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 air flow vacuum pump is easy to operate and pulls complete vacuum within two moments of being connected to an air range. Contains 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 air flow stream exits through the exhaust. … These operations require vacuum pumps.