EK Injection cooler C 141

Flow 20, Flow 100 Flow computer, flowmeter B 132 – 133

FPS Steam-powered condensate return units C 140

GAV Stop valve A8 75

GK 11/21 Steam trap for large condensate flowrates A1 17 – 20

GRDE Steam regenerator C 142

GSF Strainer A7 73

GSV Safety valve A6 72

KD Desuperheater, water bath C 141

KH Steam-powered condensate return units C 139

KS 90 Conductivity controller / limiter B 114 – 115

KS 92 Universal controller B 98 – 99

LD Buoyancy transmitter B 98 – 99

LRG Conductivity electrode B 113 – 119

LRR Conductivity control unit B 113 – 119

LRS Conductivity switch B 113, 118 – 119

LRT Conductivity transmitter B 113, 118 – 119

MB Screwed non-return valve A2 30

MF Level pot for electrodes B 100 – 101, 121

MK 20 Low-pressure trap A1 18

MK Air vents A1 8

MK Steam trap with membrane regulator A1 8 – 9

MPA Intermittent blowdown valve, with pneumatic actuator B 126 – 127

NAF Ball valve A5 68, 70 – 71

NAF-Check Check valve A2 48 – 49

Naval Ball valve A5 69

NDR Deaerator dome C 143

NRA Trap testing unit A1 24 – 25

NRG Level control B 96 – 97

NRG, NRGS, NRGT Level monitoring, Bus Compact B 90 – 105

NRR Level controller B 92 – 93, 98 – 99

NRS Level switch B 92 – 93, 98 – 99

NRSP Pump control B 94 – 95

NRT Level transmitter B 98 – 99

OR Oil & turbidity detector B 128 – 129

ORGS Oil detector B 130 – 131

176

Index by Product Code

Type Product Product-Range Page

PA Intermittent blowdown valve, without actuator B 126 – 127

RK Non-return valve A2 30 – 39

SBO Gravity circulation check A2 29

SDL Condensate recovery and return systems, vertical C 137 – 138

SDS Condensate recovery and return systems, horizontal C 137 – 138

SDR A Condensate recovery and return systems C 136

SMK Steam trap for SIP applications, Steriline A1 17 – 19

SRL Monitoring unit B 100 – 101

SW Feedwater tank C 143

Swivel Steam trap for UNIVERSAL connectors A1 21

SZ Strainer A7 74

TA Programme-controlled blowdown system B 124 – 125

TD Steam separator, steam drier/purifier C 147

TK 23/24 High-capacity steam trap A1 18 – 20

TP Steam driers/purifiers C 147

TRG Temperature sensor, resistance thermometer B 110 – 111

TRS 5-6/7 Temperature switch, temperature limiter B 110 – 111

TRS 5-8 Temperature monitor B 110 – 111

UBK Steam trap with adjustable discharge temperature A1 17 – 19

UNA Ball float trap A1 10 – 14

UNA Steam trap for air line drainage A1 22

URA Bar chart indicator B 99

URB Indicator, digital B 92 – 93

URN Inverter, power supply unit B 112

V 21.9 Steam manifold A1 26

V 21.9/K Condensate collector A1 26

V 725 Control valve A4 63

VD Flash vessel systems C 144

VDM Mixing cooler, blowdown receiver C 145

VK Vaposcope, sightglass A1 24

VKE Test set, steam trap monitoring A1 24 – 25

VKP 10 Steam trap monitoring system A1 25

VKP 40 Traptest, steam trap monitoring A1 25

VKP 40 Ex Traptest, steam trap monitoring A1 25

VRM Service case B 120 – 121

WB Swing check valve A2 46 – 47

ZK High-pressure control valve, control valve A4 64 – 67

5610 Pressure-maintaining valve A4 59

5801 Pressure-reducing valve A4 58

83 W/FA Vortex flowmeter B 132 – 133

GESTRA AGMünchener Str. 77, D-28215 Bremen

P.O. Box 10 54 60, D-28054 Bremen

Telephone +49 (0) 421-35 03-0

Telefax +49 (0) 421-35 03-393

E-mail [email protected]

Internet www.gestra.de

With Energy into the Future810564-05/706 EMA · © 2006 · GESTRA AG · Bremen · Printed in Germany

Note: Responable care has been taken in preparing this illustrated catalogue. GESTRA reserves the right to make corrections and changes. Illustrations in our printed literature are liable to alteration and are not intended to be binding. We also reserve the unrestricted property and copyright in all estimates, drawings or related documents, which must not be made available to third parties.

Revised 2006

06-b-technik 75-132 en · bk 212 f91 – 250 1.4903/f91 – 932.9 bar / 500°c 348.4 bar / 600°c...

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