Thursday, June 30, 2016

Super High Efficiency Coalescing Filters Improve Compressed Air and Gas System Performance

Coalescing filter cartridges and media for compressed air or gas systems
Super High Efficiency Coalescing Filters
Courtesy SPX Pneumatic Products
Compressed air systems are, for many industrial installations, the lifeblood energy source. Keeping the system free of unwanted particulates, oil, moisture, and other harmful contaminates is a key step in maintaining full operational capacity and conserving energy. Instruments, tools, and equipment that utilize the compressed air will perform better and longer with a cleaner air supply.

Coalescing filters are designed to remove liquid aerosols from compressed air or gas streams. Locating the filters upstream of air dryers will provide a processing step that intercepts liquid aerosols and brings them together (coalesce) into larger droplets that migrate to the bottom of the filter housing and are removed by draining. The purpose of locating the coalescing filter upstream of the air dryer is to remove liquids the dryer is unable to remove.

Some desirable criteria for coalescing filters include low penetration of oil and low saturated pressure drop. Increased pressure drop will require proportional increases in energy to maintain rated system air flow.

Along with moisture, inlet air can contain a range of particulates. Filter media that is designed and constructed to trap and retain larger amounts of particulate matter can be beneficial because the time between filter media changes is extended.

Effective compressed air system design requires the inclusion of properly configured and sized filtration components. You can learn more about coalescing filters with a review of the document included below. It includes some quantitative means of rating filter performance and efficiency. Share your compressed air or gas processing challenges with product specialists and combine your process knowledge with their product application expertise to develop the best solutions.