WATLOW Flange Immersion Heaters


Watlow’s immersion heaters 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 are available.

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Product Description

Product Description

Watlow plate flanged heaters are easy to install and maintain. These flanged heater products are designed for heating heat transfer fluids, medium and lightweight oils and water in tanks and pressure vessels. Plate flanged heaters are ideal for applications requiring low to medium wattage requirements.

Watlow plate flanged heaters are made with WATROD tubular elements that are brazed or welded to the flange. Stock plate flanged heaters are supplied with general purpose or moisture-resistant terminal enclosures.

Specification

Specification

Material Maximum Operating Temperatures Maximum Watt Densities
°F °C W/in2 W/cm2
Alloy 800 1600 870 100 15.5
304 Stainless steel 1200 650 100 15.5
steel 750 400 30 4.7
N/A 350 175 45 6.9
  • Watt densities to 100 W/in² (15.5 W/cm²)
  • Wattages to 18 kilowatts
  • Alloy 800 sheath temperatures to 1600°F (870°C)
  • 304 stainless steel sheath temperatures to 1200°F (650°C)
  • Steel sheath temperatures to 750°F (400°C)
  • Applications

    Applications

  • Water
  • Boiler equipment
  • Vapor degreasers
  • Fuel oils
  • Heat transfer fluids
  • Indirect heating of viscous fluids
  • Caustic solutions
  • Features & Benefits

    Features & Benefits

    Features Benefits
    Rapid ship program
  • Minimizes downtime
  • Direct replacement for many OEM mold temperature control units
  • Provides a single source supplier for many OEM applications
  • ANSI compatible 2 and 2½ inch flanges
  • Provides appropriate heater size-to-application fit
  • Standard general purpose or moisture resistant terminal enclosures
  • Offers easy access to wiring
  • Limits accidental contact with termination
  • Denies access to wiring connection in local environment
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