Complete Solutions

Guldager apply many unique technologies and processes. In combination the individual elements such as softening, filtration, corrosion protection and bacteria control contribute to unique and complete water treatment solutions. Each element providing its individual features, but still adapted to each other to optimise the effect of several elements working together. Our water treatment systems are customized and constructed with the elements required for the exact purpose. Our concepts are thoroughly tested, environment friendly and very cost efficient.

We recognize the size of the investment involved. Therefore we recommend our complete solution providing a commercial and technical solution, including: equipment supply, installation and system maintenance. Guldager’s from source-to-consumer solution includes all steps in the process of producing pure water for drinking water, boiler water, process water etc.

Let us find the optimum solution – involve us from the beginning.



Guldager’s drinking water solutions are customized units. Available with all necessary pre- and post treatment observing the most stringent requirements to water quality.



Guldager offers a number of products and services for prevention and controlling Legionella. We offer solutions for immediate elimination or continuous prevention of Legionella



Guldager provides comprehensive cooling water treatment solutions including both open and closed systems and for sea and fresh water intake.



Guldager holds extensive experience in industrial water treatment. With our customized solutions, we help our customers with their challenges with water.


New catalyst factory at Haldor Topsøe

During winter/spring 2014 EuRefa has delivered cooling
plants and towers for Haldor Topsoe‘s new catalyst factory
P6 in Frederikssund, Denmark.
The plant consists among other things of:

  • 1 pc. 2,6 MW GEA Polacel cooling tower for free
    cooling of 40/27° cooling systems.
  • 1 pc. 700 kW GEA Grassoammonia cooling plant
    with respective 800 kW GEA Polacel cooling tower.
  • 10 m3
    buffer tank, pump and pipe system in stainless
  • 600 kW GEA EcoFlex free cooling exchanger.
  • 2 pcs. Guldager water treatment plants for cooling


Guldager is a Danish family owned company. The company was founded in 1946 and is today a modern company, represented internationally through subsidiaries, agents and dealers. We apply decades of experience, up-to-date knowhow and cutting-edge technology to meet the many needs of our customers.


Guldager A/S is an international company committed to its customers. We are used to provide service and support to our customers all over the world. Please feel free to contact any member of the Guldager team, we are looking forward to hearing from you.

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Copyright Guldager A/S 2013
GULDAGER A/S HEJREVANG 1-5 DK-3450 ALLERØD +45 48 13 44 00