10 March 2020
Since the atmospheric air contains different amounts of moisture depending on the temperature - higher air temperatures can absorb more water, while air cannot absorb as much water at lower temperatures. This also applies to compressed air systems, and if our body is an indication of how excess water and moisture can affect performance, imagine how this affects a compressed air system.
Untreated compressed air that contains solid liquid and gaseous contaminants poses a significant risk as it can damage your air system and your end product. Moisture, one of the main components of untreated air, can cause the following problems:
To avoid malfunctions and interruptions due to water and moisture in the pipes, the compressed air must therefore be dried wirh aftercoolers and drying devices
Before you look at the different types of dryers available, consider what to know when deciding which dryer is best for your specific needs:
As a rule of thumb, a refrigerant dryer is suitable for most industrial applications because it lowers the pressure dew point (commonly referred to as PDP, i.e. the point at which condensation forms) of your compressed air to +3°C. That means you don't have to worry about condensation unless your piping is exposed to freezing temperatures.
However, some applications require air with a much lower dew point. In this case, you need to take a look at the dry air drying technology, with which you can reach a dew point of up to -70°C. We recommend that you refer to the ISO 8573-1:2010 standard when specifying new air compressor systems and when reviewing your air system, but if you need ideas, our air experts will be happy to answer your questions at any time.
Discover the full range of Atlas Copco compressed air dryers and their applications.
Would you like to know how an air dryer works or what methods of air drying air there? Download our compressed air dryer white paper to learn more.