China manufacturer Air Vacuum Pump with Hot selling

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 easy to operate and pulls full vacuum within 2 minutes of being connected to an air line. Includes 1/2 in. Ever-power (R134a) and R12 connectors.

Air-driven vacuum pumps work when compressed air passing 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 stream exits through the exhaust. ... These operations require vacuum pumps.

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