Air naturally contains (barely noticeable) moisture. By compressing it, that moisture gets released. In the long run, that might damage the piping of your air compressor or the air itself. Especially in sectors like pharmaceuticals and food processing, but also the automotive industry, it’s important to have clean and dry air. Otherwise you run the risk of contamination or oxidation.
A water separator (or filter dryer) on your air compressor is designed to remove all the moisture ( and other possible contaminants) from the compressed air. That way you’re sure you’ll have a clean and dry end-product. These water separator work by a centrifugal or coalescing principle. The first one works through a rotary motion that forces the water particles out of the compressed air. The second one uses a very fine filter: all the liquid comes together in droplets that get drained away eventually.
The specific process of compressing the air produces water vapour. This moisture might be damaging on your compressor systems as well as the air itself or the process the air will be used in. In lots of sectors it’s impossible to use contaminated or moist air.
Another option to eradicate moisture particles or contaminants are air dryers. There are four different types:
Want to get to know more about air dryers? We've written an article about it!
In many applications, having dry compressed air is essential. It is paramount to make use of the right air drying system for your air compressor. In this article we’ll discuss how to find out which air drying system is ideal for your application, and how to set it up.