What does the filter and moisture separator assembly (FMSA) do in an air compressor?

The filter and moisture separator assembly (FMSA) plays a crucial role in ensuring the quality of the compressed air produced by the air compressor. The primary function of the FMSA is to effectively remove moisture from the compressed air. Moisture can lead to various issues, including corrosion, equipment damage, and reduced efficiency in pneumatic systems. By preventing moisture build-up, the FMSA helps maintain the integrity of the air supply and enhances the overall reliability and longevity of the air compressor and downstream equipment.

In the context of other options: draining excess oil relates to different components designed for lubrication management, indicating pressure levels is a function typically associated with pressure gauges, and allowing air to escape the system does not align with the purpose of maintaining pressure and quality in the compressed air system. Therefore, the FMSA's dedicated role in moisture removal emphasizes its importance in air compressor operation and maintenance.