dry disconnect couplings · 4 › disc valves › coupling connection using bayonet principle ›...

Dry Disconnect CouplingsProduct Range

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Dry Disconnect Couplings are safety components. They facilitate fast coupling and decoupling of fi lled hose and pipe lines

under pressure without signifi cant leaks or loss of the handled fl uid. They are used everywhere where people and/or the

environment need to be protected from hazardous leaks of media (caustic, toxic, explosive, etc.), or vice-versa when sensitive

media (e.g. foodstuffs as well as pharmaceutical and fi ne chemical products) need to be kept safe from environmental

contamination.

Depending on the fi eld of application, different technical

designs are needed, all of which however work on the fol-

lowing basic principle:

Both coupling halves in the separated (decoupled) state

are blocked by a sealing mechanism so that no media can

escape. When coupling, both halves are initially connected

with each other tightly sealed before the sealing mecha-

nism can be opened and a fl ow channel inside the cou-

pling is enabled. Vice-versa, before separation, both cou-

pling halves are fi rst closed again so that the fl ow channel

is blocked.

For this purpose, dry disconnect couplings are equip-ped with the following basic functions:

› Safe connection of the coupling halves. Hose and tank

units are impermeably connected to one another.

› Sealing mechanism for both coupling halves to prevent

the media from leaking.

› Safety in design. The mandatory operating sequence of

points 1 and 2 prevents undesirable product leakages.

› Integrated swivel joint in order to prevent hose torsion.

› Depending on the application, there are different

coupling types, which differ primarily in terms of their

valve form, e.g. disc valve, sleeve valve and ball valve.

Only a specialist is qualifi ed to clearly specify the choice

of a suitable dry disconnect coupling. Each application al-

ways requires individual requests and advice. That is why

we have restricted this catalogue to the technologies typi-

cally used in the broad market. A distinction is made here

between the valve-controlled sealing systems and the „full

fl ow“ constructions.

Your advantages› Quick coupling without signifi cant media loss

› Matching coupling technologies for various re-

quirements

› Protects humans and the environment from leak-

ing hazardous substances

› Customer-specifi c special solutions from DN 25 to

DN 150

Basic information

www.rs-seliger.de 3

Dry Disconnect Couplings at a glance 4

TX series 6

NEW generation that is also STANAG-compatible 6Technical data 7Application examples 9

TR series 10

The coupling for chemicals and special applications 10Technical data 11Application examples 13

TD series 14

The special solution for steam applications 14Technical data 15Application examples 16

TK series 17

Full fl ow coupling with ball valve 17Technical data 18Application examples 19

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› Disc valves › Coupling connection using bayonet principle › Standardised interface: STANAG 3756 › Without signifi cant residue

› Disc valves › Coupling connection by means of control cam › Exceptional coupling

ergonomics › Without signifi cant residue

Dry Disconnect Couplings at a glance glanceTX series

Dry Disconnect Couplings at a glance

TR series

Nominal diameters › DN 25 to DN 100

› Others upon request

Materials › Stainless steel (1.4571 / 1.4408)

› Aluminium (ENAW 5083 / ENAC 42000)


Connections › Thread: BSP, NPT

› Flange: EN 1092-1, ASME B16.5


Seals › O-ring: FKM, EPDM, FFKM, NBR

› Thread seal: PUR, PTFE


Operating pressure › PN 16 – aluminium

› PN 25 – stainless steel

Nominal diameters › DN 25 to DN 150


Materials › Stainless steel (1.4571/1.4408)

› Hastelloy® (C4/2.4610 / B3/2.4600)

› Aluminium






› Thread seal: PTFE


Operating pressure › PN 16 - aluminium

› PN 25 - stainless steel

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› Disc valves › Coupling connection by means of control cam › High safety for steam

applications › No escape of steam during coupling under steam

› Full Flow using two-sided ball valve technology › Coupling connection using cleats similar to the

Storz principle › Free fl ow cross-section › Low residue with full hose system

Dry Disconnect Couplings at a glance

TD series TK series

Nominal diameters › DN 25




Connections › Thread: BSP


Seals › O-ring: EPDM, FFKM

› Thread seal: Novapress® Multi

Operating pressure › PN 16 for applications up to 180 °C

› PN 25 for applications up to 225 °C

Nominal diameters › TKU: DN 38, DN 50, DN 80

› TKM: DN 25, DN 38




Connections › Modular connection concept

› Thread: BSP, NPT


› Clamp


Seals › Thread seal: PTFE

› Seals TKU: FKM

› Seals TKM: FFKM, FKM, NBR, EPDM


Operating pressure › PN 25

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TX seriesNEW generation that is also STANAG-compatible

Operating principleThe TX series corresponds to the most modern require-

ments and is based on the proven bayonet principle accor-

ding to NATO STANAG 3756.

