Real pump refers to the use of mechanical, physical, chemical or physical chemistry to obtain a vacuum device or equipment for the pumping container.Popularly speaking, the vacuum pump is a device that improves, generates, and maintains a vacuum in a certain closed space in various methods.
What kind of vacuum pump is generally divided into
The vacuum pump can be divided into three categories according to the scope of the use and gas pump:
If you want lower pressure, you need to use the oil pump. Good oil pumps can be drawn below 133.3Pa (1mmHg).
What do you need to pay attention to when you use the vacuum pump
Between the distillation system and the vacuum pump, an absorption device must be installed.
Before distillation, the steam of organic solvents in the system must be completely removed with a pump.
If the pump can be pumped with a pump, try to use the pump as much as possible. If the distillation substance contains volatile substances, you can use the water pump to reduce the pressure and then use the oil pump.
The decompression system must keep it dense and not omitted. The size and tunnels of all rubber plugs must be appropriate. The rubber tube must be used in vacuum rubber tubes.Apply glass with vacuum oil.

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