The flange silence check valve adopts the contour design in line with hydraulics to obtain better streamline waterway, and the internal design with fluid conductor can ensure the minimum pressure loss. Silent check valves are installed at the outlet of pumps, which can be quickly closed before the water flow backflow, avoiding water hammer, water percussion and destructive impacts, so as to achieve the purpose of silence, preventing backflow and protecting the equipment. Widely used in water supply and drainage, fire fighting, HVAC, industrial and other systems.

Flange silence check valve is mainly used for pump outlet or water pipeline, to prevent the medium backflow and protect the role of equipment.
Muffler check valve by the valve body seat, valve flap, valve stem, spring and so on. When the inlet section pressure dry outlet and spring pressure, the valve opens. When the pump stops, under the action of spring pre-tensioning, the valve closes quickly before the head falls back, which can effectively prevent the formation of water hammer and eliminate noise.

