Hydraulic Counterweight Check Valve

Nominal diameter : DN200 ~ DN3000
Nominal pressure : PN2.5 ~ PN40
Medium : water, sea water , sediment water, oil
Valve open time : 20 to 90 seconds ( adjustable)
Fast off time : 2.5 to 20 seconds (adjustable )
Slow closing time: 6 to 90 seconds ( adjustable)
Fast off angle : 70 ° ± 10 °
Slow off angle : 20 ° ± 10 °
Full state minimum flow resistance coefficient : 0.3
Control voltage : AC220V, DC24V
Status signal: passive switch signal , 4 ~ 20mA






    Description

    Double sealed automatic control valve combines electric valve, electric butterfly valve, and a check valve function, and through quick shut off gentle movements to eliminate water hammer hazards, protect the safety of the pump and pipe network system, widely used in electricity, metallurgy, construction, water supply and drainage pumping stations and other automated systems.

    FEATURES

    • three eccentric structure
    •  inclined to 75 degrees
    • reducing the shut valve stroke
    •  shortening the distance ring slip
    • reducing the friction torque
    •  anti-sediment
    • pressure automatic compensation effect
    •  simple operation and maintenance

    The key parts are made of stainless steel, copper alloys and other high-quality materials.It can also be installed valve position transmitter, sends 4 ~ 20mA analog valve position signal to a remote control room, remote monitoring.