The silencer check valve is an automatic valve. Its function is to prevent the medium in the pipeline from flowing backwards. It is mainly used for the pipe that the medium is unidirectional and only allows the medium to flow in one direction to prevent accidents. Noise check valve maintenance and maintenance are as follows: 1) When opening and closing storage and transportation should be in the shutdown device, and should do the following: â‘ muffler check valve flap should be fixed in the open position. â‘¡ the diameter of both ends of the mouth blocked with foam board, the port must be boring stuffy plug to be dust-proof, rust-proof, keep the channel clean and end surface formation; â‘¢ cylinder parts of the appropriate packaging protection, shock and collision avoidance; ) Noise reduction check valve should be placed in a smooth, pneumatic drive upward, not mutually squeezed. 3) When placed for a long time should be regularly checked. Every three months on the two channels, the sealing surface of the dirt and rust, welding port protection status checks, wipe dirt and rust, re-painted anti-rust oil to be protected. 4) In order to prevent the countercurrent medium, check valve should be installed on equipment, devices and pipelines; 5) muffler check valve is generally suitable for cleaning media, should not be used for medium containing solid particles and larger viscosity; 6) Nominal passage through the 50mm horizontal pipe should be used vertical silencer check valve; 7) muffler check valve should be stored in a dry and ventilated room, so moisture, rain, rust.
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