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We are a worldwide leader in the construction of pharmaceutical sterile heat exchangers in particular and support many sensitive industries with their use. The advantages are: Single tubes and double tube plates prevent media mixing in the event of leakage at tube connections or tube-sheet weld joints. The main areas of use are in the pharmaceutical and food industry.

Deller GmbH has long-standing experience in the construction of shell and tube heat exchangers, specifically with safety heat exchangers. Using double tubes and double tube plates, we create a security area that prevents mixing of tube and shell media and can be monitored with regards to leakage via the appropriate technology.

Our services include design and construction, in-house manufacturing, documentation as well as installation on site.

To ensure long-standing optimal operation of our heat exchangers, we offer after-sales services that can be used at any time.

Pharmaceutical Industry

Apart from producing medicine, many pharmaceutical companies additionally conduct their own research and development of new active ingredients. Use of our pharmaceutical sterile heat exchangers protects both the environment and the machines.

Single tubes and double tube plates prevent media mixing in the event of leakage at tube connections or tube-sheet weld joints and are in accordance with the requirements of the FDA (Food and Drug Association) as well as GMP (Good Manufacturing Practice). By using surface-refined materials as well as due to the special structural design we guarantee that the heat exchangers can be completely drained and sterilised. We place particular emphasis on the design and choice of gaskets for apparatus flanges.

Depending on requirements, the surfaces of the product area are electropolished to a roughness of 0.4 µm. For use in clean rooms, a gas-tight welded insulation is available.

The main areas of use are in the pharmaceutical and food industry.

The facts at a glance:

  • Product-facing surfaces are defined with regards to roughness (polished, electropolished)
  • Double tube plates (prevent media mixing in event of leakage at tube welds)
  • Can be drained completely and independently
  • Gaskets that touch products conform to FDA
  • On request also available with gas-tight insulation

Examples of our products:

  • GWD model
    U-tube apparatus, water-cooled / -heated with double tube plate
  • GDD model
    U-tube apparatus, steam-heated with double tube plate
  • GVSD model
    Straight-tube apparatus with double tube plates
Chemical Industry

With the development of our sterile heat exchangers and sterile safety heat exchangers we have earned a good reputation in the chemical industry.

Our safety heat exchangers reliably prevent media mixing and ensure the quality of your product. We exchange heat of all media, from low to high viscosity, from vacuum to high-pressure range. We are familiar with the specific requirements of the chemical industry, down to the last details.

Examples of our products:

  • Shell and tube heat exchangers
  • Safety heat exchangers
  • Falling film evaporators
Food Industry + Brewery Technology

The production and processing of food demands the highest of requirements. For decades, heat-transfer plants by Deller GmbH have fulfilled all requirements for the harmlessness of materials and surfaces, highest precision in finishing, and maximum operational safety.

With the development of our sterile heat exchangers and sterile safety heat exchangers we have earned a good reputation in the food and brewery sectors. Our safety heat exchangers reliably prevent media mixing during production processes and thus ensure product quality.

For a beer with character to unfold its full flavour and variety of aromas, it is vital to pay particular care to especially gentle and precise heating during the production process. The same care is applied to conserving the energy required for this process.

For food manufacturers worldwide our heat exchangers contribute to the good taste, optimal processing, long shelf life and health of their food.

For the food and beverage industry our heat exchangers are also available in sterile quality.

Examples of our products:

  • Zip heaters
  • External boilers
  • Internal boilers
  • Vapour condensers
Petrochemical Industry

Particularly in the petrochemical industry, where natural gas and suitable fractions of crude oil are used in the production of chemical compounds, safety and durability are main requirements. Here, Deller shell and tube heat exchangers, safety heat exchangers and falling film evaporators have an impact thanks to their complete reliability.

Our products transfer heat in a variety of media, from low to high viscosity, from vacuum to high-pressure range.

Examples of our products:

  • Safety heat exchangers
  • Shell and tube heat exchangers
  • Falling film evaporators