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Flange valve——ANSI Flanged Swing Check Valves
Design and Manufacture:Cast steel check valve to BS1868 and ASMEB16.34,API6D;Forged steel check valve API602
Inspection and Test:API598,API600 or API6D
Flanged Ends:ASMEB16.5(for NPS <=24),ASMEB16.4/B,API605,ASMEB16.4/A,MSSSP-44(for NPS>24)
Face to Face:ASMEB16.10
Temperature and Pressure Grade:ASMEB16.34