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V-FLO Rm B-301 Ziyunxuang BuildingNo.81 Zizhuyuan Rd. Haidian Dist. Beijing China+8610 88580010/20/ 30+8610 88580150

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API PLUG VALVEInverted Pressure Balance Lubricated

Application:

--Inverted pressure balance lubricated plug valve acc. To ANSI is applicable to thecutting and connection of pipelines medium that are used in various industries such aspetroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etcunder nominal pressure of Class 150-1500 Lbs and working temperature of 29~180C.

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API Plug Va lve Product introduction:

Inverted pressure balance lubricated plug valve acc. To ANSI is applicable

to the cutting and connection of pipelines medium that are used in various

industries such as petroleum, chemical industry, pharmacy, chemical

fertilizer, electric power industry etc under nominal pressure of Class 150-

1500 Lbs and working temperature of 29~180C.

Main structural feature:1. It has logical structure, reliable seal, excellent performance and nice design.

2. It has the structure of flip-chip balanceable pressure and light on/off operation.

3. An oil groove is set between valve body and seal surface, which may infuse the seal grease to increase the

seal capability.

4. The party material and flange dimension may be selected according to current operating condition and

users requirement, so that meet the requirements of various engineering.

Technical specification:Structural formation BC

Driving mannerHand -operated

Electric-actuated

Design standard API 599, API 6D

Face to face ASME B16.10

Flange ends ASME B 16.5

Test &inspection API 598. API 6D

Products performance specification:Nominal pressure (LB) Shell test (Mpa) Sealing test (Mpa) Suitable temp. Suitable mediums

150 3.0 2.2

180 Water oil &gas300 7.5 5.5

600 15.0 11.0

900 22.5 16.5

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API Plug Valve Inverted type plug valve construction:

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API Plug Valve

Production enforce standard:Design specification Face to Face Flanged End Pressure-Temp Test & Check

API 599 ANSI B16.10 JB/T74~90 JB/T74 API 598

API 6D GB/T15188.1 GB/T9112~9124 GB/T9124 JB/T9092

Q/ZCD01-2000 Q/ZCD01-2000 HG20592~20635 HG20604~20625

ANSI B16.5 ANSI B16.34SH3406 SH 3406

Material for main parts:SN Part Name Material

1 Bolt ASTM A193-B7 A193-B8 A193-B8M

2 Nut ASTM A194-2H A194-8 A194-8M

3 Cover ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M

4 Gasket Flexible graphite + stainless steel, PTFE

5 Plug ASTM A182-Gr.F6a ASTM A182-F22 ASTM A105/A216WCBASTM A182-F316, F321, F304L, F316L

6 Body ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M

7 Stem 2Cr13 ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304

ASTM A182-F316, F321, F304L, F316L

8 "O" Ring NBR

9 Packing Flexible graphite , PTFE

10 Gland ASTM A216-WCB ASTM A351-CF8,CF8M,CF3,CF3M

11 Oil Nozzle

12 Check valve

13 Wrench ASTM A47- 32510, A216WCB

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API Plug Valve Design features:Patterns:

A. Blowout proof stem

B. Weather seal

C. Graphite packing rings give normal sealing and

D. fire sealing

E. Stem packing compound injector to renew sealing

to atmosphere

F. Thrust washer

The plug valves are available in regular, short or venture pattern. These setms are defined in BS 5353, API 6D

and API 599. the different patterns vary as regards end-to-end dimension and port area for a given size of valve.

Regular pattern valves have the largest port area. Short pattern valves have a reduced port area as a

consequence of their compact face to face dimensions which are identical to those for wedge gate valves.

Venturi pattern valves have a reduced port area and a flow path approximating a venture shape to aid pressure

recovery. Face to face and end to end dimensions conform to ANSI B 16.10 and BS 2080.

Plain stem design:

G. Pressure balance holes

H. Plug with metal to metal seating

J. Plug loading screw

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API Plug Valve Plug balancing:

All valves are protected against the possibility of seizure due to taper

locking. Taper locking is caused by an imbalance of forces acting on the

plug due to line pressure finding its way into the lower part of the plug

chamber. As shown by the arrows in Fig.1, the resultant force tends to

push the plug upwards, jamming it in its tapered bore, the plug can

remain locked even when line pressure is subsequently reduced.

