The Cla-Val Models 94-58 and 694-58 Combination Pressure Reducing and Surge Control Valve with Solenoid Override consist of a Cla-Val Hytrol main valve, reducing control and a solenoid control connected to the main valve. The solenoid override is used to close the valve and downstream pressure relief pilot. This valve automatically reduces higher inlet pressure to a steady lower downstream pressure, regardless of changing flow rate and/or varying inlet pressure.
A typical application for this valve is to reduce high transmission line pressures to lower distribution system levels while opening and closing on command. The solenoid control feature can be activated by an electrical signal from a timer or programmer.