Electrically proportional pressure relief valve (control unit optional)

Finished, electrically controlled proportional pressure relief valves are offered here.
The system can be used to regulate hydraulic pressure remotely. This allows, for example, the torque of hydraulic motors or the force in hydraulic cylinders to be adjusted.

Possible control methods:

• Without control unit (coil only)
  • The pressure can be regulated using an external PWM signal
• Supply proportional amplifier only
  • The pressure relief valve can be controlled with adjustable settings using a 0-10V signal or directly via an adjustable 4k7 resistor (for example, a potentiometer or joystick)
• Includes control unit (with potentiometer)
  • With main switch for switching on/off
  • Power supply via three-pin socket
  • 2 m connection cable between control unit and plug
  • 5 m connection cable between control unit and pressure relief valve

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

Technical data:

• Max. rated flow: up to 120 l/min
• Adjustable pressure: 10 to 350 bar (please observe the max. pressure)
• Max. pressure: 210 bar (also available up to 315 bar on request)
• Rated voltage: 12 or 24 VDC, selectable
• Protection rating: IP65 (control box: IP67)
• Hysteresis: below 5%
• Oil filter rating: 18/16/13 according to ISO4406
• Oil temperature: -20°C to 80°C
• Connection thread: 1/2" BSP

Port assignments

1= Inlet
2= Return to tank (pressureless)