After following the prescribed steps in this design guide, the
reader will be able to design, select and/or specify or establish
a bill of materials for a steam tracing system.
For applications ranging from freeze protecting water lines to
maintaining elevated process temperatures as high as 1,250°F
(677°C), Thermon has a tracing product to fit the application.
These product families are distinctly broken down into three
groups: isolated tracers, bare convection tracers and conduction
Isolated Tracers . . . Designed for use with low to medium-low
heat requirements, Thermon’s SafeTrace® SLS-IT and
are metallic tracer tubes covered with composite materials that
lower thermal conductance to reduce heat output and temperature.
The reduced heat output of SafeTrace SLS-IT and
DLS-IT is predictable to ensure
controlled heat distribution
along the length of a
traced pipe without hot spots
or overheating. These tracers
also utilize a safety yellow
identification jacket to signify
the presence of inherently
dangerous materials such as
steam. A feature unique to SafeTrace SLS-IT and
DLS-IT is their
ability to run continuously from the steam supply manifold,
along the pipe and to the condensate return manifold.
Convection Tracers . . .
By using bare tracers or SafeTrace
tracers, convection tracing provides medium-low to medium
heat transfer requirements. SafeTrace BTS is a metallic tracer
tube covered with a special
high temperature polymer
jacket that provides a measure
of personnel burn protection
without sacrificing thermal
performance. The safety
yellow jacket also provides
corrosion resistance to most
acids and alkalis.
Conduction Tracers . . . When the heat requirements exceed
the capabilities of isolated and convection tracers, tracers aided
by heat transfer compounds should be used. Thermon’s heat
transfer compounds are available in a wide variety of configurations:
SnapTrace® preformed ﬂexible heat transfer compound
T-3 water based heat transfer compound
T-99 water based heat transfer compound
T-80 and T-85 epoxy base heat transfer compound
T-802 two-part resin based heat transfer compound
NH nonhardening heat transfer compound
EFS™-1 ﬂat, ﬂexible heat transfer compound)
transfer compounds are engineered to meet the application requirements, provide excellent
heat transfer at a fraction of the cost of a jacketed pipe system
while eliminating the possibility
of product contamination.
The heat transfer properties
of Thermon’s compounds are
so good that a single tracer
utilizing heat transfer compound
will do the work of
three to five bare tracers.
download pdf version