Friday, May 10, 2013

What is a Side Channel Blower and How is it Used

By Rich Carter


A reliable piece of equipment used to move gas and mixtures of gas and air through systems that must have consistent and flawless service is the side channel blower. This blower type typically runs with less noise than other vacuum pumps and compressors. In addition to that, they are generally made in single or double models with dual capabilities in pressure and vacuum style systems.

They provide a pulsation-free flow of gas and are suitable for high differential pressure situations. These blowers are used in a number of industries, like printing, paper making, plastic manufacture, food processing, beverage bottling, environmental technology, wood pressure treating, and pneumatic conveying. Process cooling, fume or heat extraction, aeration, air knife applications, and process drying are all thing that can be done with this type of blower.

The flow rates can range as high as 550 cubic meters an hour allowing side channel blower designs to be built for the consistent and steady flow of gas and gas-air mixtures or for filtering clean air over extended periods. They can withstand lengthy use at temperatures that are quite high. And example would be a unit that has performed steadily at 40 degrees Celsius.

Lightweight, solid materials that are corrosion resistant are the materials used for side channel blowers, and they are consistently quiet and efficient as well as maintenance free. They use a range of motor classes and that indicates that users should take care to match what they need with the output of the motor when they are ready to purchase the right model.

Typically a side channel blower will be made of die cast aluminum or aluminum alloy. They can be mounted either horizontally or vertically, and have internationally designed 50/60 Hz voltage motors. Some makers offer a three-phase version also, so one can find single, double, and triple phase models.

There is often little maintenance required on most models and they use kinetic energy for applying pressure to gas-air mixtures, or gas and then released through the side channel. Nearly all automation applications requiring large volumes air that is dry in conjunction with low vacuum and pressure levels can use side channel style blowers with good results.




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