What oil is good for rotary vane vacuum pump? How to cheer?

There will be vacuum pump oil in the rotary vane vacuum pump. After a long time of use, when the vacuum pump oil is emulsified, carbonized or deteriorated, it is necessary to change the oil. Generally, it is necessary to replace the special vacuum pump oil. It is not recommended to use oil. The viscosity is selected according to the needs of the vacuum pump. The following editor will introduce what oil is good for rotary vane vacuum pump? How to cheer? content, welcome to read!

What oil is good for rotary vane vacuum pump?

Rotary vane vacuum pump needs to add pump oil to it. When the oil deteriorates and needs to be replaced, what kind of oil is suitable?

Generally speaking, the oil used for rotary vane vacuum pump is a special vacuum pump oil. Compared with ordinary oil, vacuum pump oil has better characteristics such as viscosity coefficient, anti-oxidation, cooling, oil-water separation performance, etc. The use of special oil can avoid The problem of replacing the vacuum pump oil many times and ensuring the cleanliness of the pump.

There are also various types of vacuum pump oil. The viscosity of different types is different, which will affect the starting power and the ultimate vacuum of the pump. When the viscosity is high, it is beneficial to the vacuum degree, and the starting power is larger. The saturated vapor pressure of the oil at the pump temperature will affect the pump. The ultimate total pressure, the lower the better. Under normal circumstances, the small pump below 4 liters/second can be replaced by No. 1 vacuum oil pump, and the direct-connected pump above 8 liters/second can be replaced by No. 3 diffusion pump oil.

How to refuel the rotary vane vacuum pump?

In the process of using the rotary vane vacuum pump, the use of the special oil for the vacuum pump should be checked frequently. The emulsification, carbonization of the pump oil, the presence of impurities or unknown liquids, and the sudden increase of the vacuum pump oil must be replaced. The method steps of refueling the rotary vane vacuum pump are as follows:

1. Put the container under the oil drain, and unscrew the oil drain screw.

2. Close the suction port, open the rotary vane vacuum pump at the same time, open the gas ballast valve and cover part of the exhaust port of the vacuum pump to generate a sufficient internal pressure, so that the dirty oil can be released quickly.

3. Unscrew the oil drain valve, raise the oil tank of the pump body, and let the old oil in the vacuum pump automatically flow to the position of the oil screw nut to let the oil flow out.

4. After the old oil is exhausted, inject a small amount of clean vacuum pump oil (100~500mL) from the refueling place of the vacuum pump, rinse the inside of the vacuum pump chamber, then start the vacuum pump to run for about 1 minute, then turn off the vacuum pump and release the injected new oil. If the released oil still does not work, you should continue to inject new miscellaneous oil to rinse until it is clean.

5. Tighten the oil drain valve, unscrew the oiling cap on the oiling hole, add new vacuum pump oil to the vacuum pump, make the oil level reach the oil mark line, and then screw on the oiling cap.

The above is what oil is good for rotary vane vacuum pump? How to cheer? I hope it can be helpful to you. If you want to know more about it, you can click on the website page of Leybold Vacuum Pump to browse!