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VacOil® 20 Grade Vacuum Pump Oil - 1 Gallon

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Product Description

20gradeicon-th.jpgVacOil® 20 Grade is a severely hydro-treated paraffinic oil that is double distilled through a molecular distillation process to remove light end fractions. Unique in comparison to competitive oils, VacOil® 20 Grade is highly saturated and contains less than 0.01% sulfur similar to technical white oils. Its high molecular weight and viscosity index provides longer service life and reduced build up of varnish and carbonized oil on the internal pump components. VacOil® Grade 20 vacuum pump oil is ideal for rotary vane pumps and high vacuum blowers, and eliminates cross contamination when used in mechanical and diffusion pumps.

VacOil® vacuum fluids are superior quality molecularly distilled vacuum pump oils engineered to perform and provide the ultimate protection from wear that causes pump repairs and pump failures. Lab tests reveal superior performance such as viscosity change and sediment weight when tested against competitive brand oils, outlasting and outperforming other vacuum oils.


20 Grade Vacuum Pump Oil SDS

VACOIL Spec Sheet (PDF)

Vacuum Pump Compatibility

  • Diffusion pumps
  • Direct drive rotary vane pumps
  • Blowers


  • Vapor Pressure: < 1 x 10^-6 Torr
  • Viscosity @ 100 ºF: 62
  • Flash Point: 245 °C. 473 °F
  • Fire Point: 271 °C. 520°F
  • Pour Point: -15ºC
  • Specific Gravity: 0.869

Brand Equivalents

  • Alcatel AE200/A120
  • Leybold HE200
  • Inland 20
  • VWR 20
  • Varian CS
  • Stokes V Lube "L"
  • CMP 20
  • CVP 200


  • Higher viscosity index for superior lubrication
  • Greater resistance to thermal decomposition
  • Higher molecular weight for reduced backstreaming
  • Reduced aromatic content
  • Extremely low sulphur content
  • Excellent vapor pressure, low volatility, and high corrosion resistance


  • Optical and decorative coatings
  • Leak detection
  • Freeze drying
  • Mass spectrometry
  • Sputtering

Product Videos

VacOil - How to Change Vacuum Pump Oil 01:54

Best practices to change vacuum pump oil on a two-stage rotary vane vacuum pump. VacOil - Premium Vacuum Fluids

  • VacOil - How t...
    Best practices to change vacuum pump oil on a two-stage rotary...
  • VacOil - 20 Gr...
    Learn about the benefits of VacOil's 20 Grade vacuum pump oil....

Other Details

1 Gallon

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Product Reviews

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  1. too soon 4 Star Review

    Posted by on 24th Feb 2014

    I received it Friday afternoon. The ordering, shipping, and label are good. How could I possibly rate the product's performance or quality so soon? In fact, I'm not convinced I could ever acurately determine that, unless it was absolutely horrible or I ran a side-to-side comparison with identical eqt.