Tubular Heaters - Finned Tubular Heaters

By: Bucan  09-12-2011
Keywords: Stainless Steel, Tubular Heaters

In applications where tubular heaters are exposed to forced convection, placing fins around tubularheaters increases their surface area and thus improves their heat transferring capacity. Finned tubularheaters, compared to regular tubular heaters, run at lower surface temperatures for the same watt densities when placed in identical air streams. Graph1 compares watt density, outlet air temperature, and the speed of air flow for regular and finned tubular heaters respectively. Despite their advantages, finned tubular heaters are not recommended for applications where outlet air temperatures exceed 600°F.

The physical characteristics of a finned tubularheater play a major role in the effectiveness of its heat transfer. The table below specifies the outside diameter of fins, their thickness, the spacing between consecutive fins, as well as the element sheath and fin material.

Mounting Attachments

Threaded fittings, if required, are the standard mounting attachments supplied with finned tubularheaters. These fittings are brazed or crimped onto the heaters. For special applications, finned tubular heaters can be made with mounting brackets that have special designs.

TUBE DIAMETER FIN THICKNESS FINS PER INCH FIN WIDTH *TOTAL SQ.INCH PER LINEAR INCH *MAX SHEATH LENGTH *OUTSIDE DIAMETER OF FINS
0.260" 0.020" 5 0.375" 8.30" 240" 1.01"
0.315" 5 9.20" 1.07"
0.375" 5 10.10" 1.13"
0.430" 5 10.83" 1.18"
0.475" 5 11.60" 1.23"
*Dimensions are subject to change

OPTIONAL FEATURES

  • Rustproof Coating
  • Stainless Steel Fins And Tubular Sheath material
  • Nickel Plating
  • Special Mounting Accessories
  • Various Shapes

Learn more about Bucan Finned Tubular Heaters

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Keywords: Stainless Steel, Tubular Heaters

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