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Pressure Cleaning

High Pressure Pumps & Parts

High pressure pumps and the parts that keep them running: Comet triplex pumps, Interpump K1 and PA Pulsar unloaders, safety relief valves, gearboxes and complete valve kits.

Per row

High Pressure Pumps & Parts: common questions

What does a pressure washer unloader do?

The unloader diverts water back to the pump inlet when the gun trigger is released, so pressure doesn’t build up in the system. It also sets the working pressure. A faulty unloader causes pressure spikes, pulsing or the pump running hot in bypass.