Proportional Pressure Reducing Relieving Valve

A customer wanted to improve the performance of an off-highway vehicle by replacing the component that controlled the main stage of a hydraulic valve. Designed as a continuously variable, normally open valve, this proportional valve operated over various pressure ranges to optimize controllability.

Proportional Pressure Reducing-Relieving Valve

Typical Applications

  • Off-highway hydraulics
  • Auxiliary/PTO control
  • Turbo charger control
  • Variable valve timing
  • Transmission valves
  • Shift-by-wire control
  • Industrial controls
  • Oil pump controls

Features and Benefits

  • Compact design
  • Fast response
  • Low differential pressure in stand-by
  • Can be optimized for specific pressure ranges to optimize controllability.
  • Can be optimized to configure with customer electronic drivers.


Supply voltage 12 or 24 Vdc
Pressure hysteresis < 5%
Nominal linearity < 2%
Rated operating pressure 69 bar (1000 psi)
Rated control pressure 0-31 bar (0-450 psi) as needed
Operating temperature range -30 to 120°C
Command step response < 60 ms
Pressure step response < 3 ms

* All TLX components are customized to fit system requirements, meaning technical specifications are unique to each customer and design, and the examples given here are for illustration purposes only.