Compressed Air Quality

Power, instrumentation, process and breathing air

The quality of compressed air is often characterized as

  • Power air - used for tools in plant and workshops
  • Instrument air - used in pneumatic process control systems, laboratories, paint spraying and climate control systems
  • Process air - used in production processes, pharmaceutical and food processes
  • Breathing air - used in hospital air systems, diving, cleaning of breathing equipment

Power Air

Power air quality is used for pneumatic tools in plant and workshops.

  • Filtered separator is normally required
  • Refrigerated compressed air dryer and particulate filter may be required where sir tools, sand blasting and pneumatic control components are used.

Instrument Air

Instrument air quality is used in pneumatic process control systems, laboratories, powder coating, paint spraying, climate control systems, packing machines etc.

  • Refrigerated compressed air dryer and oil removal filter required

Process Air

Process air quality is used in production processes, chemical, pharmaceutical and food processes and laboratories.

  • Refrigerated compressed air dryer, oil removal filter and oil vapor absorber may be required
  • For outdoor lines in cold climate low dew point desiccant dryer and particulate filter may be required

Breathing Air

Breath air quality is used in hospital air systems, diving, cleaning of breathing equipment.

  • aftercooler, coarse pre-filter, and auto draining water trap required
  • suitable in-line sorbent beds and filters required

Related Topics

  • Gas and Compressed Air - Gas properties, capacities of pipelines, sizing of relief valves - air, LNG, LPG and more

Related Documents

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