Check Valve

Thin Type Wafer Single Disc Swing Check Valve

Check valves is usually installed in pipeline system,prevent medium from flowing back.check valve is automatic valve that it is opened and closed by pressure of fluid.In the past, we use H44 flange coupling swing type check valves&H44 flange coupling lift type check valve.Traditional check valve's volume is big,strong resistance of fluid,Water-hammer's pressure is high when valves close,repair and installation is inconvenient,service life is not long. Against the problem of traditional check valve,Our company has developed H76 lug wafer type check valve standard wafer type dual-plate swing check valve,H74 wafer type sing-plate swing check valve,H71 wafer type lift check valve,and series of those products according to many years of researching,designing and manufacturing.All of products we are as required of the standard of America API and Germany DIN. Being used on the industry of oil.petro,metallurgy,electric,light industry,food,we have received high praise from customers.

Single plate wafer lift check valve Features

Design and manufacture:API594,API 6D,JB/T 8937

Face to face dimensions:ANSI B16.10,API 6D,GB/T 12221,DIN 3202,EN558-1

End Connection:ANSI B16.5,ASME B16.47 A/B,ISO 10423,EN1092-1,BS 4505,JIS2210,GB 9112~9124,HG20592~20635 etc

Wall Thickness:API 594,JB/T8937

Testing standard:API598,GB/T13927,DIN3230

Size:1 1/2"-42",DN40-DN1000

Pressure rating:Class150~Class600,PN10-100

Body:A105,LF2,LF3,F22,F304,F316,F304L,F316L,F51,F53,F55,F44 etc

Disc: SS201,SS304,SS316,Aluminium Bronze

Seat:NBR, EPDM, oil & acid & alkali resitant VITON-A, steam resitant VITON-B, hypalon, PTFE, metal to metal

Spring material:316,Inconel 750,Innconel718 etc

Applicable Medium: water ,gas,oil,and other causticity medium.

Test Item Shell Test Seal Test Back Seal Test Air Seal Test
Medium Water Air
Unit MPa lbf/in2 MPa lbf/in2 MPa lbf/in2 MPa lbf/in2
Pressure (Class) 150 3.1 450 2.2 315 2.2 315 0.5-0.7 60-100
300 7.8 1125 5.6 815 5.6 815
400 10.3 1500 7.6 1100 7.6 1100
600 15.3 2225 11.2 1630 11.2 1630
900 23.1 3350 16.8 2440 16.8 2440
1500 38.4 5575 28.1 4080 28.1 4080

Single plate wafer type swing check valve Standard materials of parts

No. Part Material
1 Lifting ring bolt SS
2 Screw SS
3 Axle bushing SS
4 Spring SS or Inconel-X
5 Body WCB, CF8,CF 8M , CF3, CF 3M
6 Disc WCB, CF8, CF 8M , CF3, CF 3M
7 Disc hinge pin axle SS304,SS316, SS 304L , SS 316L
8 Pin axle bearing SS304,SS316, SS 304L , SS 316L
9 Plate SS304, SS316, SS 304L , SS 316L
10 Sealing face Metal, NBR, BUNA, EPDM
Other cast steel material is also available upon request.

Thin Type Wafer Single Disc Swing Check Valve

Wenzhou Topnotch Machine Co.,Ltd is a professional leader China Thin type wafer Single disc swing check valve ,thin type swing check valve,thin type wafer check valve,single disc swing check valve,single disc wafer swing check valve,wafer type single disc swing check valve manufacturer with high quality and low price.Welcome to contact us!

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