GLY Series glycol recirculating chillers Dry cooling only via air
Cooling capacity from 5 kW to 15,000 kW
Free cooler for closed and open consumer circuits for outdoor installation
DELTATHERM® recirculating chillers of the glycol series are characterised by an extremely economical and reliable operation as well as a long service life.
Our glycol recirculating chiller range includes a variety of recirculating chillers with closed or open consumer circuits which are available in different designs such as the V-shape or in vertical and horizontal versions. Standard glycol coolers are offered in hot-dip galvanised sheet steel with weatherproof paint; optionally also with stainless steel cladding.
Circulating media
Water 
Emulsion 
Oil
Flow temperature range
0 – 100 °C
Dry coolers cool with air only: energy-efficient and environmentally friendly
If water is not available for wet cooling, dry coolers or glycol coolers (also called glycolers) of the DELTATHERM® GLY Series are regularly used.
In a dry cooler, a heat exchanger releases the excess energy to the ambient air. This is usually equipped with fans for optimised cooling performance.
Possible applications of free cooling
Free cooling can be used in different ways for process cooling. Depending on the climatic conditions of the location, the existing spatial, technical conditions and prerequisites, there are different approaches and possibilities.
We will be happy to advise you on this.
If only pure dry cooling with air via free coolers is to be used, then the outside temperature must always be lower than that of the medium to be cooled. With dry cooling, the cooling water temperatures depend on the ambient or outside temperature.
Therefore, a dry cooler is particularly suitable when the medium temperatures are higher than the outside temperature; e.g. between 10 °C and 25 °C. The northern European climate is advantageous for the use of free cooling.
Dry cooling therefore does not incur any additional energy costs, as is the case with compressor cooling.
A very economical and environmentally friendly as well as efficient way of process cooling.
Combining a refrigeration system with a free cooler saves considerable operating and energy costs and reduces CO2 emissions. The temperature stability of the cooling medium thus remains constant during process cooling, costs are reduced and the environment is protected.
With this variant, the refrigeration system is only used temporarily, for example in hot summer months or when the outside temperatures are too high. When temperatures are sufficiently low, the free cooler takes over the re-cooling of the water so that the compressor of the refrigeration system doesn’t have to run as often, which can greatly slash electricity costs.
Hybrid cooling is a combination of dry and evaporative cooling. The hybrid cooler uses evaporative cooling (via water spraying) when outside temperatures are too high to produce the desired cooling temperature. This process is also known as adiabatic cooling (evaporative cooling).
Like the dry coolers or glycol coolers, hybrid coolers are also available in horizontal or vertical design as well as in the V-shape. Learn more about this in the section Hybrid cooler.
If you need help or have further questions, we will be happy to help you. Send us a message directly via the above direct inquiry.
Product views GLY series
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Direct inquiry
Here you can make your inquiry about dry cooling or request advice from our specialists about this product.
Used machines
Our standard industrial coolers are also available both from stock and as reconditioned used units. We are constantly expanding the range of our used machinery market.
It’s worth a look. Maybe there is something for your application.
Other recooling systems
Main application area
Plastics Industry
Cooling and temperature control of injection moulding machines, blow moulding machines and extruder lines as well as other plastics processing machines. Our industrial coolers, refrigeration systems or temperature control systems are used for mould cooling and hydraulic cooling.Learn more
Packaging and Printing Industry
Cooling and temperature control of printing rollers, UV lamps for labelling printing machines; spindles and drives, blister machines; plastic blowing machines (PET bottles); film sealing machines; can sealing machines.Learn more
Medical and Laboratory Technology
Cooling of sensitive devices MRT, CT, RX, magnetic coils The wide range of medical applications and laboratory processes require individual cooling and temperature control solutions. The use of redundant systems ensures safe and reliable operation.Learn more
Food, Chemistry & Pharma
Temperature control of stirring and mixed tanks and heat exchangers. DELTATHERM® temperature control and heating/cooling units allow you to respond very flexibly to individual requirements and achieve optimum solutions in the temperature range from -80 °C to +300 °C.Learn more
Plastics Industry
Cooling and temperature control of injection moulding machines, blow moulding machines and extruder lines as well as other plastics processing machines. Our industrial coolers, refrigeration systems or temperature control systems are used for mould cooling and hydraulic cooling.Learn more
Packaging and Printing Industry
Cooling and temperature control of printing rollers, UV lamps for labelling printing machines; spindles and drives, blister machines; plastic blowing machines (PET bottles); film sealing machines; can sealing machines.Learn more
Medical and Laboratory Technology
Cooling of sensitive devices MRT, CT, RX, magnetic coils The wide range of medical applications and laboratory processes require individual cooling and temperature control solutions. The use of redundant systems ensures safe and reliable operation.Learn more
Food, Chemistry & Pharma
Temperature control of stirring and mixed tanks and heat exchangers. DELTATHERM® temperature control and heating/cooling units allow you to respond very flexibly to individual requirements and achieve optimum solutions in the temperature range from -80 °C to +300 °C.Learn more
Plastics Industry
Cooling and temperature control of injection moulding machines, blow moulding machines and extruder lines as well as other plastics processing machines. Our industrial coolers, refrigeration systems or temperature control systems are used for mould cooling and hydraulic cooling.Learn more
Packaging and Printing Industry
Cooling and temperature control of printing rollers, UV lamps for labelling printing machines; spindles and drives, blister machines; plastic blowing machines (PET bottles); film sealing machines; can sealing machines.Learn more
Medical and Laboratory Technology
Cooling of sensitive devices MRT, CT, RX, magnetic coils The wide range of medical applications and laboratory processes require individual cooling and temperature control solutions. The use of redundant systems ensures safe and reliable operation.Learn more
Food, Chemistry & Pharma
Temperature control of stirring and mixed tanks and heat exchangers. DELTATHERM® temperature control and heating/cooling units allow you to respond very flexibly to individual requirements and achieve optimum solutions in the temperature range from -80 °C to +300 °C.Learn more
