Skip to Main Content

General Pump PULSAR4KHP Trapped Pressure Unloader - 4050 PSI, 10.5 GPM

Mfr. Model #:
KR Part #:
1.74 lbs
In Stock
Now Only!
Provides reduced pressure loss and easier gun operation! 

Product Description

Adjustable Unloader

The General Pump PULSAR4KHP trapped pressure unloader valve helps to make your gun operation easier! Able to operate at pressures up to 4050 PSI, this valve includes a knob and locknut that allows adjustment of minimum working pressure. 

This highly reliable unit regulates the maximum pressure of your power washing system by varying the bypass discharge flow. It has 3/8" NPTF connections and is designed for consistent use with water temperatures up to 140° F. The unit can handle intermittent temperature spikes of up to 195° F. Please note that the manufacturer recommends incorporating a safety relief device (sold separately) when using this unloader with positive displacement pumps.


Dimensions: 7.51" x 3.25" x 1.97"

  • Maximum flow: 10.5 GPM
  • Maximum pressure: 4050 PSI
  • Rated pressure: 4500 PSI
  • Maximum continuous temperature: 140° F
  • Maximum intermittent temperature: 195° F
  • Inlets (2): 3/8" NPTF
  • Outlet: 3/8" NPTF
  • Bypasses (2): 3/8" NPTF
  • General Pump item #PULSAR4KHP
  • Weight: 1.5 lbs.

Product Reviews

Frequently Asked Questions