Micro resistance slow close check valve used for water supply and drainage pipeline, installed in the pump outlet to prevent medium counter-current and eliminate the destructive water hammer, and effectively reduce the valve door closed water hammer pressure, can guarantee the safe operation of the network.
It has the advantage of light valve disc, opening, energy-saving effect is remarkable, small fluid resistance, water hammer removing mechanism design is novel, stable and reliable sealing performance, wear resistance, long service life, smooth operation, no vibration, no noise, etc.