Rotary Vane Belt Drive Vacuum Pumps are sliding vane type of vacuum pumps driven by electric motor with a V Belt Pulleys arrangement. These pumps are highly suitable for continues rating and are available with air cooled or water cooled models. The Rotor is fitted in eccentric possession of the stator and while the rotor is rotating, the vanes fitted In the slots are thrown out of the rotor towards the periphery of the stator and eventually slid inside the rotor slots since the clearances is very closed, Air Back Streaming is prevented thereby the available volume is swept out from one end of the stator to the another end connection of the stator.