A rotary vane vacuum pump can be an oil-sealed rotary displacement pump. The pumping system
consists of a housing (1), an eccentrically installed rotor (2), vanes that move radially under spring
drive (3) and the inlet and store (4). The outlet valve can be oil-sealed. The inlet valve is designed as a
vacuum safety valve that’s always open during operation. The working chamber (5) is located
inside the casing. Rotor and vanes divide the functioning chamber into two separate spaces having
adjustable volumes. As the rotor turns, gas flows into the enlarging Screw Vacuum Pump suction chamber until it really is sealed
off by the second vane. The enclosed gas is certainly compressed until the outlet valve opens against
atmospheric pressure. Regarding gas ballast operation, a hole to the exterior is opened, which
empties in to the sealed suction chamber on leading side.
The Rotor moves with the aid of a motor attached to it.