Screw plug immersion heaters are ideal for direct immersion heating
of liquids, including all types of oils and heat transfer solutions.
Available in a variety of sizes, Watlow® screw plug immersion heaters
feature both WATROD™ round and FIREBAR® flat tubular elements.
Heating elements are hairpin bent and either welded or brazed into
the screw plug —depending on element sheath and plug material
General purpose (NEMA 1) terminal enclosures are standard; with
optional moisture resistant (NEMA 4), explosion resistant (NEMA 7) and
explosion/moisture resistant (NEMA 7/4) enclosures available to meet
specific application needs.
Optional thermostats provide convenient process temperature regulation to the screw plug immersion heater.