What Is Vacuum Pump Oil

Vacuum pump oil is substance inside the pump that lubricates the pumping apparatus while also collecting moisture and contaminants from evacuated systems.

What is vacuum pump oil.

Process pumps and other vacuum pumps driven by a gearbox will require a much more viscous oil such as an iso 220 sae 50. This ability of the oil prevents inner wear and tear of the pump and increases the pump life. So a very important property of vacuum pump oil is lubricating ability. These vacuum pumps have an ultimate vacuum sometimes called blank off vacuum of 0 010 torr 10 microns 1 x 10 2 torr or 0 0133 mbar.

A vacuum pump in general is an added benefit to any engine that is high performance enough to create a significant amount of blow by. Vacuum pump oil is a special lubricating oil for mechanical vacuum pump. Rotary vane vacuum pumps normally utilize an iso 68 sae 20 or iso 100 sae 30 oil. Mobil vacuum pump oil has a high degree of chemical stability enabling it to resist oxidation and the subsequent formation of sludge and deposits an essential characteristic in all cases where continuous service is involved.

The typical oil used in a large rotary piston vacuum pump is a mineral oil that has been through a distillation process to reduce its vapor pressure. When the vacuum pump is running the oil in the pump cavity plays a sealing role which makes the pump obtain the necessary vacuum degree. Liquid ring vacuum pumps generally require an iso 22 or iso 32 viscosity. They are rotary vacuum pump oil and roots blower vacuum pump oil.

Although there are different types of pumps the requirements for oil quality are the same. A vacuum pump will in general add some horse power increase engine life keep oil cleaner for longer. This is why changing oil as soon as it needs to be changed is critical. Different vacuum pump designs have different lubrication needs.

Simply put it s what keeps the pump pumping. Synthetic oils typically have 11 more lubricating ability compared to mineral vacuum oils. Vacuum pump oil serves as a mechanical lubricant and a medium for trapping gas molecules. This enables the oil to retain its original properties such as viscosity and demulsibility and so prolong oil service life.