As the name implies, a compressed air dryer is a filter system which works to remove water vapour from compressed air. In air compressors, water formation is unavoidable as the process of compressing air raises the temperature, causing water vapour to form.
Excessive water in compressed air, in either liquid or vapour form, can cause a variety of operational problems for users of compressed air. This water must be removed as it can cause several ill effects, such as:
- Erosion in the compressor tank and piping.
- Strip essential lubricating oils from pneumatic tools.
- Mix with the lubricant used in cylinders.
- Cause damage to pneumatic machinery, air motors or valves.
As such, it’s crucial that you select the correct type of air dryer for your specific requirements. Your compressed air dryer as selection will largely depend on the precise air quality requirements and the moisture tolerance level of the machinery.
For example, most air compressors in the manufacturing or industrial productions will use a refrigerated air dryer, while machinery used in industries such as medicine or spray painting will use desiccant dryers ensure the air is clinically dry and clean.