Vacuum pump oil is the key to the normal operation of the vacuum pump. Its selection should be based on multiple factors, including oil viscosity, saturated vapor pressure, ultimate total pressure, ultimate partial pressure, lubricity, cooling performance, cleanliness, oxidation stability, heat stability, demulsification resistance and anti-foaming properties. Choosing the right vacuum pump oil can improve the operating efficiency of the pump, reduce parts wear, reduce energy consumption, and extend the service life of the pump.

When selecting vacuum pump oil, its sealing performance needs to be considered to ensure rapid startup at low temperatures and good sealing and low temperature rise at high temperatures. Saturated vapor pressure is a key indicator. The saturated vapor pressure of the oil should be as low as possible and should still be lower than the limit pressure specified by the vacuum pump at the highest operating temperature of the pump.

Lubricity is another important characteristic of vacuum pump oil. Good lubricity helps reduce friction and wear, reduce energy consumption and extend mechanical life. In addition, vacuum pump oil should have good cooling performance to reduce the generation of friction heat and take the heat out of the pump body in time.

Cleanliness is also a factor to consider when selecting vacuum pump oil. Good cleanliness helps prevent corrosion and rust, and protects the friction surface from oil deterioration or external erosion. Oxidation stability is an indicator of the anti-aging performance of lubricating oil, and has special performance requirements for vacuum pump oil used in industrial assembly line operations.

Heat stability refers to the oil's ability to withstand high temperatures, that is, the lubricant's resistance to thermal decomposition. Demulsibility is an important physical and chemical property of industrial lubricants, especially in the vacuum drying process used in the pharmaceutical, food, ceramics and other industries, the demulsibility of pump oil is crucial.

Anti-foaming property is also an important characteristic of vacuum pump oil. Because vacuum pumps often produce foam during operation, pump oil with good anti-foaming property can reduce the damage of foam to the oil film, reduce wear and promote oxidation and deterioration of lubricating oil.

When choosing a vacuum pump oil, you should also consider its compatibility with the pump and whether it meets specific application requirements. For example, some vacuum pumps may require specific oils to prevent corrosion or adapt to specific temperature ranges. In addition, regular replacement of vacuum pump oil is an important step in maintaining vacuum pump performance, because the quality of the oil will gradually deteriorate over time. Factors such as high temperature, oxidation or physical and chemical reactions with process substances can accelerate this aging process.

When disposing of used vacuum pump oil, you should follow local recycling guidelines for proper disposal and avoid pouring it into the sewer. It is also important to store the vacuum pump oil properly. It should be stored in a dry, ventilated environment, away from direct sunlight, and keep the storage area clean.

In general, multiple factors need to be considered when selecting vacuum pump oil to ensure the efficient operation and long-term stable performance of the vacuum pump.