The coupling consists of two different halves, tank and

hose unit, each fi tted with a disk valve. When connecting,

the hose unit is positioned axially onto the tank unit and

sealed.

A further turn through about 100° opens the valves by

displacement into the tank unit, leaving a ring-shaped fl ow

channel open. To disconnect the coupling is turned in the

opposite direction.

The valves in both halves of the coupling are closed. Only

then can the two halves of the coupling be separated.

State: uncoupled State: coupled

TX series NEW generation that is also STANAG-compatible

www.rs-seliger.de 7

Technical data

Available sizes › 1“ DN 25 / 2“ DN 50 / 2½“ DN 65 /

3“ DN 80 / 4“ DN 100




Seals › FKM (Viton*), NBR (Nitrile), EPDM,

FFKM (Chemraz**/ Kalrez*)

* Viton and Kalrez are registered brand names of Dupont Performance Elastomers.** Chemraz is a registered brand name of Green-Tweed.

Interlock – optional interlock function using ergonomicpaddle actuation guarantees easy handling

The special characteristics › Time and cost saving engineering

fl ow optimized design ensures highest fl ow rates and

lowest pressure drops

› Quickest maintenancemodular design allows maintenance even infi eld within

minutes and saves time and money

› O-ring count decreasereducing the amount of elastomeric seals by 50%

minimizes maintenancecosts

› Plant integrationno protruding parts during coupling avoid adaptors

› Highest connection pressureadvanced sealing design allows connection & dis-

connection at higher line pressures

› Easy Connectionconnecting and disconnecting is made comfortable

through superior dynamics concept

› High performance integrated swivellow maintenance double ball race design, pressure

neutral, with low friction & highest resistance against

shear forces

› Hands on interlock device(optional) integrated locking mechanism ensures user

friendly actuation

› Stability in rough environmentssuperior construction guarantees stability even with

high fl ow rates, pressure peaks and vibrations

Materials / Operating pressure

Material1 Operating pressure

Aluminium - cast 16 bar / 232 psi

Aluminium - machined from bar 25 bar / 363 psi

Stainless steel - cast 25 bar / 363 psi

Stainless steel - machined from bar 25 bar / 363 psi 1 Additional materials available upon request

TX series Technical data

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

0,0 0,2 0,4 0,6 0,8 1,0 1,2

Flow

rate

[l/m

in]

Pressure drop [bar]

Test Fluid: n-Paraffin 20°C Density: 0,75kg/m³ Viskosity: 1,75mm²/s

TX DN 100 / 4"

TX DN 80 / 3"

TX DN 65 / 2,5"

TX DN 50 / 2"

TX DN 25 / 1"

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Flow rate comparison with a compatible brandFlow rates for different coupling sizes

TX DN 100/4“ TX DN 80/3“ TX DN 65/2,5“ TX DN 50/2“ TX DN 25/1“

Pressure drop [bar]

Flow

rate

[l/m

in]

Test Fluid: n-Paraffi n 20°C Density: 0,75kg/m³ Viskosity: 1,75mm²/s

TX 3“ 3“ Benchmark (compatible brand)

(measured by an independent laboratory using water at 20° C and 1bar pressure loss)

Flow

rate

[l/m

in]

AccessoriesDust caps and plugs available in:

› NBR

› PE

› Aluminium

› Stainless steel

› Parking adapter

Options › Interlock

› Colour-coded handles

› Mechanical coding

› Sensoric concepts

› Handles sizes

Dust caps and plugs

TX series Technical data

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Application examplesfor loading solutions in the chemical industry

Operating principleThe dry disconnect coupling TX complies with the current

safety standards. Its innovative internal contour reduces

the flow resistance of the locking elements. Compared to

competitor products this reduces the necessary energy de-

mand with identical loading performance .

In addition, the superior ergonomics of the coupling ma-

kes handling easy and safe - even at high operating pressu-

re. Due to its modular design the dry disconnect coupling

TX requires little maintenance and is easy to repair since

the entire sealing unit can be removed and replaced within

just a few minutes.

