The global impact of COVID-19 on our people and the global economy is significant, and Watlow has taken a comprehensive approach to deal with the current crisis. Our contingency planning includes protecting our team members, communicating often with our customers and partners and maintaining the continuity of supply lines.

At the beginning of the pandemic, we set two priorities that guide our responses and decisions: the health and safety of our team members while continuing to supply essential products needed by our customers.

If you have questions about how the pandemic is impacting Watlow or Watlow’s response, please contact your Watlow representative.

Heating Liquids

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.



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


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