From ThomasNet: Autoclave Engineers has designed a group of Air-Driven, Positive-Displacement, High Pressure Liquid Pumps designed for service with Oil, Water and many Chemicals.
The most popular "ASL Series" is available in a variety of drive ratios and includes both Single and Double Air-Drive designs that are capable of up to 60,000 psi (4135 bar). Manual "Hand-operated" options are available in our "ACHL Series" pump line and our AHL Series Double-Acting, Double Air-Drive pumps are designed for those that are looking for the combination of both high flow and high pressure.
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Autoclave Engineers Manufactures High Pressure Air-Driven Pumps to 60,000 psi