In an attempt to combat taper locking, conventional valves utilize the

pressure of the plug sealant, acting on the upper face of the plug, to

react against the upwards force. This reduces, but does not eliminate,

the possibility of taper locking and requires regular sealant injection to

maintain valve freedom.

Pressure Balancing:Standard Super-H valves incorporate pressure balanced plugs, as shown in Fig. 2. The drilling and check valve in

the top section of the plug allow the line pressure itself to counteract the upwards force, preventing any possibility of

taper lockingwithout the need for frequent sealant injection.

Protected Pressure Balancing

For increased reliability in service where there is a possibility of foreignparticles in the media we can incorporate, as an option, protected pressure

balanced plugs (Fig. 3). This design ensures that the balancing holes are

not exposed to the line media in the plug port, providing added security

compared with normal pressure balancing.

Plug Balancing Spring

This design (Fig. 4) preloads the plug to prevent taper locking during

pressure and/or temperature transients. Available as an option, this also

enables total flexibility in piping configuration.

irrespective of valve orientation.

Fire tested:The features which improve the behavior of the valve when subjected

to a fire - not only a standard defined fire but also the varying

temperatures and durations likely in a real plant fire. The sealing is

metal-to-metal, the diaphragm seating is metal-to metal or graphite

and the stem has a graphite seal. Additionally,

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API Plug Valve

Class 150 Dimension:Size

mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14

L-RF (mm) 108 117 127 140 165 178 190 203 229 254 267 292 330 356 381

L-BW (mm) 152 178 203 216 229 267 305 330 356 381 394 457 533 610 686

H (mm) 180 180 185 200 210 215 250 270 300 340 365 400 450 510 590

W (mm) 400 400 500 500 600 600 820 820 300 300 320 320 350 380 380

Weight (Kg) 10 12 14 17 19 21 29 33 48 75 98 125 171 230 370


mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14

L-RF (mm) 140 152 165 178 190 216 241 283 305 381 403 419 457 502 762

L-BW (mm) 152 178 203 216 229 267 305 330 356 381 457 521 559 635 762

H (mm) 180 180 185 200 210 215 250 270 300 340 365 400 450 510 590

W (mm) 400 400 500 600 600 820 1000 1000 300 300 320 320 350 380 380

Weight (Kg) 12 14 16 19 21 24 31 36 61 86 130 190 255 380 560

Main external and connection dimension:

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Main external and connection dimension:

Sizemm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14

L-RF.BW (mm) 165 190 216 229 241 292 330 356 432 508 559 660 787 838 889

H (mm) 180 180 185 200 210 215 250 270 300 340 365 400 450 510 590

W (mm) 400 400 500 500 600 600 820 820 300 300 320 320 350 380 380

Weight (Kg) 14 16 18 20 24 29 35 47 91 129 210 320 660 920 1250

Class 600 Dimension:


mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14

L-RF.BW (mm) 229 229 254 279 305 368 419 381 457 559 610 737 838 965 1029

H (mm) 180 180 185 200 210 215 250 270 300 340 365 400 450 510 590

W (mm) 400 400 500 600 600 820 1000 1000 300 300 320 320 350 380 380

Weight (Kg) 17 29 21 24 30 37 44 65 110 160 255 380 810 1050 1460

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API Plug Va lve How to specify Plug Valve Figures Numbers:

Body Material

Pressure

Sealing surface material

Construction feature

Construction type

Connection type

Actuated type

Valve type

Special require code

Body Material: C-carbon steel P-alloy Z-gray cast iron

Pressure: 150-class150 300 class 300 600 - class 600

Sealing surface material:F-PTFE Y-harden alloy H-alloy steel

Construction type:7 lubricated straight 8 lubricated T

Connection type:1 Inside screw 2 Outside screw 4-Flange 6-Welding 7 Wafer 8 - Union ring

9 - Compression joint

Actuated type:0 - Electro magnetic 1- Electrical hydraulic 2 - Electrical hydraulic 3 gear

4 Spur gear 5 Angle gear

6 Pneumatic 7 Hydraulic 8 Pneumatic-hydraulic 9 Electrical

Valve typeX-Plug valve Q-Ball valve Z Gate valve J Globe valve L - Throttle valve

D Butterfly valve

Special require code:K-Resisted sulphur

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