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Watlow Tubular And Process Assemblies

Tubular and Process Assemblies

  • Watlow’s WATROD tubular heater elements and flat FIREBAR elements are designed primarily for direct immersion in liquids such as water, oils, solvents and process solutions, molten materials as well as air and gases. By generating all the heat within the liquid or process, these heaters are virtually 100 percent energy efficient. These versatile heaters can also be formed and shaped into various geometries for radiant heating and contact surface heating applications. UL® and CSA component recognized elements available.

  • Products Available Sheath Diameters Sheath Materials Maximum Sheath Temperature Typical Maximum Watt Densities*
    mm in.
    WATROD Tubular® 6.6,
    8.0,
    9.5, 10.9, 12.0, 12.4, 15.9
    0.260, 0.315, 0.375, 0.430, 0.475, 0.490, 0.625 Inconel® To 871°C (1600°F) To 18.6 W/cm² (120 W/in²), dependent on the sheath material, watt density and heater application
    Incoloy® To 871°C (1600°F)
    304SS To 650°C (1200°F)
    316SS To 871°C (1600°F)
    Steel To 400°C (750°F)
    Copper To 175°C (350°F)
    Single-Ended Tubular 9.5, 10.9, 12.0, 12.4, 15.9 0.375, 0.430, 0.475, 0.490, 0.625 Incoloy® 650°C (1200°F) To 7 W/cm²
    (45 W/in²
    304SS
    High Temperature WATROD 9.5 and 10.9 0.375 and 0.430 Inconel® 600 To 980°C (1800°F) To 4.7 W/cm²
    (30 W/in²)
    MULTICOIL 12.0 and 12.4 0.475 and 4.90 Inconel® To 871°C (1600°F) To 18.6 W/cm² (120 W/in²), dependent on the sheath material, watt density and heater application
    Incoloy® To 871°C (1600°F)
    304SS To 650°C (1200°F)
    316SS To 871°C (1600°F)
    Steel To 400°C (750°F)
    Copper To 175°C (350°F)
    FIREBAR Flat Tubular 5/8 in.:
    5.9 x 16.5
    0.235 x 0.650 Incoloy® 760°C (1400°F) To 14 W/cm² (90 W/in²
    304SS 650°C (1200°F)
    1 in.:
    5.9 x 25.7
    0.235 x 1.010 Incoloy® 760°C (1400°F)
    304SS 650°C
    (1200°F)

    *These are typical maximums and vary based on application parameters.

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