A rotary vane vacuum pump can be an oil-sealed rotary displacement pump. The pumping system
consists of a casing (1), an gear motor for greenhouse eccentrically installed rotor (2), vanes that move radially under spring
power (3) and the inlet and store (4). The store valve is definitely oil-sealed. The inlet valve was created as a
vacuum safety valve that's always open during operation. The working chamber (5) is located
inside the housing. Rotor and vanes divide the functioning chamber into two separate spaces having
variable volumes. As the rotor turns, gas flows into the enlarging suction chamber until it really is sealed
off by the next vane. The enclosed gas is definitely compressed before outlet valve opens against
atmospheric pressure. In the case of gas ballast operation, a hole to the exterior is opened, 
which
empties into the sealed suction chamber on the front side.
The Rotor moves by making use of a motor attached to it.
