Ansi class 2500 for pressure seal Carbon steel or stainless steel Check valve bolted bonnet design

Design description: Lift type; Bolted cover; Optional: weld cover; Spring loaded disc or piston disc; Connectrion: threaded end, socketed end

Thread type(npt, bspt, din serial ends) Material: a105, f304, f316, f11, f22, f304l, f316l

No. Parts name materials 1 body astm a105 astm f304 astm f316 3 sealing seat astm f6 astm f304 astm f316 4 sealing ring ss304 ss316 5 retaining nut astm a105 astm f304 astm f316 6 o-ring carbon steel 7 p.s.Lock nut astm a194-2h astm a194 b8