NRV Reflux Valve

Parts & Material
No.PartMaterial
1BodyCast iron,Ductile iron,Carbon steel,Stainless steel
2SeatNBR, EPDM, PTFE, Viton, Neoprene Hypalon, Silicon
3Lower shaftStainless steel 416, 316, 304
4DiscDuctile iron+Ni (Nylon/Epoxy), Cf8 CF8+PTFE (PFA) CF8M, CF8M+PTFE(PFA)
5Upper shaftStainless steel 416, 316, 304
6Locating PinCarbon steel
7BushingPTFE
8O ringNBR, EPDM