Leading Glycol Chiller Manufacturers

A glycol chiller relies on antifreeze glycol to create extremely low temperatures far below water’s freezing point. Glycol is an organic compound that is part of the alcohol family; it is known to have a sweet taste, but it is toxic. It is generally mixed with a fluorescent dye and is clear and oily. Glycol is a consistent, reliable, and stable solution capable of accurately maintaining low temperatures without freezing. Read More…

Glycol Chillers Glycol chillers are refrigeration systems which circulate an anti-freeze and water solution to help cool a variety of equipment and processes. These chillers use an anti-freeze called glycol from which they receive their name. Since glycol is a food grade anti-freeze, these types of chillers are most frequently used in the food and beverage industry.

Our customers know they can trust us for the ultimate in quality, affordability, and flexibility. If you want a fully customized solution for your chillers, we can help! We work hard to create the best solution for each of our customers, because we know that if you are not happy, we are not happy! You can learn more about our services by visiting our website or giving us a call today!

Cold Shot Chillers $$$

Industry leading, eco- friendly technology from Delta T Systems is setting the pace with energy efficient portable or packaged chiller systems and temperature control units. Our expansive standard product line has been successfully applied in a broad variety of industries for over 30 years. And for applications that require unique features or functionality, our custom design team has the know-how ...

Delta T Systems, Inc. $$$

Since 1969, Thermal Care has been a leading manufacturer of portable and central chillers in air cooled, water cooled, and remote condenser models. As an ISO 9001 certified manufacturer, Thermal Care provides heat transfer equipment for over 50 industries and specializes in meeting the specific needs of our customers by offering both standard and custom designed industrial process cooling...

Thermal Care, Inc. $$$

Dimplex Thermal Solutions, based in Kalamazoo, Mich., and home of Koolant Koolers, has been manufacturing water, air, and glycol chillers since 1952. Since that time Dimplex has expanded it’s product offering to include industrial cooling for: Machine Tooling, Food Processing and Packaging, Medical Diagnostic Imaging, Laser Cutting, Manufacturing Processes and more. Dimplex is known for their...

Dimplex Thermal Solutions $$$

Thermonics® offers a range of process chillers for low (-40°C) and ultra-low (-100°C) temperature cooling. Products include air- and water-cooled chillers, and cryogenic chillers for cooling gasses and fluids. Chillers are compatible with a variety of heat transfer fluids delivering cooling capacities up to 25kW at -90°C, satisfying demands for industrial and mil/aero applications. We are a...

Thermonics Chillers $$$

EcoChillers, Inc. provides eco-friendly chillers for the manufacturing industry. We work to make sure that you have a high-quality customer service experience. Our products are sure to help solve all of your chiller needs. We have an elite team of dedicated and seasoned professionals who make sure that you have top of the line service with world class parts. We devote extra attention to making...

EcoChillers, Inc. $$$

Founded in 1970, we remain focused on the design, manufacture and sales of industrial chillers and temperature controllers, with a long and vast experience in high accuracy systems. The wide range of the products permits to satisfy all specific demands of all kinds and sizes of industries. Frigosystem can structure their offer with tailor-made plants and proposals, always oriented to efficiency...

Frigosystem-Corema $$$
Get Your Company Listed
placeholder image Cold Shot Chillers Delta T Systems, Inc. Thermal Care, Inc. Dimplex Thermal Solutions Thermonics Chillers EcoChillers, Inc. Frigosystem-Corema

In chillers, glycol mixed with water can lower the freezing point of water to negative 60 degrees Fahrenheit (-51 °C), making it usable in large, complex systems such as ice rinks. The use of glycol guarantees that the cooled areas will remain frigid.

Glycol Chiller

Types of Glycol

The term glycol refers to a number of chemical formulas. Understanding the various types is essential to selecting the correct formula required by an individual glycol chiller. The wide range of glycols includes ones that are extremely toxic and ones that are less toxic and much safer. The two basic types of glycol are ethylene glycol and propylene glycol.

Ethylene Glycol

The molecular formula for ethylene glycol is HOCH2CH2OH and is known as 1,2 ethanediol. It is colorless, sweet, oily, and has a mild odor. Ethylene glycol is made from ethylene oxide and is predominantly used as antifreeze for automobile cooling systems. Ethylene glycol and its many derivatives are toxic and should be handled with great care. The percentage of ethylene glycol used in industrial applications is determined by the ambient outdoor temperature and the required temperature of the application loop. It is not used for food processing due to its high toxicity.

Ethylene Glycol

Propylene Glycol

Propylene glycol, also known as 1,2 propanediol, has the same physical properties as ethylene glycol but is non-toxic, biodegradable, safe for human contact, and used for food production, cosmetic manufacturing, and oral hygiene products. It is produced in large quantities from propylene oxide. In the food industry, propylene glycol is used in freezers and chillers with the potential for human contact. Although it is a synthetic chemical, it can easily be absorbed in water and has the Food and Drug Administration's (FDA) approval. Propylene glycol is used for moisture control in medicines and cosmetics.

Glycol Chiller Design

In a glycol chiller system, glycol is mixed with water in varying percentages depending on the system's design. Essentially, glycol enhances the ability of water to perform as a cooling agent. Due to the potentially hazardous nature of glycol, all glycol systems are closed-looped, so the glycol is not exposed to the environment and is contained in a sealed set of tubes.

