Synthetic aromatic heat transfer fluids continue to hold an important place in liquid heat transfer systems. In our view, synthetics are
best specified where natural fluids cannot function: system temperatures at or above 600°F, below room temperature, and, if they
are able, where the vapor phase is required.
Below are some of the reasons you might consider a natural heat transfer fluid like the Paratherm
HE® high-efficiency fluid.
Lower Cost
Generally, purchase cost of synthetic fluids ranges from slightly (10% to 25%) to substantially (2 to 4 times) higher than the HE fluid. Cost of handling and disposal can be substantially higher.
Longer Fluid Life
Any heat transfer fluid when properly specified and operated within its capabilities, can provide good service for extended periods of
time. However, oxidation, overheating and system contamination can cut this life dramatically. The Paratherm
HE is a most forgiving
fluid, and can provide a service life equal to or greater than many synthetics.
Human Safety
While most synthetic fluids are at least moderately toxic, the HE fluid is not toxic. Material Safety Data Sheets for synthetic
aromatic fluids indicate that small quantities of benzene gas may form in the expansion tank when these fluids are overheated. And in
thermal oil systems, overheating unfortunately does happen.
If you use aromatic fluids, we strongly recommend that you take steps to vent the expansion tank outside, to atmosphere. You might wish to
review the fluid's MSDS for toxicity levels. Significant skin dermatitis has been reported with many synthetics.
Environmental Safety/Disposal
While no fluid should be permitted to enter the environment, mishaps can occur. Hazardous waste handling procedures must be observed in
the clean-up and disposal of synthetic fluids-including mandatory use of costly certified incinerators and landfills. (The
HE fluid has
passed rigorous Bioassay testing.)
Disposal of the HE fluid is safe and easy. It can be burned for BTU value. Or it can be combined with spent lube oils and sent to the
local recycler. Used oils destined for disposal have been declared non-hazardous by the EPA
(citation: 57FR21524). Paratherm encourages
recycling. Processing old material into another usable product helps conserve our natural resources and precious landfill space.
If a release does occur, you can use the same simple clean-up procedures for the
HE fluid as you would with light lube oils. These
include standard skimming procedures.
Less Odor
While synthetic heat transfer fluids are often reported to have moderate to a heavy (sometimes nauseating) odor that permeates and
remains in clothing, the HE fluid is virtually odorless.
Applications
The HE fluid is being successfully used in a broad variety of demanding applications-from
the heating of flatwork ironers in laundries, to control of temperatures in chemical reactors, to
platen heating in laminating presses, to the heating of viscous fluids in storage tanks and on board barges and ships (the
HE fluid
is approved by the U.S. Coast Guard).
The HE fluid is approved by virtually all thermal fluid system manufactures, and is also
recognized by U.L. (Underwriter's Laboratories No. MN17163N).
Questions? We'd like to hear from you. Call toll-free, 800-222-3611
-- or fax,
or e-mail.
Note: The information and recommendations in this literature are
made in good faith and are believed to be correct as of the below date. You, the user or specifier, should independently determine the
suitability and fitness of Paratherm heat transfer fluids for use in your specific application. We warrant that the fluids conform to the
specifications in Paratherm literature. Because our assistance is furnished without charge, and because we have no control over the
fluid's end use or the conditions under which it will be used, we make no other warranties-expressed or implied, including the
warranties of merchantability or fitness for a particular use or purpose (recommendations in this bulletin are not intended nor should
be construed as approval to infringe on any existing patent). The user's exclusive remedy, and Paratherm's sole liability is limited to
refund of the purchase price or replacement of any product proven to be otherwise than as warranted. Paratherm Corporation will not be
liable for incidental or consequential damages of any kind. Some product names of companies found in Paratherm literature are
registered trademarks. This statement is in lieu of individually noting each.
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