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Water Glycol Cooling System

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Water Glycol Cooling System

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A water glycol cooling system is an industrial refrigeration system that uses an antifreeze called ethylene glycol mixed with water to lower the freezing point of the refrigeration system in the application.

Ethylene glycol is a class of organic compounds belonging to the alcohol family. When mixed with water and pumped through the pipes of a cooling system, ethylene glycol slows down freezing. It helps maintain temperature consistency across applications. Some glycol products can also inhibit corrosion and bacterial growth within cooling system piping.

Comparison of Two Ethylene Glycols

There are two varieties of ethylene glycol that should never be mixed together: ethylene glycol and propylene glycol. Both types offer the same relative frost protection rating. Both also help prevent corrosion. Certain grades of both types of glycol can also help prevent the growth of algae and bacteria inside the cooler.

Ethylene glycol

Ethylene glycol is a moderately toxic chemical that has a sweet taste and may be harmful if swallowed. Therefore, it should not be used in drinking water or food processing systems where leakage is possible. Ethylene glycol is more widely used due to its lower purchase price. Industrial applications such as skating rinks and factories that require large amounts of coolant find this to be the most economical option for ethylene glycol.

Propylene glycol

Propylene glycol is less toxic and is considered a food-grade antifreeze. This type of glycol is safer than ethylene and easier to handle. Propylene glycol is commonly used in the food industry or in industrial refrigeration systems where people may come into contact with liquids. Propylene glycol may also be more viscous than ethylene, slightly affecting heat exchange rates even when used at very low temperatures. It is important to note that you should never mix different types or brands of glycols as this can cause condensation of the product and clogging of filters in the refrigeration system, which can cause heat transfer and fluid flow problems.

 

Water Glycol Cooling System

 

Mixing water with ethylene glycol in industrial refrigeration systems

Ethylene glycol must be mixed with water to function properly. The type and amount of water to be used are key factors to consider.

Water type

Each glycol chiller has its own set of manufacturer recommendations for the best type of water to use with the system. Although tap water is initially acceptable, long-term use of deionized water is rarely recommended as it may adversely affect certain metals in the cooler. Sometimes manufacturers require coolers to use distilled or reverse osmosis water. The key is to check with the manufacturer about your refrigeration system’s specific needs.

The ratio of water to ethylene glycol

Calculating the appropriate ratio of glycol to water in a cooling system depends on the coldest temperature the glycol solution will reach during operation. If the cooling system is used indoors where there is no chance of freezing, the amount of glycol required will be significantly less than that required for a glycol chiller where outdoor temperatures tend to drop below freezing. Additionally, if the application requires very low temperatures to operate, a glycol mixture similar to that used in outdoor systems should be used. In cooling systems, this temperature is typically the saturated suction temperature in the evaporator, and this temperature is typically 10°F below the cooler set point temperature. It is important to use the proper ratio of glycol and water in your cooling system.

 


 

We provide complete temperature control systems design and manufacturing. From standard models to complete customized products up to 900 tons. We specialize in customer service and are dedicated to helping each customer have the optimal temperature control system for their specific need.

We provide non-standard customized solutions. Both single cooling chillers and cooling & heating combo units are available.

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Cooling Chillers                                                                                                     

 

recirculating chiller

Recirculating Chillers / Refrigerated Circulator

(Custom Designs)

The chiller can be widely used in various industries and laboratories, and supports customized design.

 

 

Temperature range  -25°C ~ +30°C series  -45°C ~ +30°C series  -60°C ~ -20°C series  -80°C ~ -20°C series  -120°C ~ -70°C series
Cooling Capacity 0.8 ~ 30kW 0.75 ~ 12kW 0.4 ~ 6kW 0.2 ~ 6kW 0.3 ~ 5kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

 


 

Precision Chillers / Small ChillersWater Chillers / Small Chillers

(Custom Designs)

The chiller can be widely used in various industries and laboratories, and supports customized design.

 

 

Temperature range  -18°C ~ +30°C  +5°C ~ +35°C series
Cooling Capacity 0.35 ~ 0.9kW 1.8 ~ 50kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

 


 

low temperature chiller

Low Temperature Chillers

(Custom Designs)

We specialize in the production of low-temperature chillers with a temperature control range as low as -150°C, which can meet the refrigeration needs of different industries.

 

 

Temperature range  -25°C ~ -5°C series  -45°C ~ -10°C series  -60°C ~ -10°C series  -80°C ~ -30°C series -110°C ~ -50°C series  -150°C ~ -110°C series
Cooling Capacity 12 ~ 360kW 6 ~ 180kW 6 ~ 180kW 4 ~ 180kW 2 ~ 120kW 2.5 ~ 11kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

 


SEMICONDUCTOR CHILLER

 

High Temperature Chillers

(Custom Designs)

The chiller can be widely used in various industries and laboratories, and supports customized design.

 

 

Temperature range  +5°C ~ +40°C  -25°C ~ +40°C  -45°C ~ +40°C  -80°C ~ +80°C  -100°C ~ +80°C
Cooling Capacity 6 ~ 40kW 2 ~ 15kW 1 ~ 8kW 0.6 ~ 3kW 1.5 ~ 3kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

 

 

Cooling and Heating Chillers                                                                            

 

1

Cooling and Heating Chillers

(Custom Designs)

Temperature Control Range: -120°C to +350°C

cooling and heating thermostat, widely used in various industry.

 

Temperature range  -10 ~ +150°C series  -25 ~ +200°C series  -25 ~ +300°C series  -45 ~ +250°C series  -45 ~ +300°C series  -60 ~ +250°C series  -60 ~ +300°C series  -70 ~ +250°C series  -80 ~ +250°C series -90 ~ +250°C series  -100 ~ +100°C series
Cooling Capacity 1.5 ~ 15kW 1 ~ 200kW 1 ~ 200kW 0.45 ~ 200kW 0.9 ~ 25kW 0.25 ~ 60kW 0.75 ~ 25kW 0.4 ~ 15kW 0.3 ~ 80kW 0.2 ~ 80kW 0.45 ~ 80kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

 


 

低温循环器

Recirculating Heater Chillers

(Custom Designs)

Temperature Control Range: -45°C to +250°C

 

Temperature range  -25°C ~ +200°C series  -45°C ~ +250°C series
Cooling Capacity 1 ~ 15kW 0.25 ~ 15kW
Note: Any temperature range from -150℃ ~ +350℃ and any cooling capacity can be customized

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