Finned tube radiators are used to heat moving air or gases. Applications include drying plants, air heaters (including in rail vehicles) and defrost heaters and hot cupboards. Almost all the customers for finned tube radiators are found in industrial companies.
DEW heating element calculator
With the DEW heating element calculator you can comfortably calculate important values for the heating element you are looking for. Determine, for example, the power required to warm up a substance with a specific mass from temperature T1 to T2 in a certain time.
Select the value that you want to calculate, enter all values and click "Calculate":
Outer diameter: Ø 22.5 mm or Ø 28.5 mm
Stretched length: Max. approx. 4,500 mm, of which approx. max. 4000 mm finned
Power: Customer-specific
Output improved by up to 2.5 times in comparison to conventional tubular heatersDesign
In terms of design and layout, finned tube radiators are almost identical to tubular heaters – apart from one key difference. With the aid of a special winding machine, the 7 or 10 mm steel strip is wound into a spiral on the tubular heater. These steel strip fins increase the surface area of the heater, which also boosts its capacity for dissipating heat. This enables us to install more powerful heating coils and helps us to boost output by a factor of up to 2.5 in comparison to conventional tubular heaters.
Installation / temperature control
No special rules need to be taken into account during installation of these assemblies. Threaded bushes are generally pressed or brazed on for fastening to make it easier for the customer to install the unit in the relevant system or in their own device. DEW can also supply appropriate temperature control systems.
