Rotary vane vacuum pump is a kind of variable volume mechanical vacuum pump, which uses the rotary motion of the rotor and the rotating vane which can slide in the rotor groove to obtain vacuum. When the working fluid is used to lubricate and fill the dead gap of the pump chamber to separate the exhaust valve from the atmosphere, it is commonly known as the oil seal rotary vane vacuum pump. Rotary vane vacuum pump, the pump and the motor directly connected or connected with the coupling is called direct rotary vane vacuum pump. In each kind of pump, there are single-stage and double-stage.

In the single-stage pump, due to the different structure and parameters, the ultimate pressure and use of the pump are also different. Rotary vane vacuum pump has been widely used and constantly improved. In terms of pump structure, in order to prevent oil return when the pump is stopped, some are equipped with check valves that can automatically cut off the oil circuit, some are equipped with inlet channel stop valves, and some are equipped with oil pumps and control structures to automatically cut off the gas path to keep the pump port in a vacuum state when the pump is running suddenly.

In terms of accessories, there are mist eliminator, odor filter, population filter for blocking broken glass, dust filter, steam condensation trap and chemical trap, and temperature control water regulating valve to control pump temperature to improve steam extraction rate and protect pump. Speaking of rotary vane vacuum pump, in fact, it is very familiar to many people, which is probably due to its variety and wide distribution. Rotary vane vacuum pump, vacuum pump usually has dry screw vacuum pump.

Water ring vacuum pump, reciprocating vacuum pump, rotary vane vacuum pump and other types. With the development of science and technology, vacuum pump is widely used. Rotary vane vacuum pump uses the eccentric rotor to drive the blade, the volume of different chambers in the pump changes, so that the internal pressure changes. Is currently the most widely used vacuum pump, and in this rotary vane vacuum pump another working accessory product - vacuum pump oil is also very important. If the rotary vane vacuum pump oil is of poor quality or mixed with impurities, it will cause Scratch and corrosion on the inside of the pump body with the flow.

The main product of vacuum pump is rotary vane vacuum pump, which seriously affects its working level and efficiency, and even leads to the reduction of service life of vacuum pump.

Rotary vane vacuum pump is also known as multi chamber rotary vane vacuum pump, because its blades divide the vacuum pump body into three chambers. As the medium to obtain vacuum, rotary vane vacuum pump oil plays the role of lubrication, cooling and sealing in the vacuum pump, which also shows the importance of rotary vane vacuum pump oil for the whole body operation.