Parker Hydraulic Group
Unloading Valve

Unloading valves provide cost effective safety for your hydraulics by relieving hydraulic pressure when the system is de-energized. Valves conform to OSHA Rule 29CFR1910.147 to enhance safe system operation. Needle valve allows for manual accumulator bleed-down. 

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  • Lightweight aluminum housing
  • 2-way normally open solenoid
  • 3000 PSI operating pressure
  • Encapsulated 17W Solenoid
  • Four standard voltage and connection options
  • Viton seals standard
  • Small compact manifold design
  • Leakproof SAE ports standard
  • Needle valve override
  • 10 GPM flow rate @ 3000 PSI
  • 8 GPM @ 2000 PSI average