China High Quality Api 602 Check Valve Manufacturers – Pressure Seal Gate Valves,Carbon steel,Stainless steel,Duplex Steel, Alloy steel,Bronze,A105N,304,316,F51,F55,LF2,F91,Monel,C95800,B62,CS,SS – UNIQUE

Size: 1/2"~4" Pressure Rating: Class 1500~2500 BB,WB,PSB OS&Y,Outside Screw and Yoke Solid Wedge Renewable Seat Rings Thread /SW / BW/Flange   Design:API602/ASME B16.34/BS5352 Face to Face:ASME B 16.10/BS EN558 End Flange: ASMEB 16.5 End BW:ASMEB16.25 Pressure TemprASME 16.34 Test:API598 Special :NACE MR-01-75