Application technology demi water storage in the Water utilities sector

Keep demi water clean

Avoid air contact


In particular during storage in the storage tank, the conductivity of deionised water increased during contact with air. Continuous inerting of the storage tank with an inert gas avoids the diffusion of carbon dioxide and other ion-forming gases into the water. For inerting, gaseous nitrogen is generally used.



  • Avoids oxygen enrichment in deionised water
  • Avoids carbon dioxide enrichment in deionised water
  • No increase in conductivity
  • No decrease in pH-value
  • No contamination with dust or volatile organic substances 


Messer offers custom-made solutions with engineering, nitrogen supply and hardware for tank inertisation.

revised_Customer process demi water storage in the Water utilities sector

Demi water storage

Storing of demineralsed water

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