Demiflow demineralisers

Our Demiflow Demineraliser system (HDF) delivers fully demineralised water of the highest quality in seconds. The HDF system is installed directly on the main water supply, but it can also be used as post-treatment for reverse osmosis water (polishing).   

The basic set contains a pressure-resistant (max 6 bar) and replaceable demi-cartridge, resin filling, the distributor head and a connection set.

Mixed bed resin   

Our Demiflow demineraliser system contains a mixed bed resin that is based on the ion-exchange principle. All in the water soluble hardness scalars, salts, acids and alkaline will be absorbed by the resin, until the resin becomes saturated. At this point, the resin needs to be regenerated or changed.

EC measuring

The conductivity of the demi-water indicates the saturation of the mixed bed resin. This prevents the user from using hard water without noticing.

Continuous production

Choose our Duplex HDF system whenever you require a continuous production of demi-water. This system includes two filled Demiflow cartridges connected to a conductivity meter. It allows you to replace the cartridges separately in order to make sure production flow is not interrupted.

Part number Max. production* Resin volume Period capacity by 1 meq/ltr Operating weight
  litre/hour litre litre kg
HDF-8 175 8 1900 14
HDF-11 300 11 2600 18
HDF-25 500 25 6600 37
HDF-40 900 40 9800 56
HDF-75 1250 75 18800 101
HDF-103 1500 103 25480 140

*At 2 bar pressure drop

  • PDS Demiflow demineralisers

    Download our datasheet (PDF - 2,7 MB)


Why use Demiflow demineralisers

  • Water quality < 1 μS/cm
  • Fast production
  • Durable cartridge