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Circulation Heater
Application Basics
Circulation Heaters are primarily intended for flowing liquid
immersion heating applications. Some low watt density, alloy sheath models
are also suitable for air heating applications.
Circulation Heaters with pipe style exchangers incorporate Bushing
Heaters and Flanged Heaters preinstalled into a pipe body. Smaller
Circulation Heaters incorporate a tube exchanger with integral heater and
are designed for lower flow volumes. All Circulation Heaters are designed
for forced circulation systems. Heater must be installed in a system so
that heater sheath tube is covered by liquid at all times during
operation. Circulation heaters must have free movement of the liquid
around the heating elements at all times. Circulating systems can be
mounted horizontally or vertically.
Catalog assemblies are offered in several sheath materials for
different application medium and operating temperatures.
Care should be taken to avoid air entrapment or pockets of
overheated liquid around the heater. System should include a flow switch,
over temp, or other device to prevent heater failure or system damage.
Sheath corrosion resistance and watt density compatibility is
extremely important in direct immersion heating applications. The
suggested sheath watt densities in the tables should be considered
maximums unless testing in the particular application shows that higher
densities can be used.
Please refer to general application guidelines, recommended watt
densities, sheath temperature limitations, corrosion guide, and other
engineering data to assist you with product selection.
Please do not hesitate to contact us for application or product
assistance. |
