Applications for Vacuum Pumps

Vacuum pumps are used for a wide range of applications in many different industries. Vacuum pumps remove gas from a sealed volume to leave a partial vacuum. Fluids then rush into the vacuum due to the difference in pressure gradients.

There are three kinds of vacuum pumps: positive displacement pumps, momentum transfer pumps and entrapment pumps. Most of the popular vacuum pumps are positive displacement pumps, so we will concentrate on them for this article.

Go Back Applications for Vacuum Pumps

Vacuum Pump Varieties Using Positive Displacement

Positive displacement pumps repeatedly expand a cavity, increasing its volume. Then part of the chamber is closed off and exhausted, pumping gas or fluids to their target areas. This is repeated over and over. Rotary vane pumps are the most common. Diaphragm pumps are also popular and have no oil contamination due to their design.

Liquid ring pumps have a high resistance to dust. Blower pumps and piston pumps are also somewhat common.

Applications

Vacuum pumps have numerous industrial and scientific applications. They are used for composite moulding, flight instruments, production of vacuum tubes and electric lamps, CRT’s, semiconductor processing, electron microscopy, photolithography, uranium enrichment, print presses, glass and stone cutting factories, cabinetry fabrication, and medical applications that require suction.

Medical applications include: radiopharmacy, radiosurgery and radiotherapy; mass spectrometers, instruments that analyse solid, gas, liquid, surface and bio materials.

Vacuum pumps are also used for decorative vacuum coatings on metal, glass and plastics, energy saving and durability of glass, ophthalmic coating, hard coatings for Formula One engine components, dairy equipment such as milking machines, vacuum impregnation of electric motor windings or wood, trash compactors, air conditioning service, sewage systems, vacuum engineering, fusion research and freeze drying.

To learn more or to speak to customer service, call Pump Solutions Australasia today: 1300 793 418.

Common Types and Applications of Vacuum Pumps

A vacuum pump is a pump that removes gas from a sealed volume, leaving behind a partial vacuum, allowing fluids to flow into the void. There are three categories of pumps that are classified as vacuum pumps, but only one of them is commonly used: the positive displacement pump.

Positive displacement pumps are efficient in situations requiring low vacuums. There are many common positive displacement pumps, but there are two that are used for most industrial applications: the diaphragm pump and the rotary vane pump.

Rotary Vane Pump

The rotary vane pump is the most common vacuum pump. It consists of a cavity with a rotor that has vanes attached to it. They can often be a circular rotor that is offset inside of a circular cavity. The vanes seal the edges of the cavity by sliding in and out of the rotor. This design is simple and doesn’t require a lot of power. It is reliable and economical.

Single Espresso Preparation

The rotary vane pump is a mainstay in the automotive and hospitality industries. The power steering, automatic transmission and supercharging pumps in your car or truck are rotary vane pumps. They are used in the restaurant industry mainly for the carbonation of soft drinks or for pumping air into espresso.

Diaphragm Pump

Diaphragm pumps are usually called double diaphragm pumps Our double diaphragm pumps are run on compressed air. They are versatile and can be used for pumping water, acids and slurries. They are used in many different industries such as food and beverage, processing, shipping and a host of others.

They can handle low pressure and high pressure, depending on the model.

Call Pump Solutions Australasia Today

At Pump Solutions Australasia, we service every industry imaginable. These include: hospitality, fire services, manufacturing, wastewater processing, mining, medical and coffee machine manufacturing.

We are direct importers and distributors of the best and most reliable brands in the world. To learn more or to enquire about a product, call us today: 1300 922 973.

Vacuum Pumps: the Basics

At Pump Solutions Australasia, we offer a full line of vacuum pumps which we import from elite global manufacturers to our Perth facility. We would like to provide you with a guide to the basics of vacuum pumps.

While invention of the first vacuum pump was credited to Otto von Guericke in 1650, their predecessors, known as suction pumps, were used in ancient Rome as early as 79 BC. Vacuum pumps move fluids by removing gas from a sealed chamber, creating a partial vacuum. Fluids then move into the chamber due to the disparity in pressure gradients.

Types of Vacuum Pumps

Vacuum pumps fit into three broad categories: positive displacement pumps, momentum transfer pumps and entrapment pumps. Different types of pumps have different strengths and weaknesses. This is why pumps must be chosen carefully to make sure the right pump is used for any job.

Basics of Vacuum Pumps

Positive Displacement Pumps

The most common and popular vacuum pumps are classified as positive displacement pumps. When the volume of a chamber is increased, it creates a partial vacuum. A chamber can be evacuated indefinitely without requiring infinite growth by a mechanism best illustrated by the basic water pump in a well.

