Hydraulic Actuator

Accurate, Reliable PRV Control

Fluid Conservation System’s ControlMate range of PRV controllers are supplied with a Hydraulic Actuator (patent pending) - a novel device used as the interface between the electronic controller and the hydraulic PRV.

The Hydraulic Actuator is fitted in place of the adjusting screw of the standard pilot on the PRV. To adjust the PRV outlet, the ControlMate progressively extends or retracts the moving "rod" of the actuator in small steps under closed loop control. The moving rod exerts a force on the pilot’s spring in a similar manner to that of the adjusting screw in a standard PRV installation.

The main PRV outlet follows its pilot valve setting, controlling the Actuator’s moving rod. This leads to very accurate and repeatable control of the PRV outlet pressure.

In two point pressure control applications, the two required pressure settings are mechanically set and locked on the Actuator. The outlet pressure of the main PRV cannot be outside of these values. In full modulating applications, the minimum and maximum pressures within which the controller can operate are set and locked on the Actuator.

This means that failure of electronics, incorrect operation by the user, burst or frozen pipes cannot cause closure of the main PRV.

Dimensions 115mm x 185mm x 85mm (standard; may differ according to PRV type)
Weight 1.2kg
Construction material Brass