- "We have had no issues with Duratherm versus the old oil we were using." — J. Cowger Jr.
- "This will definitely be my go-to fluid for future projects." — Ryan Seward
- "Duratherm HF has been performing remarkably well." — Raghu Kamath
- "We’ve been using Duratherm G in our application with nothing but praise!" — Steve Shipman
- "The difference between Calflo and Duratherm was amazing." — J. Gerbec
- "Duratherm 600 is the best fluid we’ve ever used!" — John Wanninger
- "The fluid is working better than expected." — Dick Livingston
- "I would highly recommend this product over any other heat transfer fluid." — J. Cowger Jr.
- "We have increased the time between oil changes and nearly eliminated any issues." — J. Smith
- "Duratherm is working great." — K. Rose
- "The fluid is still clear … I can see the bottom of the tanks." — S. Bailey Sr.
- "I commend you on the quality and longevity of your products." — H. Blair
- "I've even recommended Duratherm to the equipment manufacturer." — Ed Slack
- "These products performed exceptionally well for us." — S. Poletto
- "Duratherm provides excellent heat transfer characteristics." — Ryan Seward
- "Duratherm does not sludge up at all." — Bill Corbett
- "Duratherm G is working excellently!" — Ian Smiley
- "So far we have not seen any of the issues we have encountered in the past!" — Steve Shipman
- "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 saves money in the long run." — J. Smith
- "Yet another bonus was that the pricing was below comparable fluids." — S. Bailey Sr.
- "The heat transfer works better than any of the other fluids we have tried." — Lars Hvalby
- "Our oxidation problems have disappeared." — H. Blair
- "Duratherm XLT-120 is exactly what we needed!" — Luke Colby
- "Duratherm was one of the best moves we made. Working great!" — Neil McDivitt
- "This stuff is pretty amazing." — Ryan Seward
- "Duratherm is working great." — J. Cowger Jr.
- "I've had zero failures in over a year-and-a-half since using Duratherm." — R. Barnett
Duratherm FG is rated for use up to 620°F and is engineered and manufactured to comply with the demands of food grade applications.
Duratherm FG meets USDA requirements for incidental food contact and NSF registered HT1 and meets the requirements of 21CFR1783570.
This fluid is ideal for any application requiring food grade rated process oils such as food processing, bottling, food packaging, etc.
Our exclusive additive package, including a proprietary dual-stage antioxidant, ensures long, trouble-free operation. Duratherm also incorporates metal deactivators, a seal and gasket extender, and defoaming and particle suspension agents.
In the heat transfer fluid industry, cost is always a concern. However fluid longevity and resistance to harmful fouling are of equal importance.
Air contact is normally detrimental to a fluid. Oxidation can cripple your system and, if left unchecked, will ultimately cause catastrophic failure. Unscheduled downtime due to oil failure has a high cost and negative effect on production.
The Duratherm product line was developed with this in mind. Most other fluids fall short in their protection from oxidation and can quickly foul a system. Duratherm is engineered to give unsurpassed levels of protection and service life.
Duratherm FG is environmentally friendly, non-toxic, non-hazardous and non-reportable. Worker health and safety is of great concern, Duratherm FG poses no ill effect to worker safety. After its long service life, it can easily be disposed of with other waste oils.
In our effort to truly service the heat transfer industry, we have developed 4 unique and specific heat transfer system cleaners. Ranging from preventative-maintenance system cleaners to emergency-downtime system revivers, we have a cleaner that fits your needs and schedule.
|Duratherm FG Properties|
|Appearance: colorless, clear and bright liquid|
|Maximum bulk/use Temp.||620°F||326°C|
|Flash Point ASTM D92||440°F||227°C|
|Fire Point ASTM D92||466°F||241°C|
|cSt at 104°F / 40°C||40.4|
|cSt at 100°C / 212°F||6|
|cSt at 600°F / 316°C||0.7|
|Pour Point ASTM D97||1°F||-17°C|
|at 100°F / 38°C||52.8||0.845|
|at 500°F / 260°C||43.4||0.695|
|at 600°F / 316°C||41.2||0.659|
|Average Molecular Weight||395|
|Carbon ResidueASTM D189A||0.005||% Mass|
|Sulphur ContentX-RAY||<.001||weight %|
|CU Strip CorrosionASTM D130||1a|
|Thermal Expansion Coefficient||0.0564 %/°C||0.1016 %/°F|
|Thermal Conductivity||BTU/hr F ft||W/m K|
|at 100°F / 38°C||0.082||0.141|
|at 500°F / 260°C||0.075||0.129|
|at 600°F / 316°C||0.074||0.128|
|Heat Capacity||BTU/lb F||kJ/kg K|
|at 100°F / 38°C||0.471||1.971|
|at 500°F / 260°C||0.646||2.704|
|at 600°F / 316°C||0.686||2.872|
|Vapor PressureASTM D2879||psi||kPa|
|at 100°F / 38°C||0.00||0.00|
|at 500°F / 260°C||0.39||2.68|
|at 600°F / 316°C||1.64||11.30|
|Distillation RangeASTM D2887||10%||769°F (410°C)|
*The values quoted in the table above are typical of normal production. They do not constitute a specification.
Heat Transfer Fluid Basics
- Understanding Fluid Degradation
- Understanding Flash, Fire and Auto Ignition Points
- Avoiding Oxidation and Thermal Degradation
Selecting a Fluid
- Thermal Fluid Selection Guide for Systems Under 250 Gallons
- Thermal Fluid Selection Guide for Systems Over 250 Gallons
- Open Baths and Heat Transfer Fluids