Slient check valve mainly by the valve body, the valve seat, the valve seat, the valve petal, the axle bush and the spring and the spring and so on the major parts is composed, internal flow channel uses the streamline design, the pressure loss and is small. The valve petal opens shuts the travelling schedule to be very short, stops pumps when may fast close, prevented the huge water hammer sound, has the static sound closure the characteristic.
This valve mainly is suitable for draining water, the fire prevention warmly passes the system, may install to water pump outflow point, prevented the medium flows back wards and water hammer to the harm which pumps.
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