Duratherm HF-FG
A food grade heat transfer oil rated to 338°C (640°F), Duratherm HF-FG is specifically engineered for process heating and cooling applications that need the added safety of a high flash point. Economical and thermally stable, it meets USDA requirements for incidental food contact, is NSF registered HT1, and meets the requirements of 21 CFR 178.3570.
Max. Operating Temp
338°C (640°F)
Features
- Food grade – Kosher, NSF registered and meets FDA 21 CFR 178.3570
- 277°C (530°F) flash point, the highest rating of any food grade heat transfer oil
- 338°C (640°F) maximum operating temperature
- Engineered for use in a wide variety of food and beverage applications
- Runs cleaner with an extended service life
Temperature Ratings
| Max Bulk/Use Temp | 640°F |
| Max Film Temp | 680°F |
| Pour Point ASTM D97 | 15°F |
Safety Data
| Flash Point ASTM D92 | 530°F |
| Fire Point ASTM D92 | 582°F |
| Autoignition ASTM E-659-78 | 740°F |
Physical Properties
Viscocity ASTM D445
cSt
| 120°F | 68.2 |
| 500°F | 1.5 |
| 640°F | 0.9 |
Density ASTM D1298
lb/ft³
| 120°F | 53.4 |
| 500°F | 48.6 |
| 640°F | 46.8 |
Vapor Pressure ASTM D2879
psia
| 120°F | 0 |
| 500°F | 0.22 |
| 640°F | 5.34 |
Distillation Range ASTM D2887
| 10% | 834°F | 90% | 1030°F |
| Molecular Weight | 399 |
| Specific Gravity @ 60°F | .867 |
Thermal Properties
Thermal Expansion Coefficient
0.0562%/°F
Thermal Conductivity
BTU/hr·ft·F°
| 120°F | 0.086 |
| 500°F | 0.084 |
| 640°F | 0.083 |
Heat Capacity
BTU/lb F
| 120°F | 0.453 |
| 500°F | 0.542 |
| 640°F | 0.575 |