Therser UK Blog

Therser Wellman Fabrications Can Help With Radiant Tubes

Radiant tubes are a type of heat exchanger commonly used in various industrial processes for heating, cooling, or thermal processing applications. They are specifically designed to transfer heat through radiation rather than convection or conduction.

The basic construction of radiant tubes consists of a sealed, cylindrical metal tube made of materials that can withstand high temperatures and harsh operating conditions. The tubes are typically made of materials like stainless steel, nickel alloys, or other heat-resistant materials.

Picture2 alloy

The process involves passing a hot gas (usually combustion products or flue gases) through the interior of the radiant tube. The outer surface of the tube emits radiant heat energy, which is then absorbed by the objects or materials surrounding the tube. This method of heat transfer is highly efficient and is commonly used in various industrial heating applications.

Radiant tubes find applications in a range of industries, including:

  1. Heat treatment: In metalworking, radiant tubes are used in heat treatment furnaces to achieve specific metallurgical properties in materials like steel and aluminum.

  2. Industrial furnaces: Radiant tubes are utilized in industrial furnaces for processes such as annealing, forging, tempering, and drying.

  3. Glass manufacturing: Radiant tubes are employed in glass melting furnaces to provide uniform heating for the glass material.

  4. Petrochemical industry: They are used in cracking furnaces and reformers for processes like catalytic cracking and steam methane reforming.

Radiant tubes offer several advantages, such as efficient heat transfer, uniform heating, and the ability to operate at high temperatures. However, they also require careful design and maintenance to ensure their longevity and performance in demanding industrial environments.


If you are in need of new or your existing repairing please contact 01782 824453, or email



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