NRV Reflux Valve
| Parts & Material | ||
|---|---|---|
| No. | Part | Material |
| 1 | Body | Cast iron,Ductile iron,Carbon steel,Stainless steel |
| 2 | Seat | NBR, EPDM, PTFE, Viton, Neoprene Hypalon, Silicon |
| 3 | Lower shaft | Stainless steel 416, 316, 304 |
| 4 | Disc | Ductile iron+Ni (Nylon/Epoxy), Cf8 CF8+PTFE (PFA) CF8M, CF8M+PTFE(PFA) |
| 5 | Upper shaft | Stainless steel 416, 316, 304 |
| 6 | Locating Pin | Carbon steel |
| 7 | Bushing | PTFE |
| 8 | O ring | NBR, EPDM |
