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Gas to liquid coolers

The gas-to-liquid cooler range has been specifically developed for heat transfer between media with large differences in volume flow or gas flow where a low pressure drop is desired. In addition to being widely used in CHPs (cogeneration) and compressors, media temperatures between -160 and +700 degrees Celsius are possible. This series of heat exchangers are extremely suitable for this.

Compact size, low pressure drop

During the development of the GTL series, the starting point was to develop a heat exchanger that would be more than 75% smaller than the traditional shell-and-tube coolers on heat transfer and pressure drop. The cooler consists out of thin stainless steel plates that are soldered with copper or nickel. Despite the thin plates, high working pressures of up to 25 barg are possible.


The GTL series consists of 2 main groups:

  • A heat exchanger with integrated connections (GL50 to GLH150).
  • Separate heat exchanger module to be built into a custom housing (GLX30 or GLXN30).

Integrated condensate drain

Except for the separate module coolers GLX30 and GLXN30, the other coolers have 2 integrated condensate drains. These are very useful for compressor systems, in this way a combination of drying air and cooling can be combined in 1 housing.

Heat recovery (also for retrofit)

The GTL heat exchangers can also be used for existing systems. Due to the low pressure drop on the gas side, it can be used very well for heat recovery. Limited by the water temperature due to steam, large amounts of heat can be recovered if they are installed in the right place (see Aalborg).

Stand-by engines

In the maritime world, backup and redundancy are essential for keeping the ship in question safe. Part of this backup are stand-by engines that are continuously kept at a minimum temperature so in the event of an emergency they can quickly start up when the main engine has problems. This standstill heater for the backup engine is often equipped with an electric coil with a cooling water pump that is fed by the generator on board. This electric heater can be easily exchanged by a GLH exchanger fed by the main engine.

Biogas, cryogenic and exhaust gases

In addition to the more standard applications, it is also possible to cool biogas, natural gas and diesel exhaust gases, as well as cryogenic applications of <-160 degrees.

Examples (contact Oversluizen for this)

  • Efficiency in compressor systems for, for example, a car factory.
  • Micro CHP installation (cooling water and exhaust gases).
  • Water-cooled turbo air for 5% extra efficiency in CHP installations.
  • Pre-cooler+dryer for compressors in high ambient temperatures.


Questions about this product?

Oversluizen is always ready to help you with specific questions. Contact us directly!