Electric proportional pressure relief valve (optionally with control)

Offered here are pre-assembled electrically proportional pressure relief valves.
The system can be used to regulate hydraulic pressure remotely. This allows, for example, adjusting the torque of hydraulic motors or the force in hydraulic cylinders.

Possible control options:

• Without control (coil only)
  • The pressure can be regulated via an external PWM signal
• Proportional amplifier only supplied
  • The pressure relief valve can be adjusted via a 0-10V signal or directly by a variable resistor of 4.7k (for example, a potentiometer or joystick)
• Including control (with potentiometer)
  • with main switch for on/off
  • Power supply via three-pin socket
  • 2m connection cable between control unit and plug
  • 5m connection cable between control unit and pressure relief valve

The system is fully pre-assembled and ready to use immediately.

Technical data:

• max. nominal flow rate: up to 120 l/min
• adjustable pressure: 10 to 350 bar (please observe max. pressure)
• max. pressure: 210 bar (also available up to 315 bar on request)
• Nominal voltage: optionally 12 or 24 VDC
• Protection class: IP65 (adjustment box: IP67)
• Hysteresis: under 5%
• Oil filter rating: 18/16/13 according to ISO4406
• Oil temperature: -20°C to 80°C
• Connection thread: 1/2" BSP

Connection assignment

1= Inlet
2= Return to tank (pressureless)