Drema Waterbehandeling B.V.

- Model NFSS Series - Neutralising Filter


The NFSS neutralising filter uses EWT compound as filter material. EWT compound consists of 99.1% calcium carbonate. Due to its micro crystal structure, EWT compound is superior to normal calcium containing materials. The filter house of the NFSS Neutralising filter is made from Stainless Steel 316L, which eliminates the corrosion problem. The EWT compound is active for pH control, even after the removal of high concentrations of iron and manganese. The NFSS Neutralising Filter is normally integrated in the production line, between the Reverse Osmosis Units or Evaporators and the fresh water tank. The pH of the fresh water flow out of the Reverse Osmosis Unit or Evaporator is normally less than neutral pH 7, often pH 5.5 to 6.5. The NFSS Neutralising filter neutralises the water to approximately pH 7. With a neutral pH the produced fresh water is not aggressive and will no longer deteriorate your galvanized and copper piping.

  • Stainless steel filter housing, to eliminate the problems caused by corrosion
  • Sight glass
  • Air outlet valve
  • Colour of your choice without extra costs (standard colour light blue)

  • Simple to operate
  • High reliability of the components
  • Simple maintenance

Drema Waterbehandeling B.V. can supply NFSS Neutralising Filters; in a range from 750 to 300.000 litres of potable water a day.

The standard NFSS Neutralising Filters are given in the table below.

We can also produce a tailor-made Neutralising Filter to your own specifications.

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