Unloader valve · Stainless steel 709628

• Flow50 l/min
• Pressure range0–250 bar
• Inlet connection1/2" BSP(F)

Stainless steel unloader valve for CAT PUMPS high-pressure plunger pumps, typically used with trigger gun, lance and nozzle in a high-pressure cleaning system. When the gun closes, the pressure wave opens the by-pass fully and the entire pump flow circulates at low pressure – this reduces wear, noise and energy consumption while the pump keeps running. When the gun opens again, full flow and full pressure are available at once. The valve regulates the working pressure and protects pump and system against damage from overpressure. Typical applications are high-pressure cleaning, vehicle washing and central cleaning systems. Fluid temperature up to 80 °C.