WCB/Stainless Steel GB Dual-plate Double-flange Check Valve——ZG VALVE
WCB/Stainless Steel GB Dual-plate Double-flange Check Valve——ZG VALVE
  • WCB/Stainless Steel GB Dual-plate Double-flange Check Valve——ZG VALVE
  • WCB/Stainless Steel GB Dual-plate Double-flange Check Valve——ZG VALVE

WCB/Stainless Steel GB Dual-plate Double-flange Check Valve

ZG VALVE WCB/Stainless Steel GB Dual-plate Double-flange Check Valve, CE pressure equipment Certification, multiple pressure tests,two-year warranty, a variety of materials are available.

Size Range: 8"~144"  DN200-DN3200      

Working Pressure: PN10~PN100

Body Materials: WCB, A105, WC6, F11, WC9, F22, LCB, LF2, CF8, F304, CF3, F304L, CF8M, F316, CF3M, F316L, ZG1Cr18Ni9Ti, 1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, 1Cr18Ni12Mo2Ti, Copper and copper alloys, Ti and Ti alloys

Trim: 304, 304L, 316, 316L, SS321, Alloy 20, Copper and copper alloys, Ti and Ti alloys

Spring: 304, 304L, 316, 316L, Monel, Inconel600, Incomel X-750

Seal: 13Cr/13Cr, body material, Stainless Steel, Monel alloy, Cemented carbide, Alloy 20(N08020), Copper and copper alloys, Ti and Ti alloys, NBR, PTFE, VITON, EPDM, Silicone rubber

Application for: By selecting different materials, it can be applied to a variety of media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media, and urea.

Shell Test: 1.5 times

Seat Test: 1.1 times

Payment: T/T, D/P or L/C

Lead Time: 5-30 day

Description

Design Features:

Check Valves are the valves of stopping the fluid from backflow. The disc can be opened by the pressure of fluid. And then the fluid runs from the inlet to the outlet side. When the pressure of inlet is less than outlet, the disc can be cloased automatically and stop the fluid from backflow.

The swing check valve adopts a built-in rocker swing structure. All the opening and closing parts of the valve are installed inside the valve body and do not penetrate the valve body. Except for the sealing gasket and sealing ring at the middle flange, the whole There is no leakage point, preventing the possibility of valve leakage. The swing arm of the swing check valve adopts a spherical connection structure at the connection between the rocker arm and the valve flap, so that the valve flap has a certain degree of freedom within the range of 360 degrees, and there is an appropriate micro position compensation.

It is suitable for clean media, not for media containing solid particles and high viscosity.


Wafer Swing Check Valve Features: 

1. The structure length is short, and its structure length is only 1/4~1/8 of the traditional flange check valve;

2. Small size and light weight, its weight is only 1/4~1/20 of the traditional flange check valve;

3. The valve flap closes quickly and the water hammer pressure is small;

4. Both horizontal pipes and vertical pipes can be used, and the installation is convenient;

5. The flow channel is unobstructed and the fluid resistance is small;

6. Sensitive action and good sealing performance;

7. The valve disc has short stroke and small closing impact;

8. The overall structure, simple and compact, beautiful appearance;

9. Long service life and high reliability.


Field of Application:

Size Range: 8"~144"    DN200-DN3200      

Working Pressure: PN10~PN100

Working Temperature: -196~540°C

Application for: By selecting different materials, it can be applied to a variety of media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media, and urea.


Technical Specification:

Design standard: JB/T8937

Face to Face dimension: JB/T8937

Connection flange: JB/T74-90, GB/T13402, GB/T9112-9124, HG/T20592~20635  

Pressure temperature rating: JB/T74, GB/T9124, HG20604~20625

Test standard: JB/T9092



法兰双瓣止回阀T ss.jpg

MATERIAL LIST


Material     Specification
Part   NameMaterial
BodyWCB,   A105, WC6, F11, WC9, F22, LCB, LF2, CF8, F304, CF3, F304L, CF8M, F316, CF3M,   F316L, ZG1Cr18Ni9Ti, 1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, 1Cr18Ni12Mo2Ti, Copper and   copper alloys, Ti and Ti alloys
Trim304,   304L, 316, 316L, SS321, Alloy 20, Copper and copper alloys, Ti and Ti alloys
Spring304,   304L, 316, 316L, Monel, Inconel600, incomel X-750
Seal13Cr/13Cr,   body material, Stainless Steel, Monel alloy, Cemented carbide, Alloy   20(N08020), Copper and copper alloys, Ti and Ti alloys, NBR, PTFE, VITON,   EPDM, Silicone rubber


法兰双瓣止回阀T ss.jpg

Dimensions (mm)

DN Inch Pressure L D D1 n-d
200 8" PN10 127 340 295 12-M20
200 8" PN16 127 340 295 12-M20
200 8" PN25 127 360 310 12-M24
200 8" PN40 127 375 320 12-M27
250 10" PN10 146 395 350 12-M24
250 10" PN16 146 405 355 12-M24
250 10" PN25 146 425 370 12-M27
250 10" PN40 146 450 385 12-M30
300 12" PN10 181 445 400 12-M20
300 12" PN16 181 460 410 12-M24
300 12" PN25 181 485 430 16-M27
300 12" PN40 181 515 450 16-M30
350 14" PN10 184 505 460 16-M20
350 14" PN16 184 520 470 16-M24
350 14" PN25 184 555 490 16-M30
350 14" PN40 222 580 510 20-M33X3
400 16" PN10 191 565 515 16-M24
400 16" PN16 191 580 525 16-M27
400 16" PN25 191 620 550 16-M33
400 16" PN40 232 660 585 16-M36X3
450 18" PN10 203 615 565 20-M24
450 18" PN16 203 640 585 20-M27
450 18" PN25 203 670 600 20-M33
450 18" PN40 264 685 610 20-M36X3
500 20" PN10 219 670 635 20-M24
500 20" PN16 219 715 650 20-M30
500 20" PN25 219 730 660 20-M33
500 20" PN40 292 755 670 20-M39X3
600 24" PN10 222 780 725 20-M27
600 24" PN16 222 840 770 20-M33
600 24" PN25 222 845 770 20-M36X3
600 24" PN40 318 890 795 20-M45X3
700 28" PN10 305 895 840 24-M27
700 28" PN16 305 910 840 24-M33
700 28" PN25 305 960 990 24-M39×3
800 32" PN10 305 1015 950 24-M30
800 32" PN16 305 1025 950 24-M36X3
800 32" PN25 305 1085 990 24-M45X3
900 36" PN10 368 1115 1050 28-M30
900 36" PN16 368 1125 1150 28-M36×3
900 36" PN25 368 1185 1090 28-M45×3
1000 40" PN10 432 1230 1160 28-M33
1000 40" PN16 432 1255 1170 28-M39×3
1000 40" PN25 432 1320 1210 28-M52×3
1200 48" PN10 524 1455 1380 32-M36×3
1200 48" PN16 524 1485 1390 32-M45×3
1200 48" PN25 524 1530 1420 32-M52X3


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