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Rotary vane vacuum pump parameters

Rotary vane vacuum pump product range:

Rotary  vacuum pump is an oil - sealed mechanical vacuum pump. The working pressure range of 101325~1.33 * 10-2 (Pa) belongs to low vacuum pump. It can be used independently or as a front stage 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, medicine and other production and scientific research departments.


The rotary vane pump can take out the dry gas in the sealed container. If there is an air ballast, it can also take out a certain amount of condensable gas. But it is not suitable for removing gases that contain too much oxygen, are corrosive to metals, react chemically to pump oil, and contain dust particles.

2X Rotary vane vacuum pump.jpg

Parameters of rotary vane vacuum pump:

Rotary vane pump is one of the most basic vacuum acquisition equipment in vacuum technology. Rotary vane pumps are mostly medium - sized pumps. There are two types of rotary vane pump: single stage and double stage. The so-called two - stage, is in the structure of two single - stage pumps in tandem. Usually made of two - stage, to obtain a high vacuum degree. The relationship between the pump speed of the rotary vane pump and the inlet pressure is as follows: under the inlet pressure of 1333Pa, 1.33pa and 1.33 x 10-1 (Pa), the pump speed shall not be lower than 95%, 50% and 20% of the nominal pump speed respectively.


Rotary vane vacuum pump structure:

Rotary vane pump is mainly composed of pump body, rotor, rotary vane, end cover, spring, etc. A rotor is installed eccentrically in the cavity of the rotary vane pump. The outer circle of the rotor is tangent to the inner surface of the pump chamber (there is a small gap between the two). When rotating, the top of the rotor is in contact with the inner wall of the pump chamber by centrifugal force and spring tension, and the rotor rotation drives the rotor to slide along the inner wall of the pump chamber.


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