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It is common knowledge that there is moisture in the air and, one way or another, it will make its way into the compressed air system.

Having too much liquid in compressed air systems can cause a number of problems such as: preventing lubrication, damage equipment and piping, and prevent proper readings. Even though there isn’t one solution to remove the moisture, by drying the air it will definitely improve the chances.

Always remember to drain the air compressor tank every time it is used, so rust will not build up and moisture can be avoided. Drain extension kits and automatic tank drains are available to make sure this is a regular occurrence. Also, a water trap and filter regulator system can be installed: the incoming air circulates and the water collects at the bottom of the trap and drains out.

These measure will remove the moisture droplets from the compressed air system, but will not tackle the problem of water vapour. This is where dryers come in; colder air holds less moisture.

One of the most efficient dryers for removing moisture is a refrigerated air dryer. By connecting it to the air compressor, it will cool the air to the pressure dew point (PDP) which is between 1.5˚C to 10˚C. The water will then separate from the air, the air is heated back to room temperature, and sent back through the air compressor.

Because some applications require a lower PDP, a desiccant air dryer is the common choice to remove the moisture. Desiccant beads, such as silica gel, activated alumina, and molecular sieve, are used to remove the water from the circulating air. Once the desired moisture content level is achieved, the air is moved through the to the compressor.

If you require more information or advice, or would like to enquire about our range of Dry Air Solutions, please contact us today.