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
Wafer Type Dual Plate Swing Check Valve
1.5" - 60" (DN40 - DN1500)
Pressure Rating For ASME
Pressure Rating For ISO
PN10,PN16,PN25,PN40,Suit For ISO Flange
Pressure Rating For JIS
5K,10K,20K,Suit For JIS Flange
NBR/EPDM/VITON/METAL(Same as Body)
API 594 and Manafacture's
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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