HydraForce CR08-38 Bi-Directional Relief Valve, Poppet Type


The HydraForce CR08-38 is a screw-in, cartridge style, direct acting, bi-directional, poppet type hydraulic relief valve for use as a pressure limiting device in more demanding hydraulic circuits, requiring low hysteresis and low internal leakage.

The valve blocks flow from port 1 to port 2 bi-directionaly with the spring chamber constantly drained at port 3. On attainment of a pre-determined pressure at either port 1 or port 2, the spring-opposed poppet is forced from its seat.

Key features include:

  • Adjustments cannot be backed out of the valve.
  • Adjustments prohibit springs from going solid.
  • Hardened parts for long life.
  • Compact, industry-common size.

Pressure ratings:

  • Pressure rating: Port 1 and Port 2 – 207 bar (3000 psi), Port 3 – 103 bar (1500 psi)
  • Proof pressure: 448 bar (6500 psi)
  • Burst pressure: 896 bar (13000 psi)
  • Reseat pressure: 90% of crack pressure at 0.95 lpm (0.25 gpm)

Flow ratings: 30.3 litres per minute (8 gallons / minute)

Maximum internal leakage: 0.4ml / minute (8 drops / minute)

The CR08-38 can be operated with mineral based or synthetic hydraulic fluid with lubricating properties.

For more information, you can download the HydraForce CR08-38 technical catalogue here.

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

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