- Gear pumps
- Rotary pistons
A rotary vane vacuum pump is oil sealed. It consists of housing, a rotor, vanes, the inlet and outlet. The rotor is eccentrically installed, while the vanes move radially through centrifugal forces. There is a working chamber situated inside the pump housing, which is restricted by the rotor, stator and vanes. The vanes and the rotor divide the chamber into two compartments with variable volumes.
The working principle of the rotary vane vacuum pump is simple. As the rotor turns, it allows gas to flow into the sanction chamber till it is sealed off by the second vane. This enclosed gas is the compressed forcing the outlet valve to open. Atmospheric pressure naturally forces oil to the suction chamber, lubricating it and sealing the vanes. Global Vac is a leading manufacturer of rotary vane vacuum pumps for sale in the North American market.