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An Overview of Different Types of Vacuum Pumps

There are different types of vacuum pumps with different vacuum technologies, broadly either dry or wet types of pumps basically depending upon the exposure of gas to either oil or water during the process of pumping. The wet designed pumps use water or oil for the purpose of lubrication as well as sealing which often contaminates the pumped or swept gas. On the other hand, the dry vacuum pumps do not use fluid in the volume of pumping the gas and solely depend on tight clearances between the static and rotating parts of the vacuum pump, PTFE seals or dry polymer seals, or diaphragm in order to separate the mechanism of pumping from the swept gas. Get associated with Sasquash presses in order to find the appropriate and best vacuum pump for your purposes.

The dry pumps sometimes use oil or grease in the bearings or gears of the vacuum pump, but they are perfectly sealed from the swept gas. In addition to this, the dry pumps have minimum risks of contamination of the system as well as oil disposal in comparison to wet vacuum pump technology. Changing or converting wet vacuum technology to dry vacuum technology is not an easy task and you cannot do it whenever you wish. Instead, if you have a wet vacuum technology-based vacuum pump, make sure that the piping and chambers do not get contaminated by regularly cleaning or replacing them failing to which your vacuum pump may have the risk of gas contamination in the course of your operation.

There are typically 10 to 11 different types of vacuum pumps of primary and secondary categories both from dry and wet categories which are commonly and popularly used and available in the market. The most common and popular vacuum pumps in the primary or backing vacuum pumps category include oil-sealed rotary vane pump with wet and positive displacement technology, the liquid ring vacuum pump with wet and positive displacement technology, the diaphragm vacuum pump with dry and positive displacement technology, the scroll vacuum pump with dry and positive displacement technology, the booster vacuum pump or roots vacuum pump with dry and positive displacement technology, the claw vacuum pump with dry and positive displacement technology, the screw vacuum pump with dry and positive displacement technology.

The popular secondary category vacuum pumps include oil-sealed rotary vane vacuum pumps with wet and positive displacement technology, the liquid ring pump with wet and positive displacement technology, the diaphragm pump with dry and positive displacement technology, the scroll pump with dry and positive displacement technology. Similarly, the booster pump category includes the roots pump with dry and positive displacement technology, the claw pump with dry and positive displacement technology, the screw pump with dry and positive displacement technology.  

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