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Parker Hannifn Corporation
Parfex Division
Ravenna, OH
Catalog Number 4200-M-2 Chemical Processing and Refneries
HT— Heavy Steam Trace
General
Parker HT—Heavy Steam Trace Tubing consists of
a single process tube and tracer, non-hygroscopic
glass fber insulation and a black, 105°C rated, fame-
resistant PVC (FR PVC) jacket.
The HT—Heavy Steam Trace Tubing is designed to
be used with steam pressures of 15 PSIG (1 BAR) to
230 PSIG (15.8 BAR) and maintain a process tube
temperature of from 200°F (93°C) at -40°F (-40°C)
ambient to 355°F (179°C) at 80°F (26.6°C) ambient
with product surface temperatures of less than 140°F
(60°C) at 80°F (26.6°C) ambient. Standard product
has a Maximum Temperature Rating (MTR*) of 400°F
(204.4°C). Higher temperature rated designs are
available. Consult Division for details.
*Maximum Temperature Rating is the maximum
allowable temperature of the tracing fuid.
Temperatures in excess of this may damage the
product or alter its performance.
Applications
The HT—Heavy Steam Trace Tubing is used with
high temperature steam to heat trace instrument size
lines when elevated temperatures are required. Such
applications as pressure transmission and analyzer
sample lines carrying heavy oils or distillates, gases
or vapors are ideal service for the HT—Heavy
Steam Trace Tubing products. The direct tracer to
process tube contact produces higher process tube
temperatures than the light trace product.
Tubing
Type 122 DHP Seamless Copper and 316/316L
Welded Stainless Steel are standard. Additional
materials, wall thicknesses and seamless stainless
steel are available upon request. For Material
Specifcations of metal tubing, see Technical Data
section of the catalog. Consult Division for details.
Tubing Identifcation
When process tube and tracer tube are the same size
and material, each individual tube is printed with tube
number at two-inch intervals.
Insulation
Patented (U.S. Pat. No. 4,285,369) air-spaced, cross
wrapped applied non-hygroscopic fberglass thermal
insulation for minimum heat loss.
Jacket
The tough, black, 105°C rated, fame-resistant PVC
(FR PVC) jacket protects the tubing against corrosive
atmospheres, water, oils, acids, alkalies and most
chemicals. Additional jacket materials are available
upon request. For Material Specifcations of jackets,
see Technical Data section of the catalog. Consult
Division for additional details.
Testing
Each tube in every length of Parker Temptrace ®
is pressure tested prior to shipment to assure the
instrument engineer a high quality, reliable, trouble-
free product. For Testing Specifcations, see Technical
Data Section of the catalog.
Accessories
Accessories are available for connecting multiple
lengths of steam trace bundles and sealing bundle
ends.
NOTE: It is absolutely necessary to seal the ends against
contamination from moisture and/or corrosive liquids. Parker
Hannifn cannot assume any liability for product damage caused by
moisture from unsealed ends.
Maximum Internal Exposure Temperature up to 400°F (204°C)