Why is compressed air contaminated?

Untreated compressed air always contains contaminants because of the nature of the gas and how it is produced. The need for air treatment basically results from 3 characteristics of compressed air.

Contaminants

  • Liquid oil - oil aerosols - oil vapor
  • Dirt - microorganisms - pipescale
  • Trace gases: carbon monoxide, sulfur dioxide,
    nitrous oxide

How are the contaminants formed?

Added by the compressor installation through oil lubricated compressors (oil), adsorption dryers and activated carbon filters (dirt), piping network and vessels (pipescale).

Trash in, trash out: oil vapors from car exhausts and industrial processes, atmospheric dirt and micro-organisms get sucked in by the compressor. As with water, their concentration – and thus importance – increases significantly after compression.
Why is compressed air contaminated?

What problems can the contaminants cause?

  • Damaged production equipment, leading to
    inefficiencies and increased costs
  • Air pollution, creating unhealthy work environments
  • Pollution of the condensate

The Pneumatech solution:

  • Coalescing filters for oil aerosols / particles
  • Oil vapor filters
  • Dust filters



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