Paratherm™ GLT Heat Transfer Fluid

Paratherm™ GLT Heat Transfer Fluid

Thermally Stable • Low-Temperature Start-Up

The Paratherm GLT heat transfer fluid is an alkylated aromatic based heat transfer fluid formulated for closed-loop liquid-phase heating systems to 287°C.

Applications Include…

  • Gas processing
  • Liquid terminal tank heating
  • Asphalt plants
  • Plastic production
  • Thermally Stable

Thermally Stable

Paratherm GLT Heat Transfer Fluid exhibited almost 40% less degradation when exposed to 316°C for 500 hours than a widely used competitive fluid. Although very few heaters expose the fluid to the maximum film temperature for extended periods, this level of stability helps insure that your system operates trouble free during operating upsets.

Low Temperature Capability

Minimum startup temperature is a realistic measure of a fluid’s low temperature capability since 300 cps is the maximum viscosity that a centrifugal pump can handle. Paratherm GLT Heat Transfer Fluid has a lower minimum start-up temperature -6°C than any mineral-oil based fluids that cover a similar temperature range.

Typical Properties*

Chemical Name Alkylated Aromatic
Appearance  Clear Amber Coloured
Odour Sweet
Maximum Recommended Film Temperature 316°C / 600°F
Maximum Recommended Operating Temperature 288°C / 550°F
Minimum Operating Temperature 20mPa-s (20 cPs) 35°C / 95°F
Minimum Start-Up Temperature 300mPa-s (300 cPs) -8°C /17°F
Viscosity @ 15.5°C / 60°F mm2//sec (cSt) 63
Density @ 15.5°C / 60°F kg/m3 (lb/gal) 880 (7.4)
Flash Point Pensky-Martens Closed Cup (D93) >340°C (171°F)
Boiling Point (101 kPa/14.7 psia) >371°C (700°F)
Vapour Pressure @ maximum Operating Temp. kPa (psia) 25 (3.5)
% Volume expansion over recommended operation temperature per 100°C (°F) 10.8 (6.0)
Average Molecular Weight 330

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