Electronic Control Valves
DN25-DN900
Model 131/631

MODEL
  • 131/631
  VALVE DESCRIPTION
  • Simple Proven Design
  • Quality Solenoid Pilot Controls
  • Ideal for SCADA Systems
  • Multi-Function Capability; Hydraulic Backup
  • Security System to Prevent Unauthorised Changes
  • Easy to Maintain

The Cla-Val Series 131/631 Electronic Control Valves are designed specifically for applications where remote control of the valve is preferred. It is a hydraulically operated, pilot controlled, diaphragm valve. The solenoid pilot controls are actuated by electrical signals from the optional 131VC-1 Electronic Valve Controller. The solenoid pilots either add or relieve line pressure from the cover chamber of the valve, causing it to open or close as directed by the electronic controller.

Series 131/631 Electronic Control valves can be configured to perform a wide range of functions, such as; pressure reducing, pressure sustaining, flow control, or level control. The electric controls can also be combined with hydraulic controls to create dual function, or fail-safe capability.

The basic 131-01/631-01 Electronic Control Valve (Schematic shown below) includes the main valve and solenoid pilot controls. Optional features include the 131VC-1 Electronic Valve Controller and the X117D Valve Position Transmitter. If the check feature option is added, and a pressure reversal occurs, the downstream pressure is admitted into the cover, closing the valve.

SIZE RANGE
  • DN25-DN900

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Data Sheet