Rotary vane pump

A rotary vane pump is a type of positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In some cases, these vanes can have variable length and/or be tensioned to maintain contact with the walls as the pump rotates.

This type of pump is considered less suitable than other vacuum pumps for high-viscosity and high-pressure fluids, and is complex to operate. They can endure short periods of dry operation, and are considered good for low-viscosity fluids.

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