The diffusion pump is mainly gas molecules along the direction of the steam to do high-speed movement, the gas molecules hit the pump wall and reflected back again by the steam flow collision and re-flow along the steam flow direction to the pump wall. After many violent collisions, the gas molecules are compressed to a low vacuum end, and then the steam injected from the next few nozzles is compressed in multiple stages to be finally compressed by the foreline pump, while the oil vapor is trapped on the cooled pump wall Condensation and then returned to the lower re-heated, so the cycle of reciprocating work to achieve the purpose of pumping. In fact, the main part of the vacuum pump family. Diffusion pump Its main features are: 1, the pressure generated by the foreline pump is higher than the maximum back pressure, the diffusion pump can not work properly. 2, the pumping speed of diffusion pump can be calculated according to the theory of gas molecular motion. 3, pumping capacity, pumping speed from 190L / S to 49000L / S range to choose from. 4, diffusion pump can be stable for a long time continuous work. At present, many domestic research institutes and manufacturers are designing and studying diffusion pumps. With the development and application of new technologies, new materials and new methods, better performance and adaptability to various industrial needs Pump will be produced. Its development is not only expected in the history of China's industry but also anticipated by the entire history of mankind. Believe in the joint efforts of all walks of life, diffusion pump in the vacuum pump sector will have its own piece of heaven. Related Articles: Steam jet vacuum pump Features jet vacuum pump