Vacuum Pumps: Applications and How They Work

Vacuum pumps have been around since 1650, when the first one was invented by Otto Von Guericke. We thought it might be helpful to tell you a bit about how vacuum pumps work, some different types and their applications.

How Vacuum Pumps Work

Vacuum pumps remove gas from a sealed chamber. This creates a vacuum, in which the pressure is zero. Since gas, usually in the form of air, naturally flows from a place of higher pressure into a place of lower pressure, air is “sucked” into the chamber that has the vacuum.

The most common type of vacuum pump is a positive displacement pump. A positive displacement pump makes a partial vacuum by expanding a cavity. This creates more volume for the same amount of gas or air, creating a partial vacuum and lower air pressure. Air from outside flows into the cavity to equalise the air pressure. The cavity is then sealed off and exhausted into the atmosphere.

Another kind of vacuum pump is a momentum transfer pump. Momentum transfer pumps are also called molecular pumps. They use high speed rotating blades or high speed jets of dense fluids to move molecules out of the chamber.

For low vacuum applications, positive displacement pumps are the most efficient. When high vacuum is required, it is common to pair off positive displacement pumps with momentum transfer pumps.

Vacuum Pumps: Applications and How They Work

Common Applications of Vacuum Pumps

Vacuum pumps are used for a variety of applications, including: moulding plastic, producing vacuum tubes, electric lamps or CRT’s; electron microscopy, all medical processes that use suction, milking machines and other dairy applications, air conditioning, trash compactors, diesel and hybrid engines, hydraulic brakes, sewage systems, freeze drying, flight instruments and more.

Call Pump Solutions Australasia Today

We hope you have enjoyed this article. We not only import the best vacuum pumps from around the world, we import virtually every kind of pump in common use today. To learn more about vacuum pumps or to enquire about any of our imported pumps from around the world, call Pump Solutions Australasia today: 1300 7893 418.

Why You Will Love Speck Pumps

Speck Pumps, or Speck Pumpen in their native country of Germany, are world-renowned for their liquid ring vacuum pumps, but they also manufacture a variety of high quality pumps. Speck also manufactures submersible side channel pumps, heat transfer pumps, centrifugal pumps and boiler feed pumps.

Speck Pumps were founded in Roth, Germany, in 1909, by Daniel Speck. His five sons joined him and the firm would eventually go worldwide. At Pump Solutions Australasia, we are the proud representatives of Speck Pumps in Australia. We offer not only sales, but maintenance and repairs, too.

Speck Liquid Ring Vacuum Pumps

We offer a full menu of Speck liquid ring vacuum pumps. While there are many different varieties, they are usually configured one of two ways: long coupled, also called base plate, or close coupled.

Why You Will Love Speck PumpsSpeck liquid ring vacuum pumps are available in sizes starting at 0.12 kw-2.2m3/hr up to 45 kw-1600 m3/hr. Almost every Speck Pump is available in brass, cast iron, stainless steel or any combination of these metals. Speck liquid ring vacuum pumps are capable of creating vacuum levels as high as 33 mbar. They can transport liquids as high as 350 degrees centigrade at 100 m3/hr. The differential head can measure up to 100 m.

Speck pumps are available in a seamless magnetic drive configuration or with conventional mechanical seals. The smaller sized pumps are most often peripheral vane pumps, which offer low flow and high head capabilities. Conventional impeller pumps are used to service higher volumes, while heat transfer is usually handled by vertical spindle pumps. Speck side channel pumps are used for boiler feed and high head applications.

Call Pump Solutions Australasia Today

For Speck pumps or pumps from any high quality manufacturer for any purpose in any industry, call us at Pump Solutions Australasia. We are Australia’s premier importer of quality pumps from the world’s best manufacturers.

To learn more or to speak to the best customer service people in the business, call us today: 1300 793 418.