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Immersion
Heaters
Whether
you're working with heating, water, oil, chemical
or any one of a wide variety of liquids, the most
efficient approach to heating is the use of Immersion
Heaters. All of the heat generated by an Immersion
unit is absorbed by the liquid in which the unit is
immersed. There is no heat loss from the heating element.
Screw
Plug Heaters
Screw Plug Heaters have a NPT plug with threads
for permanent type installation. Screw plug heaters
are mounted near the bottom of a tank and can be removed
for cleaning or replacement. There are three basic
sheath materials used in screw plug heaters. Copper
is used for water, steel is used for oil or for liquids
that do not cause rust or corrision. SSTC, or incoloy
is for water or liquids that are corrosive. The heater
watt densities are very conservative for long trouble
free life. Copper units heating water can be 60 w/114
2 incoloy units can also see w/d as high as 60 w/IN
2, and steel on the other hand should not exceed 20
w/IN 2 and even lower for some bulk oils.
Engineering
Information
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