What Is a Glycol Chiller System? Applications, Benefits & Custom Options

industrial glycol chiller, glycol chiller system

Glycol chiller systems are critical in industries where precise, low-temperature cooling is required—especially in food, beverage, and chemical processing. At Delta T Systems, our industrial glycol chillers are engineered to deliver reliable, energy-efficient cooling customized to your specific needs.

Whether you’re managing fermentation tanks at a brewery or cooling jacketed vessels in a pharmaceutical lab, our glycol systems are built for flexibility, efficiency, and performance.

What Is a Glycol Chiller?

A glycol chiller is a refrigeration system that uses a glycol-water mixture to lower and regulate temperatures in industrial equipment. This mixture flows through a closed loop to remove heat from a process or product. Glycol prevents freezing, offers corrosion protection, and ensures consistent temperature control—especially in low-temperature applications.

How is Glycol Used in Industrial Processes?

Inhibited glycol is the main type of glycol used for industrial processes, especially in the food industry. The use of inhibited glycol allows for two main benefits:

  1. Antifreeze
  2. Corrosion prevention

Glycol as Antifreeze

Glycol’s most common use in a process chilling system is as an antifreeze, which allows chiller system operation below the freezing point of water at 32°F (0°C). The addition of glycol to the process fluid lowers the freezing point. The lower operating temperature also results in a faster heat transfer process.

These glycol-circulating systems are mainly used for temperature control of jacketed vessels, tanks, mixers, reactors and blenders. Delta T Systems temperature control equipment is connected to these systems and provides exact heating and/or cooling throughout the industrial process.

Common Food and Beverage Sectors that use Glycol as Antifreeze in Temperature Control Systems Include:

  • Breweries
  • Wineries
  • Cider mills
  • Distilleries

Glycol Chillers are Commonly Used for:

  • Fermentation process control
  • Cold storage
  • Cooling vessels
  • Prepackaging
  • Wort cooling

Glycol for Corrosion Prevention

Glycol used in process chiller systems commonly contains inhibitors to protect against rust and corrosion, as well as pH buffers and biocide to protect against scale formation and bacterial growth. When properly used with inhibitors glycol can prevent costly corrosion in heat transfer systems. This can also help extend the life of process chiller system components.

Glycol Process Chiller

Making sure your process temperature control unit is circulating the proper fluid for your needs is just part of maximizing the overall performance and quality of the temperature control of your industrial process.

Also consider how the chiller will be used. Our glycol chiller systems are available in all sizes, from smaller portable systems to large 4-circuit packaged chillers.

We also offer modular chillers with up to 5 packaged chillers in a series. For larger, plant-wide glycol systems like these, a Pump Tank can serve as the centralized reservoir and pumping source, providing a significant store of cooling fluid and simplifying distribution across multiple chillers.

Portable Glycol Chiller

Portable glycol chillers are best used to cool one or two machines. These smaller units, mounted on casters, are favored for flexibility. They can roll from application to application, or be dedicated to cool a single process or machine as part of a manufacturing cell. All Delta T Systems chillers feature energy-saving variable-speed compressors that operate between 10% and 100% of rated capacity. Our portable chillers are available as air-cooled or water-cooled units, and are among the most efficient industrial process chillers on the market.

Delta T Systems’ Packaged Glycol Chiller

Our packaged glycol chillers are available as 40, 50, or 60-ton systems. These chillers also have energy-saving variable-speed compressors and condenser fans for higher efficiency, reliability, and quieter operation. These units offer 50% energy savings over conventional hot-gas bypass systems. The energy savings mean they can pay for themselves in less than 3 years. As with all our units, they are available with a glycol cooling solution engineered to meet your specific needs.

Whether you need a compact, portable glycol chiller or a custom-engineered multi-circuit system, Delta T Systems has the solution. Speak with our team today to request a quote or consultation.