Closed loop systems are used to heat and cool HVAC, commercial and industrial systems by re-circulating the same water over and over again. There are a wide variety of system types, but the operational configuration that they typically have in common is isolation from the source of heating or cooling through a secondary heat exchanger (typically a boiler, cooling tower or chiller on the other side of the heat exchanger).
Closed loop systems are best tightly sealed with minimal water losses and makeup, and are often pressurized. But, systems with open-sumps or with high water losses are very common in certain industries, such as plastic injection molding. Specialized products are needed to control corrosion, scaling and biological fouling within the diversity of closed loop systems and makeup water qualities.
DuBois offers a comprehensive line of products to effectively treat a wide variety of closed loop systems:
Trade Expo / 04.12.18
Visit DuBois technical specialists December 4-5 in Winnipeg, MB at Booth #48. We will highlight our paint pretreatment, metalworking and waste water treatment solutions that will help you provide a farmer a high quality piece of equipment while maintaining environmental compliance.
Training / 12.02.19
This conference will bring stampers and die shops up to date on new lubricants for stamping and tool and die machining, and help them evaluate new formulations and select the right lubricant for the job. Rick Bulter, DuBois R&D Manager, will be part of the training team at this event sponsored by the MetalForming magazine with support by the Society of Tribologists and Lubrication Engineers.
Recent Events / 02.10.18
The Water Treatment Solutions (WTS) division of Triwater Holdings LLC. includes the Klenzoid, Eldon Water, Chemco Products and Nashville Chemical brands. DuBois recent acquisition will enhance our water treatment solutions to customers in the institutional, light industrial, food and beverage and natural resources markets.
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