Oil free vacuum pump is a kind of mechanical vacuum pump which can run without any oil lubrication. The oil-free vacuum pump can only be used with the cooperation of the front stage pump. It has a large pumping speed in a wide pressure range and is not sensitive to dust and water vapor in the extracted gas. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
The advantages and disadvantages of oil-free vacuum pump have the advantages of simple structure, easy operation, convenient maintenance and no environmental pollution. The oil-free vacuum pump has good durability. It is a vacuum pump, compression and dual-purpose vacuum pump. It is a basic equipment with a wide range of applications to obtain vacuum.
Compared with oil pump, oil-free vacuum pump has low vacuum degree and small pumping capacity, but it is small in size, easy to install, easy to maintain, convenient to move, no oil fume and no pollution to the environment, especially in the laboratory with high requirements. It is also one of the most common equipment in the laboratory.
Therefore, when purchasing the oil-free vacuum pump, the vacuum degree required to work must be determined first. If the demand is high, the vacuum pump selected should be higher than the required vacuum degree. Otherwise, the vacuum pump can not meet the requirements of vacuum pumping, and the working requirements will not be met. Secondly, the pumping rate of oil-free vacuum pump should be slightly greater than the required pumping rate, so as to better meet the needs. Finally, see whether the extracted gas is corrosive. Corrosive gas will corrode the pump, so special materials must be used to meet the demand.
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