When you push the pump handle down, the mechanism inside expands the chamber and water is pulled into the chamber due to the pressure gradient in the chamber being much less than that of the water. The water is exhausted through the outlet. When the handle is pulled up, the chamber is returned back to its smaller size. Then the process starts all over again.

All positive displacement pumps use variations of this principle. Their differences are in the mechanism used to expand the chamber, exhaust the liquid and return the chamber to its original volume.

Rotary Vane Pump

The rotary vane pump uses a rotor which rotates inside of a cavity. It is the most simple of vacuum pumps and is used for applications such as high pressure hydraulic pumps in automobiles, espresso coffee machines, carbonators for fizzy drinks, flight instruments, air conditioners and freeze dryers.

Our manufacturer of choice for rotary vane pumps is Fluid-o-Tech.

Diaphragm Pumps

Diaphragm pumps, including air operated double diaphragm (AODD) pumps, use one or more membranes to expand and contract a chamber. They are used predominantly in five industries: petrochemical, food & beverage, printing & ink, metal fabrication and construction. They can move a wide range of fluids, from simple liquids to thick sludge. One of their strong points is that there is no oil contamination.

Our manufacturer of choice for AODD pumps is Ran, whose principal headquarters are in Turkey.

Liquid Ring Vacuum Pumps

A liquid ring pump rotates an impeller inside of a cylindrical casing. Gas is drawn into the chamber through the inlet and through the discharge port. Their design makes them highly resistant to dust. They are used for power generation equipment, groundwater remediation, vapour extraction and food production, along with a host of applications in the petrochemical and pharmaceutical industries.

Our liquid ring vacuum pump manufacturer of choice is Speck Pumpen, headquartered in Germany.

Call Pump Solutions Australasia Today

At Pump Solutions Australasia, we have been providing not only vacuum pumps, but a wide range of other types of pumps from our Perth location since we opened in 1990. When we first opened, we were known as Pumps and Services Australia. It was founded by an engineer from Germany.

Pumps and Services Australia was instrumental in creating the vacuum pumping system for Geraldton Fish Markets and developed a tremendous track record in the Australian fishing industry.

By 2000, the Pumps and Services Australasia had expanded and diversified its offerings to include imported pumps from all over the world, with a large number of them from Germany and Italy. In 2008, Pumps and Services Australia became Pump Solutions Australasia, which we are today.

We have dedicated ourselves to providing the best customer service in the industry and backing it up by offering an incredibly wide range of pumps from all over the world.

To learn more or to enquire about a pump, call us today: 1300 793 418.

How to Choose Positive Displacement Vacuum Pumps By Type

Vacuum pumps are popular, but they can be confusing. There are three popular types of vacuum pumps: positive displacement, momentum transfer and entrapment. For most applications, however, positive displacement pumps are the most popular.

How to Choose Positive Displacement Vacuum Pumps

Positive Displacement Pumps: How They Work

Positive displacement pumps create a vacuum by expanding a cavity, allowing liquids or gases to flow in. The cavity is then sealed off from the chamber and gases and liquids are “exhausted” to their destination. The process is repeated indefinitely. A manual water pump is a perfect example. Rotary vane pumps, diaphragm pumps and liquid ring pumps all work on the principle of positive displacement.

Rotary Vane Pumps

High pressure hydraulic pumps are rotary vane pumps. These are used for power steering, automatic transmissions and superchargers in motor vehicles. Mid range pressure rotary vane pumps are used for food and beverage applications such as espresso machines and fountain soft drinks. Low pressure rotary vane pumps can be used for chemical vapour deposition systems and secondary air injection in the emission systems of motor vehicles.

Diaphragm Pumps

These are also known as AODD or air operated double diaphragm pumps. Air is pumped through one way valves as the chamber expands and contracts. They are used to make artificial hearts and as the air pumps on fish tank filters, but their main uses are industrial.

AODD pumps can be used for abrasive, aggressive or flammable chemical fluids for for high viscosity fluids. This can include pickling solutions, paints, slurries, ship cleaning, sewage, latex, enamels and solvents. AODD pumps also are used for dewatering in the mining industry.

Liquid Ring Pumps

Liquid ring pumps are used in the petrochemical, food manufacturing, pharmaceutical and health sectors. They are also used in power plants. They are also used in steam condenser evacuation systems, chemical reactors and evaporative coolers.

Call Pump Solutions Australasia Today

To learn more or to talk to someone on our customer service team, call us today: 1300 922 973.