Hydraulic Actuator - Pressure Reducing Valve Interface

Pressure Management

Palmer Environmental'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.

1 The Hydraulic Actuator is fitted in place of the adjusting screw of the standard pilot on the PRV

2 To adjust the PRV outlet, the ControlMate progressively extends or retracts the moving "rod" of the actuator in small steps under closed loop control

3 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

4 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

Hydraulic Actuator - Pressure Reducing Valve Interface

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