[students] problems of piston type multifunctional pump control valve application and characteristics?

    [answer] piston type multifunctional pump control valve is mainly used for installed in the pump outlet, large diameter water pipe network system to prevent the media back, intelligent valve phenomenon of water hammer and the water hammer. The hydraulic control valve with electric valve, check valve and water hammer eliminator three functions, which can effectively improve the safety and reliability of water supply system, dual chamber, dual valve structure can make the rapid closure of the valve in the pump stop after 90% (medium causes the pump to prevent backflow reversal), then slowly close the remaining 10% (to eliminate the destructive water hammer) piston valve reliable performance, high strength, smooth movements, to prevent water hammer and stop