Cooling Water Treatment

Contact Information

Global Nalco Locations
Local Sales Offices


Nalco Water
1601 W. Diehl Road
Naperville, IL 60563-1198
630-305-1000  Phone

Nalco Champion
11177 S. Stadium Drive
Sugar Land, TX 77478.
281-632-6500  Phone


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Closed Loop Cooling Applications

There are three types of cooling water systems: once-through, open recirculating, and closed recirculating or closed loops. Closed recirculating systems use heat exchangers and circulate water in a closed loop with negligible evaporation to the atmosphere. Heat is transferred to the closed cooling water loop by heat exchange equipment and removed from the closed system loop by a second exchange of heat.

Nalco offers a full line of products for closed loop cooling applications.  Many products in our TRAC line are based on patented all-organic technology, avoiding molybdate and nitrite chemistries that have been subject to regulatory restrictions in some areas. 

With 3D TRASAR technology control, your system can be monitored for optimal, cost-effective performance.