Paratherm™ HE Heat Transfer Fluid

Paratherm™ HE Heat Transfer Fluid

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 310°C.

  • Continuous service to 310°c
  • High flash/fire point
  • Extended life in vented systems
  • Safe to use, easy disposal

Applications Include:

  • Municipal Sludge Dryers
  • Thermal oil heated laundries
  • Asphalt plants and terminals
  • Continuous chemical processing

Presentations Available:

  • Bulk in Tankwagons and Flexitanks
  • 1000-litre totes
  • 208-litre drums
  • 20-litre Poly Pails

Lack of colour does make a difference

As shown by its almost water-white appearance, Paratherm HE 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 sulphur bearing compounds) give lesser quality mineral-oil based fluids a slight to moderate yellow colour.

Low vapour pressure equals greater stability in vented expansion tanks

Any vapours 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 vapour pressure, the more vapour is produced and the greater the rate of oxidation. Paratherm HE has a negligible vapour pressure that produces almost no reaction with air in vented expansion tanks.

TYPICAL PROPERTIES*

Chemical Name Hydrotreated heavy paraffinic distillate
Appearance Almost water white liquid
Odour Odourless
Maximimum Recommended Film Temperature 343°C (650°F)
Maximimum Recommended Operating Temperature 310°C (590°F)
Maximimum Operating Temperature 20 mPa-s (20 cPs) 53°C (127°F)
Minimum Start-up Temperature 300 mP-s (300 cPs) 3°C (37°F)
Viscosity at 15.5°C/60°F mm2/sec (cSt) 145
Density at 15.5°C/60°F kg/m3 (lb/gal ) 866 (7.3)
Flash Point Pensky-Martens Closed Cup(D93) >210°C (410°F)
Boiling Point (101 kPa/14.7 psia) >371°C (700°F)
Vapour Pressure @ max operating temp kPa (psia) 7.0 (1.0)
% Volume expansion over recommended operating temperature per 100°C (100°F) 9.4 (5.2)
Average Molecular Weight 445
Heat Of Combustion (approximate) kJ/kg (BTU/lb) 46,300 (20,000)
Heat Of Vapourization (approximate) kJ/kg (BTU/lb) 178 (77)

Paratherm Heat Transfer Fluids

Critical Temperature, Tc(Calculated)

Units

HR™

NF©

HE©

OR©

MR™

LR™

CR™

ºR

1465

1453

1580

1524

1358

1174

1168

ºF

1005

993

1120

1064

899

714

709

K

814

807

878

847

755

652

649

Critical Pressure, Pc(Calculated)

Units

HR™

NF©

HE©

OR©

MR™

LR™

CR™

ATM

18.7

11.1

26.5

13.3

12.9

10.7

28.6

PSIA

274

163

389

196

190

157

421

Critical Volume, Vc(Calculated)

Units

HR™

NF©

HE©

OR©

MR™

LR™

CR™

cm3/g-mole

816

1579

720

1380

987

1327

493

ft3/lb

0.037

0.072

0.033

0.063

0.045

0.06

0.023

Heat of Vaporization,DH vap

Units

HR™

NF©

HE©

OR©

MR™

LR™

CR™

BTU/lb

110

91

77

93

115

113

148

Molecular Weight avg

Units

HR™

NF©

HE©

OR©

MR™

LR™

CR™

MW

239

350

445

360

230

160

133

Constants

k=Cp/Cv =

1.01

C’ =

316.5

R =

82.06 cm3*atm/mol*K

Fb =

1.0

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