The Groz Heavy Duty Grease Control Valve with a built-in pressure boost mechanism is designed to control the flow of grease  from high pressure grease pumps in demanding industrial environments. With the pistol handle fully pressed, experience uninterrupted flow, while the pressure boost function efficiently elevates line pressure from 6,000 PSI (400 BAR) to 10,000 PSI (690 BAR), effectively addressing frozen grease fittings. The range of Grease Control Valves comes with a pressure relief valve that releases line pressure enabling quick and effortless disconnection. Manufactured from heavy-duty steel, the Groz Booster Valve comes complete with a 6" (150 mm) steel extension and coupler. The valve comes fitted with a 360° Z Swivel', providing versatile options to meet your specific lubrication needs.