Screw vacuum pump is an ideal dry pump that emerged in the 1990s. Its performance advantages include:

  1. There is no lubricating oil in the studio, and a clean vacuum can be obtained.

  2. There is no oil and gas pollution in the studio, and the extracted gas has a high process gas recovery rate and convenient tail gas treatment. At the same time, it also avoids the emission of oil, gas, oil fumes, etc., resulting in minimal environmental pollution.

  3. There is no lubricating oil in the working chamber, which avoids operational failures caused by emulsification and deterioration of lubricating oil, improves system stability, and reduces the loss of lubricating oil in the pump.

  4. The pump has a wide range of applications, with anti-corrosion coatings on the working chamber and screw rotor surface, which can adapt to harsh working environments.

  5. There is a gap sealing structure inside the pump chamber, which is insensitive to small particles of dust. Moreover, the pump chamber is a straight through type without a lower partition structure, so dust is not easily deposited in the pump chamber. Explosion proof configuration suitable for extracting flammable and explosive gases.

  6.When the pump is working, the temperature inside the pump chamber can reach 100 ℃, making it difficult for condensable gases to condense. The pump chamber is a straight through structure, and the exhaust port is at the bottom of the pump chamber, making it easy to discharge impurities inside the pump chamber. Therefore, it is suitable to extract condensable gases.

  7. The pump can be used alone or in combination with Roots pumps, molecular pumps, etc. Composed of an oil-free vacuum unit, it can serve as a front-end pump for the unit. The intake pressure of a single pump can operate normally within the range of 1 Pa to atmospheric pressure, with high pumping efficiency, greatly simplifying the vacuum pumping system.

  8. The screw pump needs to maintain a high temperature during operation, and the natural heat dissipation efficiency of the pump's outer surface is relatively improved. The temperature difference between the cooling water and the pump is large, resulting in good cooling effect. The consumption of cooling water in the pump is small, which affects the low-temperature requirements of the cooling water.

  9. The unique method of directly connecting multi-stage rotors in a spiral manner eliminates the structure of the lower baffle and eliminates the intermediate stage suction and exhaust process. The working process is simple and continuous, with high efficiency and stable pump operation.

  10. The parts inside the pump chamber are sealed with gaps, and there is no contact friction between the parts, resulting in minimal damage and a long service life. At the same time, the pump speed is high and the overall size is small.

  11. Screw pumps have a simple structure, few types and quantities of parts, and are easy to maintain.

  12. Fast start-up, low start-up current, minimal impact on the power grid during start-up, and the pump reaches normal pumping speed after start-up, making it the preferred choice for ecological environment protection in this century