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Heating Liquids/Surface Heating and Immersion
Heating a liquid can be accomplished using any of several heater types and/or a combination of types. Some heaters physically lend themselves to direct immersion in the liquid, while others are better suited for heating a pipe or vessel containing the liquid. The application descriptions below will give you a general idea on how a particular heater type is applied to heating liquids and some common examples.

Heater Type/Application Description
Band Heaters

Clamped to exterior or interior cylindrical surfaces.

Applications

  • Freeze protection of liquids in pipes
  • Heating liquids in processing lines

  • Cable Heaters

    Wrapped around a pipe or vessel containing a liquid, as an immersion heater, or coiled inside a short section of tubing to form a circulation heater. Often used in applications with limited space.

    Applications

  • Photo processing equipment
  • Scientific instruments
  • Heat tracing

  • Cartridge Heaters

    Mounted with a screw plug or placed in a protection well. Direct immersion recommended for water or 90+ percent water soluble solutions.

    Applications

  • Food preparation
  • Laboratory equipment
  • Boilers

  • Cast-in Heaters

    Cast with fluid passages to produce a circulation heater; or clamped around a barrel or pipe. Most often used where long life, contamination resistance and reliability are critical. Fluid passages can also provide cooling for heat/cool applications.

    Applications

  • Custom machinery component
  • Paint sprayers
  • Blood analyzers

  • Ceramic Fiber Heaters

    Heater panels assembled into a chamber that surrounds a tank, vessel, crucible or bath. Made-to-Order heaters can accommodate sinuated tubing and more. Radiant and convection heat transfer heats the load.

    Applications

  • Fluidized beds
  • Non-ferrous metal melting and holding

  • Flexible Heaters

    Bonded or vulcanized to the surface of a pipe or vessel. Well suited for curved and irregular shaped objects.

    Applications

  • Freeze protection
  • Respiratory therapy units
  • Hydrotherapy baths

  • Strip Heaters

    Bolted or clamped to the flat wall of a tank or vessel. Used in applications offering a suitable mounting surface and location.

    Applications

  • Freeze and moisture protection
  • Food warming
  • Tank heating

  • Tubular and Immersion Heaters

    Most often used for immersion heating as screw plug, flange, circulation or over-the-side heater assemblies. Elements can also be clamped to a tank wall. Well suited for high kilowatt requirements.

    Applications

  • Deionized water rinse tanks
  • Chemical baths
  • Heat transfer fluids
  • Vapor degreasers

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