Size & Pressure Rating & Standard | |
Size | DN50-DN600 |
Pressure Rating | PN6,PN10, PN16, CL150 |
Face to Face STD | API609, BS5155, DIN3202, ISO5752 |
Connection STD | PN6, PN10, PN16, DIN 2501 PN6/10/16, BS5155 |
Material | |
Body | Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy. |
Disc | DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA |
Stem/Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
Seat | NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA |
The silencing check valve is a valve installed on the outlet pipe of the water pump and specially used to eliminate water hammer. When the pump is stopped, the check valve uses a spring to assist the valve disc to close quickly in advance when the forward flow rate is close to zero, effectively preventing the occurrence of water hammer and thereby eliminating noise. The silencing check valve also has the characteristics of small size, light weight, small fluid resistance, small structural length, fatigue resistance, and long life. In water supply, drainage, fire protection, and HVAC systems, it can be installed at the outlet of the water pump to prevent backwater from flowing back and causing damage to the pump.