Pressure Unloader Valve

Extend the life of your pump and improve startup reliability with this Pressure Unloader Valve. This unloader valve is designed for high-pressure washer systems, particularly those operating at up to 4 gallons per minute and 4000 pounds per square inch. 

  • Material: Brass body with stainless steel shaft for corrosion resistance
  • Max Pressure: 4000 PSI
  • Max Flow Rate: 4.0 GPM
  • Temperature Rating: Up to 194°F
  • Inlet Ports: Two 3/8″ NPT Female
  • Outlet Port: 3/8″ NPT Female
  • Bypass Ports: Two 3/8″ NPT Female
  • Mounting Port: Bottom 3/8″ NPT Female
  • Compatibility: Fits pumps with 1/2″ inlet and 3/8″ outlet; ideal for direct drive systems with engines from 9–13 HP

    Ideal for commercial and industrial pressure washers.