A vacuum pump is a device or device that USES mechanical, physical, chemical substance or physical-chemical strategies to pump air out of a container to get a vacuum.Generally speaking, vacuum pump is a device that improves, generates and maintains vacuum in a closed space simply by various means.
Regarding to the operating basic principle of vacuum pump, vacuum pump can be divided in to 2 types, namely gas catch pump and gas transfer pump.It is widely used in metallurgy, chemical substance industry, food, electronic coating and other industries.
