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Your location is:Industry&products >> Check valve >> Silent check valve
Silent check valve
Product overview
The silent check valve is mainly composed of valve body, valve seat, valve disc, bearing bush and spring. The internal flow passage adopts streamline design with small pressure loss. The opening and closing stroke of the valve disc is very short, and it can be closed quickly when the pump stops to prevent the huge water hammer sound, and has the characteristics of silent closing.
The valve is mainly suitable for water supply and drainage, fire protection and heating and ventilation system, and can be installed at the pump outlet to prevent the damage of medium backflow and water hammer to the pump.
The valve is mainly suitable for water supply and drainage, fire protection and heating and ventilation system, and can be installed at the pump outlet to prevent the damage of medium backflow and water hammer to the pump.
Product details
Characteristic:
The internal parts of the valve are streamline design, small flow resistance, energy saving, self spring force to close, can prevent water hammer, simple structure, reliable performance. The valve should be installed vertically (valve body axis is vertical).
Material of main parts:
Body / disc: gray cast iron / ductile iron / cast steel
Spring: stainless steel
Guide sleeve: copper alloy
Stem: stainless steel
Performance specification
Nominal diameter DN: DN50-350mm
Nominal pressure PN: 1.0 ~ 2.5MPa
Maximum working pressure: 1.0 ~ 2.5MPa
Test pressure PS (shell): 1.5 ~ 3.75MPa
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