Duratherm FG
Rated to 327°C (620°F), Duratherm FG is a thermal fluid with strong resistance to fouling for extended service and is engineered and manufactured to comply with the demands of food grade applications. Meets USDA requirements for incidental food contact (H1), meets the requirements of 21 CFR 178.3570 and is registered with the NSF HT1.
Max. Operating Temp
327°C (620°F)
Features
- Food grade – NSF registered and meets FDA 21 CFR 178.3570
- Rated to 327°C (620°F), it’s one of the highest temperature food grade thermal fluids available
- Kosher certified
- Extended service life
- Dual-stage anti-oxidant protects against oxidation
Temperature Ratings
| Max Bulk/Use Temp | 620°F |
| Max Film Temp | 670°F |
| Pour Point ASTM D97 | 1°F |
Safety Data
| Flash Point ASTM D92 | 440°F |
| Fire Point ASTM D92 | 466°F |
| Autoignition ASTM E-659-78 | 682°F |
Physical Properties
Viscocity ASTM D445
cSt
| 45°F | 251.8 |
| 115°F | 31.2 |
| 405°F | 1.5 |
| 620°F | 0.7 |
Density ASTM D1298
lb/ft³
| 45°F | 54 |
| 115°F | 52.4 |
| 405°F | 45.6 |
| 620°F | 40.6 |
Vapor Pressure ASTM D2879
psia
| 45°F | 0 |
| 115°F | 0 |
| 405°F | 0.06 |
| 620°F | 1.91 |
Distillation Range ASTM D2887
| 10% | 721°F | 90% | 921°F |
| Molecular Weight | 395 |
| Specific Gravity @ 60°F | 0.863 |
Thermal Properties
Thermal Expansion Coefficient
0.0564%/°F
Thermal Conductivity
BTU/hr·ft·F°
| 45°F | 0.084 |
| 115°F | 0.083 |
| 405°F | 0.077 |
| 620°F | 0.073 |
Heat Capacity
BTU/lb F
| 45°F | 0.446 |
| 115°F | 0.477 |
| 405°F | 0.603 |
| 620°F | 0.696 |