Heat Transfer Fluid

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Heat Transfer Fluid

Duratherm XLT-120

  • "Duratherm saves money in the long run." — J. Smith
  • "Duratherm HF has been performing remarkably well." — Raghu Kamath
  • "The fluid is working better than expected." — Dick Livingston
  • "I've had zero failures in over a year-and-a-half since using Duratherm." — R. Barnett
  • "Duratherm is the best heat transfer fluid we've ever used." — Larry Daniels
  • "A few companies along the way have been helpful, but none like Duratherm." — K. Rose
  • "Duratherm provides excellent heat transfer characteristics." — Ryan Seward
  • "Duratherm is working great." — K. Rose
  • "These products performed exceptionally well for us." — S. Poletto
  • "Duratherm G is working excellently!" — Ian Smiley
  • "We have had no issues with Duratherm versus the old oil we were using." — J. Cowger Jr.
  • "Our oxidation problems have disappeared." — H. Blair
  • "Duratherm is working great." — J. Cowger Jr.
  • "I've even recommended Duratherm to the equipment manufacturer." — Ed Slack
  • "Duratherm does not sludge up at all." — Bill Corbett
  • "Duratherm was one of the best moves we made. Working great!" — Neil McDivitt
  • "I would highly recommend this product over any other heat transfer fluid." — J. Cowger Jr.
  • "This will definitely be my go-to fluid for future projects." — Ryan Seward
  • "We have increased the time between oil changes and nearly eliminated any issues." — J. Smith
  • "The fluid is still clear … I can see the bottom of the tanks." — S. Bailey Sr.
  • "Duratherm 600 is the best fluid we’ve ever used!" — John Wanninger
  • "The difference between Calflo and Duratherm was amazing." — J. Gerbec
  • "I commend you on the quality and longevity of your products." — H. Blair
  • "Yet another bonus was that the pricing was below comparable fluids." — S. Bailey Sr.
  • "This stuff is pretty amazing." — Ryan Seward
  • "The heat transfer works better than any of the other fluids we have tried." — Lars Hvalby
  • "Duratherm XLT-120 is exactly what we needed!" — Luke Colby

Duratherm XLT-120 heat transfer fluid is engineered for long-term operation in heat transfer applications requiring precise temperature control ranging from -120°F up to 150°F (-84°C to 65°C).

Ideal for cryogenic applications, Duratherm XLT’s economical cost and wide operating temperature also makes it well-suited for heating and cooling applications found in the food processing, pharmaceutical and chemical industries.

Trouble-Free Operation

Duratherm XLT-120 heat transfer fluid does not require monitoring of concentration or additive levels.

Longevity

Duratherm XLT-120 heat transfer fluid utilizes our exclusive additive system for long-term, trouble-free operation at any temperature, high or low.

Environmental

Duratherm XLT-120 heat transfer fluid is plant- and user-friendly. Low odor, high flash point and no SARA-reportable substances make XLT the wise choice for worker health and safety.

Disposal

After its extensive service life, Duratherm XLT-120 heat transfer fluid can be disposed of through local waste oil recycling programs. Check your local regulations.

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Duratherm XLT-120 Properties
Appearance: clear liquid, slight yellow tint
Maximum bulk/use Temp. 150°F 65°C
Minimum bulk/use Temp. -120°F -84°C
Flash Point ASTM D92 120°F 49°C
Fire Point ASTM D92 140°F 60°C
Viscosity ASTM D445  
cSt at -40°F / -40°C 8.5  
cSt at 32°F / 0°C 4.5  
cSt at 150°F / 65°C 1.3
Pour Point ASTM D97 -130°F -90°C
Density ASTM D1298 lb/ft3 g/ml
at -40°F / -40°C 54.1 0.866
at 32°F / 0°C 53.5 0.856
at 150°F / 65°C 50.8 0.813
Carbon Residue ASTM D189 0.005 % Mass
Sulphur Content X-RAY <.001 weight %
CU Strip Corrosion ASTM D130 1a  
Thermal Conductivity BTU/hr F ft W/m K
at -40°F / -40°C 0.080 0.138
at 32°F / 0°C 0.079 0.136
at 150°F / 65°C 0.076 0.131
Heat Capacity BTU/lb F kJ/kg K
at -40°F / -40°C 0.460 1.925
at 32°F / 0°C 0.471 1.971
at 150°F / 65°C 0.520 2.177
Vapor Pressure ASTM D2879 psi kPa
at 60°F / 15°C 0.00 0.00
at 100°F / 38°C 0.02 0.13
at 150°F / 65°C 4.31 29.71
Distillation Range ASTM D2887 10% 181°F (83°C)
  90% 546°F (285°C)

*The values quoted in the table above are typical of normal production. They do not constitute a specification.

Technical Papers

Heat Transfer Fluid Basics

Selecting a Fluid

Using a Heat Transfer Fluid

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