Introduction
No. 3 diffusion pump oil is a kind of deep dewaxing lubricating oil which is processed by vacuum molecular distillation, aluminum silicate adsorption and membrane degassing process. No. 3 diffusion pump oil has extremely low saturation vapor pressure, proper chemical composition, ideal ultimate vacuum degree and high pumping speed. Its high thermal oxidation stability makes sure that it can work in harsh environment for a long time.
Compared with pure organic oils (hydrocarbons, esters, etc.), silicone diffusion pump oil have the advantage that it can present a high temperature and oxidation resistance. Our high quality diffusion pump oil has ideal properties and is therefore perfectly suited for the use with regard to ultimate vacuum, pumping speed, backing pressure and back stream rates.
Features
◆ Qualified for all Diffusion Pumps
◆ Chemically inert, high thermal stability
◆ High oxidation resistance
◆ High radiation resistance
◆ High moisture resistance
◆ Water vapour resistance
◆ Excellent price/performance ratio
Specification
Class | Diffusion pump oil |
Kinematic viscosity 50℃mm2/s | 68 |
Kinematic viscosity 40℃mm2/s | 66 |
Pour Point (℃) | ≤-13 |
Flash Point (℃) | ≥284 |
Mechanical Impurity (%) | 0 |
Moisture (%) | 0 |
Ash (%) | ≤0.001 |
Acid Valuemg KOH/g | ≤0.006 |
Ultimate pressure (Pa) | ≤90x10-7 |
Saturated Vapor Pressure (Pa) | ≤120x10-8 |
Carbon Residue (%) | ≤0.02 |
Copper Corrosion Grade | ≤1 |
Specific Gravity | 100 |
Colorimetric | <0.5 |
Net Weight | 3.5kg |
Application
As working fluid of various types of glass and metal diffusion pumps, No. 3 diffusion pump oil is suitable for high vacuum distillation, vacuum smelting, electronics industry, atomic pump industry and other fields which requires high vacuum environment. It can also be used as the working fluid of direct connected vacuum pump.