Closed Loop Glycol Chiller Design

Closed looped glycol chiller systems constantly circulate the coolant through a set of tubes. The design prevents the glycol from being contaminated, keeps it clean, and does not involve scaling or fouling. In a closed loop glycol chiller system, the water in the system is also sealed into the system, eliminating the possibility of water loss from evaporation.

A closed-looped glycol chiller system is economically sound and environmentally friendly. The system uses less pumping power to move the coolant through the system. In addition, the water in the system is constantly reused and cycled, which reduces the amount of water necessary for system operation.

Closed Looped Chiller System

Heat Exchanger

The heat exchanger of a glycol chiller system is connected to the inlet and outlet legs of the cooling line. Various heat exchangers are used with glycol chillers and include jackets on a tank, plate exchangers, shell and tube exchangers, and cooling snakes. The heat exchanger (evaporator) transfers heat between the glycol water coolant and the glycol refrigerant. In a glycol chiller system, the heat exchanger is referred to as an evaporator. The type of evaporator used in the system depends on the needs of the system where it is used.

Chiller Pump

Glycol has very low viscosity, necessitating using powerful pumps to operate the chiller system. A water glycol system pump has a motor to circulate the glycol to maintain consistently cool temperatures. The pump is an essential element of the system and ensures that the system operates at optimum efficiency.


Compressors are a necessary part of all chiller systems. They are designed to take low pressure and temperature glycol refrigerant and compress it sufficiently to increase its pressure and temperature. The different types of compressors for a glycol chiller system include positive displacement, screw, diaphragm, rotary, and centrifugal.

Screw Compressor


The condenser collects the unwanted heat from the compressor, where the refrigerant has been packed tightly under high pressure. In the condenser, the heat is picked up from the glycol refrigerant and released through the cooling tower of a water cooled system or blown away by fans in an air cooled system.

Ratio of Water to Glycol

An important aspect of the operation of a glycol chiller system is the ratio of water to glycol. Of the many factors to consider, the first two include the location of the chiller and the ambient temperature. For indoor systems, there is little need to protect against system freezing, and the ratio of water to glycol will be very low. For outdoor use of a glycol chiller, the ratio of water to glycol is much higher.

In such a system, the temperature in the evaporator should be 10° below the setpoint temperature of the glycol chiller. The calculation of the ratio of water to glycol depends on the coldest temperature the system will reach during operation. The chart below is an approximation of water to glycol for different environments.

Glycol Chiller Applications

Choosing the Right Glycol Chiller Supplier

To ensure the most positive outcome when purchasing a glycol chiller from a glycol chiller supplier, it is important to compare several companies using our glycol chiller directory of glycol chiller suppliers. Each supplier has a business profile page that highlights their areas of experience and capabilities, along with a contact form to directly communicate with the company for more information or to request a quote. Review each glycol chiller company website using our proprietary website previewer to get an idea of what each company specializes in. Then, use our simple RFQ form to contact multiple glycol chiller companies with the same form.

Glycol Chiller Informational Video


Liquid Chillers Power Pages

Air Cooled Chillers

Air Cooled Chillers

Air cooled chillers are refrigeration systems that cool fluids and work in tandem with the air handler system of a facility. Air cooled chillers are types of chillers that rely on the use of fans to reject heat outside the...



A chiller is a cooling mechanism designed to produce fluids that can lower temperatures by removing heat from the fluid. The type and use of a chiller depends on the required temperature and kind of refrigerant, which can be a liquid or a gas...

Glycol Chillers

Glycol Chillers

A glycol chiller is a chilling system that uses a percentage of glycol mixed with water to create extremely low temperatures far beyond the freezing point of water. The two types of glycol are ethylene glycol based or propylene glycol based...

Laser Coolers & Laser Cooling

Laser Coolers & Laser Cooling

Laser cooling is a multi-process that includes a number of techniques in which atomic and molecular samples are cooled down to a temperature near absolute zero. These techniques depend on...

Water Chiller

Water Chiller

A water chiller, or chilled water system, is a type of refrigeration system which uses water as a secondary refrigerant. They are used for larger, more complex, heating, ventilating, air conditioning, and refrigeration (HVACR) applications...

Cooling Towers

Cooling Towers

Cooling towers are specialized heat exchangers that remove heat from water mainly by means of latent heat loss from evaporation while coming into contact with an airstream. Aside from evaporative cooling, water is also cooled by sensible heat transfer due to the temperature difference between air and water...

Heat Exchangers

Heat Exchangers

Heat exchangers are pieces of equipment used to transfer heat between two or more fluids. This process usually involves abundant working or utility media such as water or air that rejects or absorbs heat from a more valuable fluid such as crude oil, petrochemical feedstocks, and fluidized products...

Plate Heat Exchanger

Plate Heat Exchanger

A plate heat exchanger (PHE) is a compact type of heat exchanger that utilizes a series of thin metal plates to transfer heat from one fluid to the other. These fluids are typically at different temperatures...

Steam Boilers

Steam Boilers

A steam boiler is a steam producing heating system. It creates energy by heating water to get steam. It is a heat exchanger that makes steam for outside usage and has a combustion chamber and water container. The several varieties of steam boilers include...

Heat Transfer Equipment

Featured Industries