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Basic Requirements For Diffusion Pump Oils
- Feb 26, 2018 -

1, diffusion pump oil molecular weight to be large, this is to reduce the pump limit pressure;
2, diffusion pump oil at room temperature saturation, steam pressure to low, so that the pump can work under high export pressure;
3, diffusion pump oil in the boiling temperature saturation, vapor pressure should be as large as possible, pump oil thermal stability (under high temperature is not easy to decompose) and antioxidant properties (when contacting with the atmosphere will not because of oxidation change pump oil performance) better;
4, diffusion pump oil solidification point and low temperature viscosity;
5, diffusion pump oil non-toxic, corrosion-resistant, low cost.