1. Vacuum pumps are used to pump out the gas inside a specific sealed container, so that the container to obtain a certain vacuum of the basic equipment, due to the high degree of development of modern science and technology, the application of vacuum pumps throughout the scientific fields and various enterprises and institutions. Due to the high development of modern science and technology, vacuum pumps have been applied in various scientific fields and various enterprises and institutions, which can be used in metallurgy, chemical industry, light industry, petroleum, medical treatment, pharmacy, printing and dyeing, electrical appliances, electric vacuum, semiconductors, foodstuffs, atomic energy, textiles and other scientific research institutions, colleges and universities, industrial and mining enterprises for scientific research, production and teaching; and they are widely used in oil presses.
2. Because the vacuum pump is made of ferrous metal, and more precise, the whole pump work is linked together, so it is not suitable for pumping the oxygen-containing high, toxic, explosive corrosion of ferrous metal and the vacuum oil chemical action of various gases, can not be used as a compressor and transfer pump. If there is a pump with gas ballast device, it can pump out certain condensable vapors.
3. The vacuum pump can be used to obtain the vacuum degree in 10~3 torr below the vacuum work, and with other vacuum work.
4. Vacuum pumps are generally used in an environment where the room temperature is not lower than 5℃ and the relative temperature is not higher than 90%.