This type electric switch valve is hydraulically operated,diaphragm actuated control valve,which opens in response to a remote pressure rise command and shuts in the absence of that command.
Description
ELECTRIC SWITCH VALVE
This type electric switch valve is hydraulically operated,diaphragm actuated control valve,which opens in response to a remote pressure rise command and shuts in the absence of that command.
TYPICAL APPLICATIONS Computerized Irrigation Systems; Remote/Elevated Systems; Turf Irrigation or Buried Pipeline Irrigation; Greenhouse Irrigation; Low Supplied Pressure Irrigation Systems; Energy Saving Irrigation Systems; FEATURES 1.Hydraulically Controlled,Normally Closed Valve
* Line pressure driven *Closes upon control failure *Amplifies and relays weak remote command 2.Engineered Plastic Valve with Industrial Garde Design *Highly durable,chemical and cavitation resistant *No internal bolts and nuts 3.High Flow “Y” Valve Body with “Look Through” Design *Ultra-high flow capacity,Low pressure loss 4.Unitized Flexible Super Travel(FST) Diaphragm and Guided Plug *Smooth closing *Requires low opening and actuation pressure *Prevents diaphragm erosion and distortion 5.Simple In-Line Inspection and Service
HOW IT WORKS Line pressure [1] is applied to the Control Chamber [2] through the held open,3-Way Hydraulic Relay Valve (3W-HRV) .This creates superior closing force that moves the Diaphragm Assembly [4] to a closed position.Upon pressure rise command,the 3W-HRV switches,releasing pressure from the control chamber and thereby opening the Main Valve.The 3W-HRV also features local manual opening and closing.
