MULTI Kühlsysteme

Dry cooler in horizontal design

Dry cooler in horizontal design
Dry cooler in horizontal design
Dry cooler in horizontal design

Applications and characteristics

Dry cooler in horizontal design
  • For outside installation
  • Preferably water-glycol-mixture
  • Water inlet temperature to max. 90°C (safe below steam range)
  • Ambient temperatures from -30 to +60°C
  • Cooling water temperatures depend onambient air temperatures; controllable by speed control of fans
  • Industrial applications in all common industries and building technology
  • Cooling of devices in the chemistry, process gas compressors, cylinder head cooling of diesel engines, test benches
  • Interconnected operation with cooling towers or chillers
  • For cooling systems that operate in an atmospheric closed cooling water system, no pollution of the coolant


  • Housing made of painted galvanized sheet steel RAL 7035 (light grey)
  • Heat exchanger as lamella package construction with easy cleanable lamella from pure aluminium (other materials on request available); inner pipes from cooper
  • Heat exchanger soldered under protective gas to avoid oxidation
  • Use of energy-efficient fan types; low-noise and low-maintenance
  • Continuously adjustable speed controlled fans

Mode of action

A dry cooler is used in a closed cooling circuit to cool a medium (water or water-glycol mixture) and dissipates the extracted heat to the air. The medium is passed through a closed tube bundle heat exchanger. To increase the transfer surface lamella are often mounted on the pipes.

A special design is the so-called hybrid cooler. For the hybrid cooling, the heat can dissipate to the environment in both, a sensitive way (by heating of the air) and a latent way (as evaporated water). To obtain a coolant temperature lower than the dry air temperature, the dry coolers are wetted with water.