Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" OutletThe Interpump K5. 3 is a high capacity flow sensitive unloader valve designed for professional and industrial pressure washer systems. It ensures smooth system regulation by automatically diverting water flow through the bypass circuit when the spray gun is released, protecting the pump and minimising recoil. Suitable for systems operating up to 200 Bar and delivering flow rates between 25 and 41 litres per minute, the K5. 3 is ideal for heavy duty