Link to the video Link to the reference

TX seriesApplication examples


10 www.rs-seliger.de

TR seriesThe coupling for chemicals and special applications

Operating principleThe proven couplings of the TR series are utilized especially

in processes with dangerous media and special require-

ments. No matter if used with liquids, gases, slightly pasty

or higher viscous media - the TR holds everything.

Fast and intuitive coupling makes the handling easy. An

optimized fl ow contour provides higher fl ow rates than

comparable products . An almost residue-free coupling,

even in extreme conditions, protects operators, medium,

plant and environment.

To couple the hose unit is placed on the tank unit. With a

single twist, both parts can be connected and opened by

pulling the tank unit over cams in the hose unit. After a

turn by 10 ° both halves fi rmly connected.

Only then do the two shut-off valves shift into the tank

unit to give at the end of a total rotation by 120 ° the fl ow

channel completely free.

When uncoupling the process runs in reverse order. First

the fl ow channel becomes sealed media-tight. Only then

can the coupling halves be separated. Hence, an unwan-

ted media leakage is safely avoided.

TR seriesThe coupling for chemicals and special applications

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Technical data

Nominal widths › Nominal widths

› DN 25 to DN 150


Materials › Stainless steel (1.4571/1.4408)

› Hastelloy® (C4/2.4610 / B3/2.4600)

› Aluminium






› Thread seal: PTFE


The special characteristics › For chemicals and special applications

unique coupling design allows easy cleaning and

reduces downtimes

› Recommended for degreasing medialumicrations relevant for the fu nction of the coupling

do not come in contact with the medium

› Virtually residue-free couplingapproved in service for many year

› Excellent coupling ergonomicsquick and easy coupling by one single turn only

› Time and cost saving engineeringfl ow optimized design ensures high fl ow rates and low

pressure drops“

Optional color coding - prevention of accidental mix-ups

TR seriesTechnical data


Flow rates

Accessories › Dust caps made of PP

› Dust plugs made of PP

Options › Mechanical coding

› Colour coding

› Stainless steal handwheel

› Extended body to fi t on IBCs

› Sensoric concepts

Dust cap and dust plugs

DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100

(Medium: Water, 20°C/68°F) (Medium: Water, 20°C/68°F)

0.0 0.00.2 0.20.4 0.40.6 0.60.8 0.81.0 1.01.2 1.21.4 1.41.6

1.6

Flow

rate

[l/m

in]

Flow

rate

[l/m

in]

Pressure drop [bar] Pressure drop [bar]4500

4000

3500

3000

2500

2000

1500

1000

500

0

1400

1200

100

800

600

400

200

0

TR seriesTechnical data


Application examplesfor safe transportation of critical media

The TR in use in an explosion protection zone at a chemical

plant. Undesirable and hazardous media leakage is thus

avoided.

In use as a secure quick coupling in a multi-purpose facility

at a chemical plant. For process optimisation, flange sys-

tems were replaced by the TR series. The colour coding as

well as the mechanical coding used on one variant (green)

avoid connection mix-ups and therefore the unintentional

mixing of amines and non-amines.

In use in a distributor station for a filling line at a chemical

plant. Six hose lines each fitted with a hose unit can be

connected quickly and without media leakages to a selec-

tion of 10 pipe lines, each of which is equipped with a

tank unit.

In use for loading rail tank wagons with ethanol at a che-

mical plant. Simple, quick and leak-free coupling and de-

coupling of the discharge line is guaranteed. For added

safety, the TR dry disconnect coupling in this application

is supplemented by an RS breakaway coupling from the

ABVL series.

TR seriesApplication examples



TD seriesThe special solution for steam applications

Functional principleTD dry disconnect couplings consist of two coupling halves

(tanks and hose unit), each fi tted with a cut-off valve.

Coupling is preformed via a rotary movement that pulls

the male coupling into the female coupling by means of

the helical grooves. After 10°, the hose unit and the tank

unit are connected. At up to 120°, the valve position shifts

relative to the valve seat – the full, unobstructed fl ow of

the medium is guaranteed.

When the coupling is opened (unscrewing the cam disc

mechanism), the shut-off valves in the coupling halves clo-

se before the halves themselves are separated, which pre-

vents the uncontrolled escape of hot steam.

