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Air PreheatersAir_Preheaters

The product range Air Preheaters supplies heat exchangers of all sizes for a wide spectrum of applications: for heating and evaporation, for cooling and condensation as well as for heat recovery. Our vast experience, gained over several decades, in the design and construction of heat exchangers has made GEA one of the leading suppliers of heat exchangers for cooling and heating gaseous and liquid fluids. Our success derives from our ability to supply a variety of different plain and finned tube systems, enabling us to solve the most diverse application problems.

Fields of Application 

  • Air preheaters for waste incineration plants
  • Economizers for steam, oil, and hot water generation
  • Waste gas cooling after thermal incineration
  • Air heaters for chemical and process applications


Different Heat Exchanger Variants:

Standard Style:D Series
The D style is designed for higher pressures. This design meets standard official inspection requirements. The heating or cooling fluid connections are usually welding neck flanges designed to meet the requirements of the relevant pressure stage. The heating and cooling surfaces are galvanized finned tubes. The air connection frame is provided with a protective coating. Customized designs can be supplied.

Style D5
Robust, welded design with a non-tight air-side connection frame.

Style D6
Robust, welded design without an air-side connection frame.

Style D7
Robust, welded design with an air-tight connection frame up to 1000 mm WG owing to a jacket. Air-tightness is ensured by a gland.

Style D8
Same design as D7, but with a gas-tight connection frame up to 2000 mm WG and metal bellows.