Rotary vane pumps have an eccentric rotor, and up and down sliding vanes which scrape along the pump wall. Because of this the rotary vane pump can achieve high pressure and vacuum. There are two types of vane materials in several sizes. The dry running rotary vane pumps get their lubrication by the wear of the carbon fiber vanes and the oil lubricated versions use fiber reinforced composite blades and oil. Oil lubricated pumps need oil separators to filter the oil from the air, dry running pumps have an optional air filter to filter the carbon from the air. (if necessary)
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