TD seriesThe special solution for steam applications


Technical data

Nominal widths › 1“ DN 25


Materials › Metal components: Stainless steel 1.4571


Connections › BSP female thread 1”


Seals › O-ring: EPDM for steam application

› Thread seal: Novapress® Multi

› FFKM


Operating pressure › PN 16 for applications up to 180 °C

› PN 25 for applications up to 225 °C

The special characteristics › Insulated plastic handle sleeve on the hose unit

› Improved coupling ergonomics

› Enhanced end position locking during coupling

› Undesired decoupling due to hose movement (swivel

joint actuation) no longer possible

› Faster and safe decoupling due to improved coupling

kinematics

Variant 1 (PN16) › Approved for use up to PN16 and 180°C

› EPDM seal

› Variant 2 (PN25)Incompatibility with variant 1 prevents connection

mix-ups

› Approved for use up to PN25 and 225°C

› FFKM seal

Flow rates

Dust cap and dust plugs

DN 25

(Medium: Water, 20°C

Flow

rate

Pressure loss (pressure drop) [bar]750

l/min650600550500450400350300250200150100

500

lm3/h39

33

27

21

15

9

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Accessories › Dust caps made of PP

› Dust plugs made of PP

TD seriesTechnical data


Application examplesfor steam applications of up to 225°C

In use as a flexible steam connection for heating a doub-

le hose line in a chemical plant for manufacturing special

silicones.

TD seriesApplication examples



Functional principle of Premium modelThe TKMM/TKMV premium model basically works accor-

ding to the same principle, and consists of two non-iden-

tical coupling halves.

The coupling offers all the advantages of the standard che-

mical variant (TKU). It is also optimized for use with viscous

and quick-hardening media.

› Flow cross-section optimised in terms of dead spots

› Suitable for quick-hardening, crystallising and low-vis-

cosity media

› Media with very high resistance requirements

› Coupling consists of a female and male parts

(with regard to the separation point)

TK seriesFull fl ow coupling with ball valve

Functional principle of basic modelThe TK series dry disconnect couplings consist of two iden-

tical (TKU) or two virtually identical tank and hose units

(TKMV and TKMM), which in the decoupled state are each

closed by a cut-off valve based on the ball valve principle.

The connection between the two coupling halves is reali-

sed by cleats. The connection is secured by turning the two

coupling halves 90° relative to each other. After coupling,

the two ball valves are opened by a lever on each side and

the full fl ow cross-section is released.

An integrated interlock function prevents

› accidental decoupling while the fl ow cross-section is open

› inadvertent opening of the fl ow cross-section while in the

decoupled state and the resultant undesirable media loss

TK seriesFull fl ow coupling with ball valve


Technical data

Nominal diameters › TKU: DN 38, DN 50, DN 80

› TKM: DN 25, DN 38




Connections › Modular connection concept

› Thread: BSP, NPT


› clamp


Seals › Thread seal: PTFE

› Seals TKU: FKM

› Seals TKM: FFKM, FKM, NBR, EPDM


Operating pressure › PN 25

The special characteristics › Full flow cross-section

– Ideal for viscous media

– Practically no pressure loss / maximum flow

– Not sensitive towards large foreign bodies

› Ball valve principle

permits coupling against higher pressures

› Suitable

for vacuum applications

› Variable line connections

based on a modular concept

(from weld end to various threads all the way to flanges)

› Mechanical coding

using cleats possible

› Colour coding using different handle colours

Options › Mechanical coding

› Color coding

TK with cap

TK seriesTechnical data


TK seriesApplication example

Application examplesfor all loading and refuelling processes with free flow cross-section

In use for instantaneous connection of a gas displacement

line for loading tanker trucks in a chemical plant for the

production of colour pigments

In the unloading station (delivery) of a filling plant operated

by logistics provider for hazardous chemical substances.

The dry disconnect coupling function reduces the respec-

tive set-up times, guarantees rapid coupling and decou-

pling, and eliminates the need for various time-consuming

additional measures to protect humans and the environ-

ment. Furthermore, the full flow rates provided ensure that

short loading times are maintained.

In use for disposing of combustible sludge on a feeder ship.

Compared to the previously used flange solutions, the ef-

fort involved in connecting the disposal line is significantly

reduced while the level of cleanness is drastically increased.

RS Roman SeligerArmaturenfabrik GmbH

An’n Slagboom 2022848 Norderstedt

Fon: +49 40 523064 0Fax: +49 40 523064 25

[email protected]

dry disconnect couplings · 4 › disc valves › coupling connection using bayonet principle ›...

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