Sterile or non-sterile: the sophisticated tube bundle heat exchanger

The use of tube bundle heat exchangers is again gaining more importance. The requirements of industry, processes and environment are increasingly more demanding. Where a plant has to satisfy extensive FDA requirements, the sterile tube bundle heat exchangers made by CALORIFER are a perfect solution.

Give us your briefing and we will provide an optimised and correctly sized solution for you.

Depending on the application and sector, the product is often subject to high requirements. These may relate to the thermodynamics as well as to corrosion or high mechanical stresses.

The correct selection and use of materials is of highly delicate nature and has remained a science. Various welding procedures are applied for bonding of tubes to tube sheet and welding free of gaps is used for especially critical connections.

Tube bundle heat exchanger:

Application areas

  • power generation industry
  • chemical industry
  • energy supplying & distributing industry
  • environmental technology
  • pulp & paper industry
  • construction materials and ceramics industry
  • textile and plastics industry
  • food industry
  • sterile technology

Operating ranges and sizes

  • pressure: vacuum operation up to over 500 bar
  • temperature: up to 1’000° C
  • diameter: up to 3 m
  • length: up to 20 m
  • weight: a few kilograms up to 70 tonnes and more


  • carbon steel
  • 1.4541, 1.4307, 1.4571, 1.4404, 1.4539, 1.4828 etc.
  • austenitic high alloy quality, e.g. 1.4539
  • heat-resistant quality such as 1.4828, 1.4841, 1.4878 etc.
  • non-ferrous metals such as Cu, CuNi10Fe, CuNi30
  • aluminium
  • duplex steel
  • titanium
  • nickel alloys