What You Should Know About the Oil Properties of Vacuum Pumps?

Choosing the perfect oil variant is an essential consideration for a vacuum pump. In the market, you can find various vacuum pump manufacturers offering a stunning oil variant. It is vital to figure out the best oil variant that suits the vacuum pump. Wrong oil creates adverse effects to pump operation. Before choosing oil, you must know it’s essential properties. You can understand properties and compare variants to select the best one. With the advent of technology, you can easily spend time on the web and understand properties. 

Vapor pressure:

Vapor pressure is a necessary aspect of choosing the right vacuum pump oil. If vapor pressure is too high, it will affect the vacuum chamber working region. Low vapor pressure is vital. Vacuum pump oil with low vapor pressure is suitable for different things like

  • Simplify trapping

  • Enhance performance

  • Prevent contamination

Vacuum pump oil manages good vapor pressure for operating purposes. However, contamination causes several issues with the pump. You can avoid them by keeping a vacuum pump with low pressure. 

Pour point:

Pour point is another important property when it comes to vacuum pump oil. It determines temperature below that never loses the property of flowing. If the temperature is not ideal, liquid never flows appropriately. Therefore, people must look at the pour point to choose oil for the vacuum pump. If the oil fails to lubricate correctly, the minimum temperature of the surrounding pump is lower. It may also stop flowing and develop several problems. 

Lubricating capability:

Different types of vacuum pump oil bring lubrication. Oils like roots blower vacuum pump oil and rotary vacuum pump oil can remarkably avoid inner wear and tear. It is a great solution to enhance pump life and a crucial property for vacuum pump oil. Synthetic oils manage more lubricating ability than mineral vacuum oil. Booster and rotary pump oils come with good lubricating ability.

Gas solubility:

Vacuum pump oil is effective in absorbing process gas under operating conditions. However, vacuum pump oil may also change frequently in a specific scenario. For that reason, you must speak with reputable vacuum pump manufacturers that make oil with stunning qualities. As a result, vacuum pump users discover great qualities in oil and withstand the process gas.

  • Dissolution of pump oil may also change the viscosity.

  • Synthetic oil is entirely resistant to the gas solubility.

  • Low gas solubility is excellent for vacuum pump oil. 

  • Whether you change the pump oil or reactive substance frequently, synthetic vacuum pump oil is necessary.


Viscosity is an essential concern for liquid resistance to flow. If the liquid is oil, viscosity determines resistance to flow. When oil viscosity is too low, the liquid is thin and never seals perfectly. Besides, oil viscosity is too high, indicating that the liquid is too thick. Therefore, it does not lubricate components properly in the pump. Consequently, it is essential to focus when searching for the best vacuum pump oil. The vacuum pump is available with a gearbox that needs oil with a high viscosity.