304/316 stainless steel Thread Check Valve 1.Investment casting technology 2.CNC ... lathe processed 3.SS304,SS316,CF8/CF8M, 304/316 stainless steel Thread ... 1.44084.Size:1/4"-4",DN8-DN1005.Thread ends NPT,DIN259,DIN2999,BSPP,BSPT,NPSM6. ... 1pc,2pc,3pc ball valve,flanged end ball valve,gate valve,check valve,globe valve,Y-strainer,sanitary valve etc.3.Quick ...