Efficient, reliable and safe system water treatment 

Glycol is regularly used as frost protection for water-lined systems. Not only in cold countries, where temperatures can drop well below freezing at night, but also in local refrigeration/freezing systems, says Mario van Gorsel, director of KOREX Benelux. "A big advantage of glycol is its frost-protective nature. A disadvantage is the large amount of dissolved oxygen, which lurks corrosion, fouling and yield losses. Our AIR-SEP® provides an effective solution for this." This pressure maintenance station consists of an expansion tank with inflow valve, vent valve, refill valve and pressure maintenance pump, which effectively eliminates air bubbles from the piping system. Also in glycol systems. "An additional Glycol Make-up Package (GMP) automatically provides the required glycol supply, maintaining the minimum system pressure level at all times."

AIR-SEP® pressure maintenance stations uniquely take care of pressure maintenance and vacuum degassing, expansion, dirt collection and refilling (replenishment) of water-lined systems. Also in the case of refrigeration/freezer systems. "If one opts for a glycol system, the AIR-SEP® is not connected to the drinking water network for replenishment, but to the GMP," says Van Gorsel. "Thanks to the combined system, almost no oxygen transfer takes place in the system. Moreover, the quality of the system content is greatly improved, the pH value remains optimal and corrosion, contamination and yield losses are reduced to a minimum." 

KOREX Benelux's GMP glycol vessel is available in four capacity sizes, with a glycol capacity of 22.7, 68.1, 208 or 379 liters. "With these variants, we offer a suitable glycol-based solution for all common refrigeration/freezing installations," said Van Gorsel. "If desired, the GMP can also be connected directly to an underfloor heating system."

The Glycol Make-up Package offers several advantages for installers and end users. In case of system leaks, damage is limited to the contents of one glycol vessel. Thus, major flooding is not an issue. In addition, the GMP eliminates the need for a backflow prevention system. The glycol content protects the system from freezing and guarantees a constant (minimum) system pressure level, Van Gorsel summarizes. "The glycol fluid is stored in the vessel, serviced manually and isolated from the building's potable water lines, so there is no chance of cross-contamination in the potable water supply. With this, efficiency, comfort and safety go perfectly hand in hand."

About KOREX Benelux

KOREX Benelux specializes in the sale, supply and maintenance of devices and fittings in the field of water and/or coolant treatment in Closed Circulating Pressure (GCD) installations. "We offer technical advice and support and make calculations and connection sketches for cost-saving, energy- and CO₂-reducing installations, resulting in improved capacity of heating, cooling and freezing systems, closed source systems and solar energy systems."