China High Quality Forged Steel Trunnion Ball Valve Suppliers – Forged Carbon Steel Check Valve,Stainless steel,Duplex Steel, Alloy steel,Bronze,304,316,F51,F55,LF2,F91,Monel,C95800,B62 – UNIQUE

Application Standard

API 602,ASME B16.34,BS 5352 Testing according to API 598 Marking to MSS SP25 Socket Welded Ends to ASME B16.11 Screwed Ends to ASME B1.20.1 Butt Welded Ends to ASME B16.25 Flanged Ends to ASME B16.5  

Construction Features

Forged Steel,Piston,Ball or Swing type Integral Body Seat for Piston and Ball Check valves Separated Seat Ring design for swing check valves Spiral Wound Gasket or Oval Ring Joint gasket Reduced Bore or Full Port, T-Pattern or Y-Pattern, Socket Welded,Threaded,Butt Welded,Flanged End.