General Pump - Interpump


General Pump S3 (ZKS3) Safety Relief Valve up to 26.4gpm 10150psi

Interpump S3 / (ZKS3 GP) safety relief valve.

10,150 psi Maximum Rated Pressure

  • 2.6 up to 26.4gpm Flow
  • 1/2" Inlet
  • 284°F Max Temperature

Discharges to atmosphere.


Unloader valves are one of the most important safety devices on a pressure washer system. Failure to install and set the unloader properly could result in a very dangerous situation causing severe damage to the pump and possibly the operator.

Professional installation is required.