The micro-resistance slow closing check valve is used for the water supply and drainage pipe. It is installed at the outlet of the water pump to prevent the countercurrent of the medium and eliminate the destructive water hammer, and can effectively reduce the water hammer pressure of the valve to be closed to ensure the safe operation of the pipe network. The utility model has the advantages of light valve flap, large opening degree, remarkable energy-saving effect, small fluid resistance, novel design of a water hammer eliminating mechanism, stable and reliable sealing performance, wear resistance, long service life, stable operation, no vibration and no noise . General and more with water conservancy, electricity, oil and other important areas.
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