How Compressed Air Filters Work

• Air from the compressor tank flows down the line and enters the cap of the filter.
• The flow of air is directed down into the bowl by the cap design.
• The compressed air is then forced to flow in a tight, cyclonic path within the bowl.
• Liquid water and debris that is typically in the air stream is thrown to the outside of the bowl by that cyclonic flow of the air.

The crud drains down into the bottom of the bowl past a barrier to help keep it separate from the air stream.

Auto drains help empty the filter bowl regularly, other wise the bowls do need to be manually drained regularly to prevent water and crud from being forced back into the air stream.

Since water vapor in the compressed air stream can condense out anywhere along the flow path of the air, it is important to have a compressed air filter installed before each compressed-air-using piece of equipment or air tool to remove the water that condenses in the lines between the source and the air tool.

This article comes from uac website edit released