WATLOW High-Temperature Tubular Heaters


Single- and double-ended tubular heaters lend themselves to virtually the entire range of immersion and air heating applications. They have a variety of mounting and termination options that make them ideal for industrial applications. Watlow® tubular heaters are UL® and CSA component recognized up to 240V.

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Product Description

Product Description

Watlow manufactures high-temperature tubular heaters to bridge the gap between standard tubular heaters and Watlow MULTICELL™ heaters. This high temperature heater is well suited for process air heating applications in excess of 1300˚F (704˚C), resulting in a maximum sheath temperature of 1800˚F (983˚C). Controlled lab testing between the new design and current tubular designs shows an increase in life of approximately 50 percent.

The high-temperature heaters consist of an engineered tubing with an outer sheath of Alloy 600 and a special internal construction. The outer sheath offers high temperature capabilities, reduced oxidation as well as corrosion resistance.

The tubular heater offering is available in 0.430 and 0.375 inch diameters that are configurable either as formed tubulars or process heaters. The tubular heaters can also be welded to flanges and plates for mounting purposes. Maximum sheath length available is 275 inches for the 0.430 inch and 0.375 inch diameters. The factory should be contacted for longer sheath lengths.

Specification

Specification

Material Maximum Operating Temperatures Maximum Watt Densities
°F °C W/in2 W/cm2
Alloy 600 1800 982 45 6.9
  • Maximum sheath temperature up to 1800°F (983°C)
  • Maximum sheath length up to 275 in. (698.5 cm)
  • Maximum watt densities up to 30 W/in2 (4.7 W/cm2)
    • Applications

    Applications

  • High-temperature ovens and furnaces
  • Radiant heating
  • Drying
  • Environmental—VOC abatement
  • Process air heating: duct heaters, circulation heaters
  • Vacuum applications
  • Flue gas cleaning (desulphurization)
  • Fluidized beds
    • Features & Benefits

    Features & Benefits

    Features Benefits
    Alloy 600 sheath material and a special internal construction
  • Assures high temperature performance and corrosion protection in tough applications
    		•
    0.430 inch diameters
  • Allows heater to be configured to existing tubular designs that may be experiencing short life
  • 0.375 diameters are available in Watlow’s extended capabilities, contact your Watlow representative for details
    		•
    Dual-ended termination
  • Installs into flanges and screw plugs similarly to standard product configurations
    		•
    Bendable in standard formations
  • Makes the heater easy to apply in a wide variety of applications
    		•
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