ASME Wafer Check Valve

1.Small and light,tightly sealed,easy in mainteance.
2.Two torsion springs are used exxcreting on each of the pair valve plates,which close the plates quickly and automatically.
3.The quick-close action prevent the medium from flowing back and reduce water hammer pressure.
4.Can be installed both horizontally and vertical descending on pipeline.
5.Safe and reliable in operation,high interference-resistance.

Size DN40-DN600(1.5"-24")
Standard:
1.Design and manufacture:API609
2.Test and inspection:API598
3.Face to face(end to end):API594
4.Flanged connection:ASME B16.1 125LB&150LB

Application:water,oil,gas etc.
Working Conditions
Suitable temperature:0°c--160°c
Working Pressure:10bar/16bar
Testing Pressure:
Shell:15bar/17.6bar
Seal:11bar/24bar

                                     Specification
Name           Material                 ASTM
Body          Cast Iron               ASTM A126B
              Ductile Iron            ASTM A536
              Carbon Steel            A216 WCB
              Stainless Steel         A351 CF8M
                                      A351 CF8
            

Disc          Plated Ductile Iron     ASTM A536
              Aluminum Bronze         B148-954
              Stainless Steel         A351 CF8M
                                      A351 CF8
            
Stem          Stainless Steel         A276-410
                                      A276-304
                                      A276-316
                                  
Seat          NBR(NITRILE)
              EPDM
              NEOPRENE(NR)
              VITON(FKM)
              NATURAl RUBBER(NR)