Vacuum Small Vacuum Pump pressure pump is a device or device that USES mechanical, physical, substance or physical-chemical ways of pump air out of a container to get a vacuum.In most cases, vacuum pump is a device that improves, generates and maintains vacuum in a closed space by just various means.
Regarding to the working basic principle of vacuum pump, vacuum pump can be divided in to two types, namely gas catch pump and gas transfer pump.It is widely used in 
metallurgy, chemical substance industry, food, electronic coating and additional industries.