Working principle of rotary vane vacuum pump

Rotary vane vacuum pump (rotary vane pump) is an oil sealed mechanical vacuum pump. Its working pressure range is 101325~1.33 * 10-2 (Pa), which belongs to the low vacuum pump. It can be used alone or as a front pump for other high vacuum pumps or ultra high vacuum pumps. It has been widely used in metallurgy, machinery, military industry, electronics, chemical industry, light industry, petroleum and pharmaceutical production and scientific research departments.

Rotary vane pump can extract the dry gas from the sealed container. If it is equipped with a gas-holding device, it can also extract a certain amount of condensable gas. But it is not suitable for the extraction of oxygen-rich, corrosive to metals, chemical reactions to pump oil, and gas containing particulate dust.2XZ direct drive rotary vane vacuum pump


Rotary vane pump is one of the most basic vacuum equipment in vacuum technology. Rotary vane pumps are mostly small and medium sized pumps. Rotary pump has two kinds: single stage and double stage. The so-called two-stage structure is to connect two single stage pumps in series. It is usually made in two stages to achieve higher vacuum.

vacuum pump is applied in vacuum packaging machine