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Wafer check valve is automatic, in a direction under the action of the fluid pressure, the valve flap open, the reverse flow of fluid by the fluid pressure and the valve flap valve self-acting on the valve seat, which cut off the flow.
Design Feature
  • Dual plate
  • Light weight
  • Compact design
  • Metal seat
  • Spring load disc
Design Standard
  • Design: API 594 / BS 1868
  • Face to face: ASME16.10
  • Flange end: ASME B16.5 / ASME B16.47
  • Test: API598
Technical Specification
  • Size: 2”~40”
  • Class: 150Lb~900Lb
  • Connection: Double flange / Wafer / Lug
  • Temperature: -60°C to +450°C
  • Application: Petroleum refining / Chemical / Power plant
Material Option
  • Body: Carbon steel(WCB,LCB) / 
    Stainless steel(CF8,CF8M) / 
    Duplex stainless steel(4A,5A,6A) / 
    Aluminium bronze alloy(C95400,C95500,C95800,A
  • Disc: F304 / F316 / C95800
  • Spring: SS316 / Inconel 625
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