SKINCARE ESSENTIALS FOR HOLI

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Vacuum pumps came around in the 1600s and since then have proved to be extremely helpful tools with a wide range of uses. This is a guide to understanding their functionality, types, and uses so you can make an efficient and appropriate purchase.

How do they work?

In layman terms, vacuum pumps are used to create a vacuum by pulling air or gas out of an area that is sealed. Once they remove gas or air from a section, they create a space in that section or what can be described as a ‘partial vacuum’. Their feature of being able to create a suction (like a vacuum cleaner) can be used to suck out liquids, gases, or air that needs to be pumped elsewhere. Vacuum Pumps can also be used to clean something out i.e. if liquid needs to be removed out of a sealed space for cleansing.
Inside the vacuum pump, there are two regions – one with high pressure and the other with low pressure. Their primary function is to remove liquid/gas from the high-pressure zone to the low-pressure zone while creating a vacuum in the middle (because the initial zone would be left empty).
Vaccuum pumps can be both dry and wet depending on how much exposure is allowed between the gas and water/oil.

Where are they used?

One of the most popular uses of these pumps lies in air conditioning systems. They are also used heavily in electric lamps and the semiconductor industry. Additionally, vacuum pumps can also be used to create medical equipment to perform medical procedures related to radiotherapy and other surgeries. The aviation industry benefits from vacuum pumps too, as they can be used in various ways to maintain and control pressures.

What do different kinds of vacuum pumps do?

When it comes to segregating them, there are three different kinds of vacuum pumps – Positive Displacement Vacuum Pumps, Kinetic Transfer Pumps, and Entrapment Pumps.

Positive Displacement Pumps are primarily of two kinds – reciprocating and rotary. Rotary Vane Vacuum Pumps (eg: Liquid Ring Pump) comprise of vanes that are mounted on a rotor. This set up is installed eccentrically inside a cylindrical housing and moves radially. Rotary pumps can be used both, dry or lubricated.

Reciprocating Pumps, on the other hand, consist of a piston inside a cylinder that goes back and forth to create suction, displace liquid, or discharge gas.

Kinetic Transfer Pumps are used when gas needs to be transferred consistently from inlet to outlet. They create a low-pressure area and transfer gas molecules using some form of a rotating element. These pumps work on the principle of momentum transfer and are often referred to as Momentum Transfer Pumps too.

Kinetic Transfer Pumps can primarily be of two types based on their functionalities – Mechanical Kinetic Pumps (eg: Turbolecular Pumps) and Propellant Pumps (Vapor Diffusion Pumps). While Turbomolecular Pumps use high speed rotations and blades to transfer momentum and energy to gas molecules, Vapor Diffusion Pumps use high velocity oil for the same purpose. As the descriptions suggest, Turbomolecular Pumps can be used dry whereas Vapor Diffusion Pumps require some form of lubrication (usually oil).

Entrapment Pumps such as Cryopumps can also be called Capture or Trapping Pumps because their main function is to use cryogenic technology to freeze or trap any gas inside. Likewise, Sputter Ion Pumps can charge gas molecules electrically to trap them inside by using a process called ionization.

How can PumpAir help?

At PumpAir, we offer a variety of vaccum pumps from some of the most trusted suppliers in the market. Feel free to reach out to our team of experts who can provide you with the right match of products so your business/factory functions smoothly without the hassle of constant maintenance or replacement.

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