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Double Disc Check Valve

Double Disc Check Valve

Design Standard
Design and Manufacture Stand: API 594
End to End Dimension Standard: API6D
Flange End Dimension Standard: ANSI B16.5
Inspection and Test Standard: API 598
Product Details

Wafer Type Dual Plate Swing Check Valve

Design Codes

Size Range

1.5" - 60" (DN40 - DN1500)

Pressure Rating For ASME

  1500LB,2500LB,Suit For ASME/MSS/API Flange

Pressure Rating For ISO

PN10,PN16,PN25,PN40,Suit For ISO Flange

Pressure Rating For JIS

5K,10K,20K,Suit For JIS Flange

Body Material




Design Standard

API 594 and Manafacture's

End Facing


Main features

The valve is opened/closed by the valve disc moving in a direction parallel to the valve seat hole axis and can only be installed on horizontal pipelines with the major function of preventing medium backflow when shutting down the pump and maintaining the water column required by pumping.

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