The Williams Hydraulics 5AS60 Air Pump 36.6 cubic inches is high strength reinforced aluminum alloy reservoir is lightweight and corrosion resistant. It has a pressure relief valve for overload protection. The Williams Hydraulics 5AS60 Air Pump 36.6 cubic inches suggested air pressure range is 90 to 175 psi and 6 to 12 bar. It is designed to be used with single acting cylinders with a dual stage release control valve. It features dust cover protection for the release control valve. The Williams Hydraulics 5AS60 Air Pump 36.6 cubic inches offers a 4 way control valve for operation of double acting cylinders. It has a maximum working pressure of 10,000 psi and 700 bar. The Williams Hydraulics 5AS60 Air Pump 36.6 cubic inches has an oil output flow rate of: no load 61 in and load 9, with a input air pressure range of 100 to 200 psi.