Components of the Compressed Air System

The important components of the compressed air system are:

  1. Inlet Filter: Removes particles from the air entering the compressor.

  2. Compressor: Compresses air to a smaller volume, increasing the pressure.

  3. Motor: Drives the compressor.

  4. Compressor Controller: Directs the compressor’s output. It may be microprocessor, electromechanical or pneumatically based. Advanced controllers include machine protection and information management.

  5. Aftercooler: Compression leaves the air hot and wet. The aftercooler lowers the temperature of the air, thus condensing and removing the water.

  6. Separator: Removes liquids from the compressed air. These are generally installed in compressor after the aftercooler.

  7. Receiver: Stores a large reserve of compressed air to maintain a smooth flow to the plant.

  8. Air line Filter: Removes solids and liquids from the compressed air stream. Filters can be placed throughout the system.

  9. Dryer: Helps to eliminate any remaining moisture in the compressed air by using either a refrigerated condenser or a desiccant. Refrigerated condensers cool the air to condense water vapor into a liquid that is then drained from the system. Desiccants are powders or gels that remove water by absorbing it.

  10. Condensate Trap: Collects and discharges liquid that condenses out of the air stream. Integral part of after coolers, dryers and separators

  11. Distribution Piping: Links the components. It distributes the air from a main header to branch lines and sub headers to drop points connected to individual tools.

  12. Pressure regulator: Controls air pressure and flow at individual points of use.

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