All atmospheric air contains water vapour. When air is compressed the water concentration increases. 

Compressed air needs some form of treatment to achieve the desired air quality. Only compressed air that is treated totally clean and dry will ensure maximum savings.

A Refrigeration Air Dryer is the most cost-effective way to achieve DRY air.

In addition to water, compressed air contains dirt, wear particles, bacteria and even degraded oil which all mixed together forms an unwanted abrasive sludge known as condensate. In most installations the Receiver is where most condensate is found. Therefore, the receiver needs to be fitted with a Condensate Drain (preferrably automatic) to remove the condensate and carry-over solids such as dust, scale, carbon etc. Condensate can also be removed throughout the distribution pipework with the use of Drip Leg Drains, both automatic and manual.

A quality compressed air system requires Filtration to create the different air quality levels required by different applications. Air filters can be located throughout the system and the number and type of filters will vary according the quality of air required.

For all industrial users of compressed air, the responsible disposal of oil contaminated condensate is now closely controlled by legislation, with heavy penalties for non-compliance. This rigidly enforced legislation exists to protect the environment against contamination.

Oil/Water Separators are self contained units designed to be installed as part of the compressed air system and effectively reduce the oil concentration to permitted levels. This allows the larger volume, up to 99.9% of the total condensate to be safely discharged, leaving only a small amount of oil to be disposed of legitimately and economically.