Unloaders and Relief Valves


S3 Adjustable Safety Relief Valve 10000psi

Interpump S3i safety relief valve protects your power washer pump from pressure spikes.

Maximum Rated Pressure: 10000psi

  • Max Flow: 21.41gpm
  • Inlet: 1/2" MPT

Does Not Replace the Unloader Valve.

These safety valves are for use as a backup to an unloader or main relief in an open system without a trigger operated spray gun.