Vacuum pump refers to the device or equipment that uses mechanical, physical, chemical or physical chemical methods to extract air from the evacuated container to obtain vacuum. Generally speaking, vacuum pump is a device to improve, generate and maintain vacuum in a closed space by various methods.It can also provide negative pressure condition for the processes of evaporation, distillation, crystallization, drying, sublimation, pressure-reducing filtration and so on, particularly be suitable for labs.
