Pneumatics Tools

What Are The Types Of Vacuum Pumps?   

jauhar khan
@jauhar123 | Posted 21 Aug. 2019

In simple terms, a vacuum pump is equipment which creates a vacuum inside a sealed container. It is firstly used in the laboratory. Various types of this instrument came into existence with an exploration of different features associated with the analyzation of this technology. Innovative research in science and technology has included the process in specific industrial applications like automobiles, sewage systems, industrial and pharmaceutical processes etc. Another type of vacuum system is Festo Vacuum Generator

Types Of Vacuum Pumps

Positive Displacement Vacuum Pumps:

These vacuum pumps work on a mechanism that expands a cavity, allowing the gases to flow in from an outside chamber. This cavity is then sealed off, and gas is released into the atmosphere. These pumps are best used to create low vacuums. A partial vacuum is generated by increasing the volume of the container. To continue evacuating a chamber without needing tremendous growth, a compartment of the vacuum can be closed off, exhausted, and expanded repeatedly again.

Momentum Transfer Vacuum Pumps:

Also known as molecular pumps, momentum transfer vacuum pumps work by using high-speed jets of dense fluid to move gas molecules out of the chamber before sealing it off. These pumps are commonly used to attain high vacuums in which case they frequently work with various displacement pumps. 

Entrapment Vacuum Pumps:
These vacuum pumps capture gas molecules either in a solid state or in an absorbed state using cold temperatures. The pumps are mostly used in ultrahigh vacuums. Getters, cryopumps, And ion pumps also fall under entrapment vacuum pumps.