A Reliable Pressure Washer Unloader Valve

The Suttner ST-261 Pressure Washer Unloader Valve is a tried-and-true component that's been built to provide rock-solid pressure control for top-notch pressure washer systems. Made by Suttner, a brand that's synonymous with quality and hard-wearing equipment in the cleaning industry, this unloader is built to handle flow rates of up to 8 GPM and take on maximum pressure of up to 3600 PSI. This makes it a great fit for a wide range of medium-duty commercial and industrial applications - think fleet washing, concrete prep, and general property cleaning jobs.

The main job of this unloader is to keep your pressure washer pump safe and in good nick. When you let go of the spray gun trigger, the ST-261 instantly picks up on the release and redirects that high-pressure water flow (up to 8 GPM) away from the discharge line and back to the pump inlet or a bypass tank. This bypass action takes the heat off the hose and the pump head, stopping the kind of fast overheating that can cause serious damage through thermal bypass.

Product Benefits and Design Features

The ST-261 has been engineered to be super easy to use and integrate into all sorts of cleaning setups, delivering top-notch performance within its given specs.

Robust Construction and Thermal Handling: The valve body and internal parts are designed to withstand the constant strain and heat of pressure and water. It's rated for water temperatures of up to 176°F, making it a good fit for lots of hot water pressure washer systems. You'll get a smooth, consistent transition between the high-pressure and bypass modes, which is vital for keeping your system stable and the pump seals on the job.

Installation Flexibility: One big advantage of the ST-261 is that it can be mounted in a control panel. This means you can secure the unloader onto the panel or frame of a cart, making it a cinch to work on and giving your system a professional look. This is a real plus for system builders and contractors who want tidy, well-organised setups.

Easy Connections: All the ports are labelled and sized for standard pro equipment. The INLET and OUTLET ports are both 3/8" FPT (Female Pipe Thread), while the BYPASS port is 1/4" FPT, and the handy GAUGE PORT is also 1/4" FPT - so you can easily add a pressure gauge and keep an eye on system performance during cleaning jobs.

Key Features and Specifications

This reliable Suttner unloader valve comes with a whole load of features to help you manage flow like a pro:

MODEL: ST-261
MANUFACTURER: Suttner
MAX PSI: 3600 PSI
MAX GPM: 8 GPM
MAX TEMP: 176°F
INLET: 3/8" FPT
OUTLET: 3/8" FPT
BYPASS: 1/4" FPT
GAUGE PORT: 1/4" FPT connection for easy pressure gauge addition
FEATURE: Can be panel mounted

Installation and Reliability

The ST-261 is a must-have component for any pro pressure washer designed for regular use. The standard 3/8" FPT ports and panel mounting make it a doddle to integrate. Just make sure to get the sizing right - the 8 GPM max flow rate makes it a great match for many popular medium to large pressure washer pumps.

As a Suttner product, you can rest assured of its top-notch quality & ability to stand the test of time - after all its robust build is built to withstand the on/off cycle of the spray gun which is basically the norm for a typical cleaning job. To grab this ideal item, just add the ones you need to your shopping cart and then head on over to checkout. If you have any questions about how it'll play nice with your setup or the nitty gritty of installing it, it's worth checking out the specs or giving our stock team a ring. This unloader is raring to go to make things a heck of a lot easier & safer for your next cleaning project.

KIT 2572 BOLTS & O-RINGS MINIMATIC 4/B

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KIT 2572 BOLTS & O-RINGS MINIMATIC 4/B

KIT 2572 BOLTS & O-RINGS MINIMATIC 4/B

Product Information

Shipping & Returns

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