Diaphragm type multifunctional pump control valves is installed at the outlet of pump in high building water supplying system and other to prevent backward flow,waterhammering, water-hitting.The valves have the function of the following valves:motorized valves,non return valves and water-hammering eliminator and can improve the safety in the system.The valves have slow-open,quick-close and slow-close function to prevent water-hammering when open or close pump.Only push the button for closing or opening pump and the valves can run according to the pump's operation procedure with large flow
and little pressure loss.JD745X diaphragm type multifunctional pump control valves is for DN 600 or less valves.

main imensions: