Cat Pressure Washer Pump Unloader Valve

All systems require both a primary pressure regulating device i e regulator unloader and a secondary pressure safety relief device i e pop off valve safety valve.

Cat pressure washer pump unloader valve.

For 50 years cat pumps has offered the most dependable positive displacement high pressure triplex pumps available. This is a secondary protection device that should be installed in addition to the primary pressure regulator or unloader. Failure to install such relief devices could result in personal injury or damage to the pump or to system components. When the shut off gun is opened back up the system will return to operating pressure.

An unloader is a pressure control valve that sets and maintains system pressure. 121391 cat ceramic plunger for 5cp6190 pump 59 95 59 95 add to cart. The unloader valve is designed to respond to an increase in pressure or a change in water flow. It offers additional protection to the pump and is recommended in larger capacity and higher pressure systems.

The unloader valve can also be used for adjusting the pressure of your machine. It is typically set approximately 200 psi above the system pressure set on the primary valve. 12393 cat o ring bearing case 4 95 4 95 add to cart. 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.

Regulators and unloaders each have their own benefits. 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. Direct mount multi gun trapped pressure unloader valves for pressure washers from cat pumps in options up to 4000 psi and 52 gpm. 118672 cat pump shaft protector 3cp 5cp 5fr pumps 14 95 14 95 add to cart.

Cat pumps 7500s brass pressure regulating unloader 2000 psi 6 gpm 3 8 npt. I finally got around to working on it. This pressure washer was one one of the machines that sat for 8 years. Designed and built to the highest quality standards customers count on cat pumps products to keep their equipment running.

A worn or stuck piston can cause excess bypass flow and low system pressure.