PRODUCTS

Duratherm HF-FG

A food grade heat transfer oil rated to 277°C (530°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.

  • 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
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 338°C
Max Film Temp. 360°C
Pour Point ASTM D445 -9°C

Safety Data

Flash Point ASTM D92 277°C
Fire Point ASTM D92 306°C
Autoignition ASTM E-659-78 394°C

Thermal Properties

Thermal Expansion Coefficient 0.1012 %/°C
Thermal Conductivity W/m·K
38°C 0.149
204°C 0.145
260°C 0.145
288°C 0.144
316°C 0.144
332°C 0.144
Heat Capacity kJ/kg·K
38°C 1.876
204°C 2.168
260°C 2.269
288°C 2.319
316°C 2.366
332°C 2.394

Physical Properties

Viscosity ASTM D445 cSt
40°C 104.26
100°C 12.46
260°C 1.47
288°C 1.22
316°C 1.04
332°C 0.96
Density ASTM D1298 kg/l
38°C 0.86
204°C 0.80
260°C 0.78
288°C 0.77
316°C 0.76
332°C 0.75
Vapor Pressure ASTM D2879 kPa
38°C 0.00
204°C 0.14
260°C 1.52
288°C 4.21
316°C 12.00
332°C 24.60
Distillation Range ASTM D2887
10% 446°C
90% 555°C
Molecular Weight 399

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

Temperature Ratings

Max Bulk/Use Temp 640°F
Max Film Temp. 680°F
Pour Point ASTM D445 15°F

Safety Data

Flash Point ASTM D92 530°F
Fire Point ASTM D92 582°F
Autoignition ASTM E-659-78 740°F

Thermal Properties

Thermal Expansion Coefficient 0.0562 %/°F
Thermal Conductivity BTU/hr·ft·F°
100°F 0.086
399°F 0.084
500°F 0.084
550°F 0.083
630°F 0.083
Heat Capacity BTU/lb·F°
100°F 0.448
399°F 0.518
500°F 0.542
550°F 0.554
630°F 0.572

Physical Properties

Viscosity ASTM D445 cSt
40°F 1,076.69
100°F 116.57
260°F 7.00
Density ASTM D1298 lb/ft³
100°F 53.63
399°F 49.83
500°F 48.55
550°F 47.92
630°F 46.91
Vapor Pressure ASTM D2879 psia
100°F 0.00
399°F 0.02
500°F 0.22
550°F 0.61
630°F 3.66
Distillation Range ASTM D2887
10% 834°F
90% 1030°F
Molecular Weight 399

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

Duratherm HF-FG