Cat Pressure Washer Pump Unloader Valve

Regulators and unloaders each have their own benefits.

Cat pressure washer pump unloader valve.

This pressure washer was one one of the machines that sat for 8 years. The unloader valve is designed to respond to an increase in pressure or a change in water flow. I finally got around to working on it. Cat pumps 7500s brass pressure regulating unloader 2000 psi 6 gpm 3 8 npt.

It offers additional protection to the pump and is recommended in larger capacity and higher pressure systems. Failure to install such relief devices could result in personal injury or damage to the pump or to system components. Cat pumps does not assume any liability or responsibility. The unloader valve can also be used for adjusting the pressure of your machine.

A horizontal internal piston shifts based on downstream pressure to allow flow to either travel to the wand or back to the source through the by pass port. A worn or stuck piston can cause excess bypass flow and low system pressure. When the shut off gun is opened back up the system will return to operating pressure. 12393 cat o ring bearing case 4 95 4 95 add to cart.

007860 cat pump modular unloader valve built in bypass chemical injector 66dx 129 95 129 95 add to cart. Designed and built to the highest quality standards customers count on cat pumps products to keep their equipment running. An unloader is a pressure control valve that sets and maintains system pressure. A pressure washer unloader valve diverts the water flow through the bypass when the trigger on the gun is depressed.

An unloader contains a check valve that traps pressure between the closed downstream device shut off gun and the unloader causing an internal piston to open which allows the pump to unload at low pressure. 118672 cat pump shaft protector 3cp 5cp 5fr pumps 14 95 14 95 add to cart. It is typically set approximately 200 psi above the system pressure set on the primary valve. This is a secondary protection device that should be installed in addition to the primary pressure regulator or unloader.

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