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Rubber disc check valve consists of body,cover and rubber disc.Inside of the rubber disc is steel plate,steel bar and reinforced nylon liner and the outside is rubber and the disc life is more than one million open-close cycles.The valve is designed with unimpeded bore,so the pressure loss is very little and no sundries pile up in the body and it is easy to maintain this kind of valve.The valve is used for feeding system and installed at the outlet of the pump to prevent the fluid flowing backward and water hammering.Also it can be installed at the inlet of inlet/outlet's bypass pipe to prevent the water in the cistern flowing backward into the pipe. Main technical parameters Nominal Pressure: 1.0-1.6MPa Nominal Diameter: 50-600mm Service:water and weak corrosive fluid Working Temperature:0-80ºC Flanged End: GB/T17241.6 GB9113 Inspection and Test: GB/T 13927 API 598

Disc

Steel packed with nylon

Part	Body	Cover
Material	Cast iron	Cast iron

DN	50	65	80	100	150	200	250	300	350	400	450	500	600
L	203	216	241	292	356	495	622	698	787	914	978	978	1295