Silent check valve: The upper part of the valve clack and the lower part of the bonnet are processed with guide sleeves. The disc guide can be freely raised and lowered in the valve guide. When the medium flows downstream, the disc opens by the thrust of the medium. When the medium stops flowing , The valve flap falls on the valve seat by self-sagging to prevent the medium from flowing backward. The direction of the medium inlet and outlet channel of the straight-through lift check valve is straight with the direction of the valve seat channel; the vertical lift check valve has the same direction of the medium inlet and outlet channel as the valve seat channel, and its flow resistance is smaller than that of the straight-through type.
Precautions for the silent check valve device method:
1. Do not allow the check valve to accept weight in the piping system. Large check valves should be independently supported so that they are not affected by the pressure generated by the piping system.
2. When installing, pay attention to the direction of medium flow should be the same as the direction of the arrow marked on the valve body.
3. The lift-type straight valve check valve should be installed on the straight pipeline.
4. Lifting horizontal flap check valve should be installed on the horizontal pipeline.
Post time: Oct-30-2021