HydraForce RV52-26 Pilot Operated Relief Valve


The HydraForce RV52-26 is a screw in, cartridge style, pilot operated (two stage), spool type relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis.

The RV52-26X blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the pilot relief off its seat, allowing the main stage to shift, opening port 1 to port 2.

Note that this valve cannot be used in cross-over relief applications.

Key features include:

  • Adjustments cannot be backed out of the valve.
  • Adjustment options A, B and C: positive stops prevent springs from going solid.
  • Hardened spool and cage for long life.
  • Rapid, smooth response to pressure surges.
  • Cost-effective cavity.

Pressure ratings:

  • Pressure rating: Port 1, 344.7 bar (5000 psi) and Port 2, 103.4 bar (1500 psi)
  • Proof pressure: 689.5 bar (10000 psi)
  • Burst pressure: 1379.0 bar (20000 psi)
  • Relief pressure defined: 41.4 to 345 bar (600 to 5000 psi)
  • Crack pressure defined: Pressure evident at 7.6 lpm (2 gpm)

Flow rating: 189.3 litres / minute (50 gallons / minute) at maximum pressure.

This valve can be used with mineral based or synthetic hydraulic fluid with lubricating properties.

For more information, you can download the HydraForce RV52-26 technical catalogue here.

Contact our award-winning technical team for further technical details and configuration options.

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