FAQ

Why is compressed air wet?

Why is compressed air wet?

8 July 2022

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 water - water aerosols - water vapor

How are the contaminants formed?

As water is incompressible, the amount of moisture per m³ increases when air is compressed. The maximum amount of moisture per m³ air is however limited for a certain temperature. Condensation will thus be formed when air is compressed.

Compression Process

What problems can the contaminants cause?

  • Corrosion of pipe lines
  • Bad quality of the end product
  • Malfunctioning of controls
  • Build-up of ice
  • Cultivation of micro-organisms

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