Interpump K3.2 Flow Sensitive Unloader Valve – 100 Bar, 16–21 LPM, 3/8" Inlet, 1/2" OutletThe Interpump K3. 2 is a flow sensitive unloader valve designed for small to mid sized pressure washer systems requiring reliable automatic pressure regulation. When the spray trigger is released, the valve diverts water back through the bypass, helping protect the pump and improve longevity. With a maximum pressure rating of 100 Bar and a flow range between 1621 L min, this valve is ideal for applications such as light commercial cleaning, mobile