The air vacuum pump is a venturi-type AC pump that eliminates moisture from air conditioning systems, making it safe and simple to add refrigerant. The atmosphere vacuum pump is simple to operate and pulls full vacuum within two a few minutes of being connected to an air range. Includes 1/2 in. ACME (R134a) and R12 connectors.
Air-driven vacuum pumps work when compressed air moving through an orifice increases its velocity and lowers its air pressure. Ambient air is drawn in through channels in the generator, creating suction and vacuum. The surroundings stream exits through the exhaust. … These functions require vacuum pumps.