Classification of Laboratory Vacuum Pumps

The function of the vacuum pumps is to remove gas molecules from the vacuum chamber and reduce the gas pressure in the vacuum chamber to achieve the required vacuum.

In the laboratory, the vacuum pump is used more and more, and most laboratory equipment is equipped with a vacuum pump. The vacuum pump can be used with other instruments. For example, the equipment often used is vacuum filtration, microbial detection, waste liquid extraction, rotary evaporator, vacuum drying oven, and freeze dryer. The requirements for vacuum pumps vary from instrument to equipment. Hawach will introduce you to the types of vacuum pump commonly used in the laboratory.

The laboratory vacuum pump is generally classified into the dry vacuum pump and non-dry vacuum pump.

Dry vacuum pump, also known as the oil-free vacuum pump, rely on the machine’s own components to achieve the required vacuum, which is non-polluting and maintenance-free. The most used in the laboratory are oil-free piston vacuum pump for microbiology laboratories and corrosion-resistant diaphragm vacuum pumps for chemical laboratories.

The non-dry vacuum pump is classified into an oil vacuum pump and water circulation vacuum pump. Common to both vacuum pump is the need to achieve the desired degree of vacuum with other materials such as water and oil.