Vacuum pump unit manufacturers: matters needing attention in selecting vacuum pumps
In order to allow everyone to better choose and use vacuum pumps, we have summarized the following points for attention so that everyone can choose the right product. According to actual use, we should pay attention to these:
Vacuum pump unitManufacturer: Whether the vibration generated by the vacuum pump has an impact on the process and the environment. If the process is not supported, select a vibration-free pump or take a series of measures to prevent vibration.
Vacuum pump unitManufacturer: Understand the composition of the pumped gas, whether there is particulate dust in the gas, whether it is corrosive, etc. When choosing a vacuum pump, you need to understand the gas composition, and you need to choose the corresponding pump for the pumped gas. If the gas contains steam, particles and corrosive gases, it is necessary to consider installing auxiliary equipment on the inlet pipe of the pump.
Vacuum pump unitManufacturer: The vacuum pump can discharge all gases generated during the vacuum equipment under its working pressure.
Vacuum pump unitManufacturer: correct combination of vacuum pump. Sometimes, one pump cannot meet the pumping requirements. Because the vacuum pump selectively draws air, a combination of several pumps is required to complement each other to meet the pumping requirements. If the titanium vacuum pump has a high pumping speed for hydrogen, but can not pump helium, and the triode sputtering ion pump (or bipolar asymmetric cathode sputtering ion pump) has a certain pumping speed for argon, the vacuum device will get the corresponding vacuum degree.
Vacuum pump unit manufacturers: requirements of vacuum equipment for oil pollution. If the equipment clearly requires oil-free, various oil-free pumps should be selected, such as water ring pumps, molecular sieve adsorption pumps, sputtering ion pumps, cryogenic pumps, etc. If the requirements are not strict, you can choose an oil pump and take some measures to prevent oil pollution.
Vacuum pump unit manufacturers: the correct selection of the working point of the vacuum pump. Each pump has a certain working pressure range. Therefore, the working point of the pump should be selected within this range, and it is not allowed to work for a long time under 25~30mmHg.
If not allowed to pollute the environment, you can choose an oil-free vacuum pump, or the oil vapor discharged to the outdoor.
Vacuum pump unit manufacturer: The working pressure of the vacuum pump should meet the requirements of vacuum and vacuum equipment working pressure. For example, the vacuum drying process requires a working vacuum of 10mm Hg, and the vacuum pump selected should have an ultimate vacuum of at least 2mm Hg, preferably up to 1mm Hg. Typically, the ultimate vacuum of the pump is selected to be one-half to one order of magnitude higher than the operating vacuum of the vacuum apparatus.
Vacuum pump unit manufacturer: Then consider the initial installation price and operation and maintenance cost of the vacuum pump, and choose a cost-effective vacuum pump according to the actual situation.