The lab-coat view of a Wire Wound Fin Tube

turbulators, pin fin tubes, fin tubes, turbulator

A Wire Wound Fin Tube is essentially a tube that consists of wire loops that are both fastened and soldered to the tube. A specially flattened wire running through the base of the wire loop fins is responsible for this fastening.

This wire holds in place and the solder bonds the loops. This gives a 100% fin efficiency and the airside turbulence created by the looped wire fins gives an airside heat transfer coefficient 2-3 times that of helical fin tubes.

The addition of a wire turbulator within the tube would further raise the efficiency on the tubeside by a factor of 3 to 10.


  1. Compact equipment design.
  2. Lower overall airside pressure drop and hence lower power consumption.
  3. Customizable fin density and height as per design requirements.

A Wire Wound Fin Tube, being soldered, is restricted to applications where the temperature is below either 180 or 280 C depending on the solder used in its construction. As Aluminium does not solder well, the tube or fin cannot be made from it.

Where Wire Wound Fin Tubes can make all the difference:
Wire Wound Fin Tubes do to heat transfer what turbochargers do to internal combustion engines. They raise performance and lower equipment size.

They’re especially useful in the following applications:

  1. Steam air Heating applications: This is because the wire fins have a high airside coefficient and are able to best utilize the very high coefficient of condensing steam.
  2. Water Heaters/ Coolers: Once again the high coefficient is useful.
  3. Oil coolers: Here, to realize their full potential, they must be used together with turbulators produced by our Turbulator division.
  4. Compact high strength but light weight Heat Exchangers to be used with equipment like Hydraulic Oil coolers, Lube Oil Coolers and assorted Oil and Water Coolers.