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Heat Transfer Fluids

For non-pressurized closed-loop thermal systems

Paratherm™ HE HTF

ECONOMICAL CONTINUOUS SERVICE

Paratherm HE heat transfer fluid is an economical, highly-refined, mineral-oil based heat transfer fluid formulated for service in closed-loop heat transfer systems to 600°F.

OPERATING RANGE

Minimum Startup Temp (300cSt)Maximum Operating Temp
37°F / 3°C630°F / 332°C

FEATURES

  • Economical workhorse formulation
  • High purity NSF HT-1 food grade heat transfer fluid
  • High flash/boiling points

APPLICATIONS INCLUDE

PRESENTATIONS AVAILABLE

  • Bulk in Tankwagons and Flexitanks
  • 1000-liter totes
  • 55-gallon (208-liter) drums
  • 5-gallon (20-liter) Poly Pails

LACK OF COLOR DOES MAKE A DIFFERENCE

As shown by its almost water-white appearance, Paratherm HE Heat Transfer Fluid has an extremely low level of impurities. This is the result of the extended processing required to achieve it’s HT1 Rating-approved for incidental food contact by NSF-which removes the impurities that can catalyze fluid degradation. These impurities (such as aromatics, asphaltenes, and sulfur-bearing compounds) give lesser quality mineral-oil based fluids a slight to moderate yellow color.

LOW VAPOR PRESSURE EQUALS GREATER STABILITY IN VENTED EXPANSION TANKS

Any vapors that are given off by a heat transfer fluid inside a vented expansion tank will react with air to produce the acids that eventually can cause sludge formation and fluid gelling. The higher the vapor pressure, the more vapor is produced and the greater the rate of oxidation. Paratherm HE Heat Transfer Fluid has a negligible vapor pressure that produces almost no reaction with air in vented expansion tanks.

Mobile users view full PDF here: HE-Bulletin_Mar2022.pdf

Mobile users view full PDF here: PARATHERM-HE-SDS.pdf

TYPICAL PROPERTIES*

Chemical NameHydrotreated heavy paraffinic distillate
AppearanceAlmost water white liquid
OdorOdorless
Maximimum Recommended Film Temperature650°F (343°C)
Maximimum Recommended Operating Temperature600°F (310°C)
Maximimum Operating Temperature 20 cPs (20 mPa-s)127°F (53°C)
Minimum Start-up Temperature 300 cPs (300 mP-s)37°F (3°C)
Viscosity at 60°F/15.5°C cSt (mm2/sec)145
Density at 60°F/15.5°C lb/gal (kg/m3 )7.3 (866)
Flash Point Pensky-Martens Closed Cup(D93)>410°F (210°C)
Boiling Point (14.7 psia/101 kPa)>700°F (371°C)
Vapor Pressure @ max operating temp psia (kPa)1.0 (7.0)
% Volume expansion over recommended operating temperature per 100°F (100°C)5.2 (9.4)
Average Molecular Weight445
Heat Of Combustion (approximate) BTU/lb (kJ/kg)20,000 (46,300)
Heat Of Vaporization (approximate) BTU/lb (kJ/kg)77 (178)

Mobile users view full PDF here: HE-Case-History.pdf

PARATHERM HEAT TRANSFER FLUIDS

 UnitsHR™NF©HE©OR©MR™LR™CR™
Critical Temperature,
Tc(Calculated)
146514531580152413581174 1168
100599311201064899714709
K814807878847755652649
Critical Pressure,
Pc(Calculated)
ATM18.711.126.513.312.910.728.6
PSIA274163389196190157421
Critical Volume,
Vc(Calculated)
cm3/g-mole8161579 72013809871327493
ft3/lb0.0370.0720.0330.0630.0450.060.023
Heat of Vaporization,
DH vap
BTU/lb110917793115113148
Molecular Weight avgMW239350445360230160133
Constants: k=Cp/Cv = 1.01 | C’ = 316.5 | R = 82.06 cm3*atm/mol*K | Fb = 1.0

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