Backer Hotwatt Tubular Heaters Finned

Eagle Sensors & Controls is an authorized Backer Hotwatt distributor. Contact us with sales and application support.

Tubular-and-Finned-Tubular

Description

U.L. AND C-UL Recognized No. E177353

Features
  • Mechanically-bonded continuous fin assures excellent heat transfer and helps prevent fin vibration at high air velocities.
  • Several standard formations and mounting bushings available.
  • Standard fin is high temperature painted steel with steel sheath.
  • Optional stainless steel fin with stainless steel or incoloy sheath for corrosion resistance.
  • 120v, 208v, 240v, 480v available.
  • Maximum Sheath Temperature
    750°F (400°C) – Steel
    900°F (480°C) – ST.ST./INCOLY
  • Made in U.S.A.
Construction

Steel, stainless steel, copper, or Incoloy sheathed elements.

  1. Element wire situated in proximity to outside surface for maximum heat transfer and minimum internal temperature while preserving good dielectric qualities.
  2. Pure magnesium oxide compressed to an optimum density for best heat transfer and electrical insulation at elevated temperatures.
  3. Weld connection.
  4. Cold pin.
  5. Insulator.
  6. Standard post terminal.
  7. Painted steel or stainless steel continuous fin (approx. 5 per inch)
Diameter: .315
Maximum Amperage: 30
Sheath Length Cat. No. Wattage
12″ FT31-12 530
15″ FT31-15 700
24″ FT31-24 1250
36″ FT31-36 1960
48″ FT31-48 2675
60″ FT31-60 3385
72″ FT31-72 4100
96″ FT31-96 5500

Available in Voltages up to 250V

Finned Tubular Specs

Diameter: .440
Maximum Amperage: 40
Sheath Length Cat. No. Wattage
12″ FT44-12 750
15″ FT44-15 1175
24″ FT44-24 1725
36″ FT44-36 2725
48″ FT44-48 3725
60″ FT44-60 4725
72″ FT44-72 5700
96″ FT44-96 7700

vailable in Voltages up to 480V Wattages in the above tables are based on 60w/in². Other wattages both higher and lower are available depending upon operating conditions. Consult factory for details. Available in lengths between those and longer than those listed in the above tables. Maximum length is 120″.

Optional Configuration

Finned Tubular Configurations 

Units may be formed to various shapes. Typical configuration shown above.
Minimum radius as follows:

Sheath diameter Minimum radius
.315 3/4 in.
.440 7/8in.

Units may be supplied with mounting fittings.Standard termination is post type termination (SF3S), optional terminations are also available. Information on mounting fittings and optional termination can be found in our Tubular: Straight and Formed section.