304/316 stainless steel Thread Check Valve 1.Investment casting technology 2.CNC lathe processed ... BSPT,NPSM6.Pressure:800PSIThe main products:1.150LBS pipe fitting: elbow 45,tee,round cap,hexagon nipple,union,bushing ... : 1pc,2pc,3pc ball valve,flanged end ball valve,gate valve,check valve,globe valve,Y-strainer,sanitary valve etc.3.Quick coupling: ... benefit . 304/316 stainless steel Thread Check Valve