DGS Membranski sistem vodene deaeracije

Detailed View

  • Capacity 10- 1500 hl/h
  • Residual oxygen down to 1 ppb (custom-made)
  • CO2-(N2-) consumption 5-15 (2,5-7,5) Nl per 1 hl deaerated water
  • Operating temperatures 0°C - +45°C
  • CIP max. 85°C
  • Operating pressures 0 - 8 bar
  • Nominal diameters DN 25- DN 150, 1"-6"
  • Materials AISI 304(1.4301) / Polypropylene others on request



The DGS is a modular water de-aeration system based on membrane contactors. The skit is designed to grant low running costs compared to other methods based on high efficiency of the membrane contactors. Very low residual oxygen values are achieved with small energy and purge gas consumption (CO2 or N2).

Easy upgrading of capacity by adding contactors, full automatic and maintenance free operation, short run up time, variable capacity range and a small foot print are important advantages achieved due to the membrane contactors.


The DGS system is a modularly constructed water de-aeration skit. Due to high efficient contactors, so called hydrophobe hollow fibre membranes a fast exchange of gas out of the water is possible. The water is flowing along the outer side of the hollow fiber by the cross-flow principle. Through the inner side of the hollow fibre purge gas (CO2 or N2) is flowing at low pressure and sucked out by a vacuum pump. Due to this, the partial pressure of the oxygen inside the hollow fibre is decreased almost to zero. The partial pressure difference between both sides forces the oxygen to percolate. The membrane material is hydro-phobe Polypropylene which can be passed only by gases. Thousands of hollow fibres bound together form a contactor. The high surface area compared to the small volume are the main reason for the high efficiency and low running costs. Depending on required residual oxygen values and max. capacity the number of contactors is calculated and respective arranged. An optional remote access service kit allows software updating and trouble shooting within a few hours.