The air vacuum pump is a venturi-type AC pump that eliminates moisture from air conditioning systems, which makes it safe and simple to add refrigerant. The atmosphere vacuum pump is easy to run and pulls full vacuum within two mins of being linked to an air line. Includes 1/2 in. ACME (R134a) and R12 connectors.
Air-powered vacuum pumps work when compressed air moving through an orifice increases its velocity and lowers its air pressure. Ambient air flow is used through stations in the generator, creating suction and vacuum. The atmosphere stream exits through the exhaust. … These procedures require vacuum pumps.