The air vacuum pump is a venturi-type AC pump that eliminates moisture from air conditioning systems, making it safe and easy to add refrigerant. The air vacuum pump is simple to function and pulls full vacuum within two mins of being linked to an air line. Contains 1/2 in. ACME (R134a) and R12 connectors.

Air-driven vacuum pumps work when compressed air moving via an orifice increases its velocity and lowers its air pressure. Ambient air flow is drawn in through channels in the generator, creating suction and vacuum. The surroundings stream exits through the exhaust. … These operations require vacuum pumps.