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What type of oil does a vacuum pump use

Processing the base oil through a single distillation reduces the vapor pressure of the oil so that it is suitable for single stage oil sealed vacuum pumps. It also reduces the sulphur content of the oil, which is one of the first constituents to break down in high temperature conditions. This oil has a straw color.

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What type of oil does a vacuum pump use

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  1. WHAT TYPE OF OIL DOES A VACUUM PUMP USE? OIL FOR VACUUM PUMPS MINERAL OILS AND OTHER VACUUM PUMP FLUIDS SINGLY DISTILLED OIL Processing the base oil through a single distillation reduces the vapor pressure of the oil so that it is suitable for single stage oil sealed vacuum pumps. It also reduces the sulphur content of the oil, which is one of the first constituents to break down in high temperature conditions. This oil has a straw color. DOUBLE DISTILLED OIL Going through a second distillation reduces the vapor pressure and the sulphur content even more. This oil can be used on slightly more aggressive processes and is used in two stage vacuum pumps that create a lower pressure. This oil has a paler straw color due to the lower sulphur content. www.west-technology.co.uk/vacuum/sales/vacuum-pumps/reconditioned-pumps/

  2. ULTRA GRADE OIL This oil is a fairly recent addition to the vacuum pump industry, and used mainly on small laboratory sized two stage pumps. When Edwards introduced the RV model vacuum pumps in the early 1980s the running temperature of the pump was higher than other pumps to help increase the water vapor handling capacity. The double distilled oils available at the time had a shorter life when operating at a higher temperature. I was slightly involved in the project to develop hydro-treated oils for vacuum pump use that had a higher temperature rating and improved chemical resistance. Hydro treating is an alternative process to solvent refining. WHITE OR TECHNICAL WHITE OIL This oil has even more processing than single and double distilled oils to reduce the sulphur content, to the point that it has very little color at all. It can be used on processes that have chemical contamination, such as LCMS instruments (liquid chromatography mass spectrometer), and has a longer life than less processed oils. It appears that oil called “45” oil may be similar, but is a semi-synthetic oil. This “45” oil has fixed peaks on a mass spectrometer analysis that allows the mass spec user to eliminate these peaks when analyzing samples. Regular oil from oil wells around the world has similar peaks but they are not as stable as for the semi-synthetic product. FLUSHING OILS Flushing oils are sold by a number of companies to help clean pumps that become contaminated. They are typically used only during a vacuum pump service to soften and remove baked on contaminants. The oil contains a higher amount of solvent product and may have a higher vapor pressure than regular vacuum pump oil. www.west-technology.co.uk/vacuum/sales/vacuum-pumps/reconditioned-pumps/

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