Zgrao V.B85/310 Pressure Washer Unloader Valve – 5075 PSI, 26.4 GPM

The Zgrao V.B85/310 Pressure Washer Unloader Valve is a high-performance replacement designed for reliable pressure control in commercial and heavy-duty cleaning setups. Featuring a built-in adjustment knob, this valve allows for precise and quick tuning of pressure levels, ensuring consistent performance across a range of tasks. Its robust construction includes a solid brass body and stainless steel internals, reinforced with an anti-rotation stem and high-precision seals to withstand wear, corrosion, and extreme operating pressures.

With a maximum pressure rating of 5075 PSI and a flow capacity of 26.4 GPM, this valve delivers strong performance while maintaining compatibility with a wide range of pressure washer pumps. The standard 1/2″ NPT ports ensure easy installation, and its direct replacement design makes it suitable for models including the V.B 85, V.B 310, YU21405, VRT100, and Cat 7542. This plug-and-play solution supports brands like PA, AR, Comet, Cat Pump, BE, and General Pump, making it a versatile upgrade for both maintenance and heavy-duty applications.

Ideal for tradies and professional cleaners, the Zgrao valve minimises downtime with straightforward installation and long-lasting durability. Its compact yet sturdy build—measuring 22.86 cm x 12.7 cm x 5.84 cm and weighing just 1.32 kg—ensures it fits seamlessly into existing setups without compromising performance.