A rotary vane vacuum pump is 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
force (3) and the inlet and outlet (4). The store valve is certainly oil-sealed. The inlet valve is designed as a
vacuum safety valve that is always open during operation. The working chamber 
(5) is situated
inside the casing. Rotor and vanes divide the working chamber into two separate spaces having
adjustable volumes. As the rotor turns, gas flows in to the enlarging suction chamber until it is sealed
off by the second vane. The enclosed gas is Torque Arm usually compressed before outlet valve opens against
atmospheric pressure. Regarding gas ballast procedure, 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 mounted on it.
rotary vane pump
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