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Duratherm 450-FG

A food grade thermal fluid rated to 233°C (450°F), Duratherm 450-FG is made for applications in the food industry that need both process heating and cooling. Cost effective and stable across a wide temperature range, it meets USDA’s standards for incidental food contact, is NSF registered as HT1, and meets the requirements of 21 CFR 178.3570.

  • Food grade thermal fluid made for both heating and cooling cycles
  • Kosher, NSF registered and meets FDA 21 CFR 178.3570
  • 233°C (450°F) maximum operating temperature
  • Pumpable down to -45°C (-49°F)
  • Provides excellent resistance to oxidation for a longer service life
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 233°C
Max Film Temp. 255°C
Pour Point ASTM D445 -45°C

Safety Data

Flash Point ASTM D92 150°C
Fire Point ASTM D92 164°C
Autoignition ASTM E-659-78 330°C

Thermal Properties

Thermal Expansion Coefficient 0.0564 %/°C
Thermal Conductivity W/m·K
-40°C 0.147
-18°C 0.147
38°C 0.142
100°C 0.138
204°C 0.13
Heat Capacity kJ/kg·K
-40°C 1.905
-18°C 1.974
38°C 2.144
100°C 2.331
204°C 2.649

Physical Properties

Viscosity ASTM D445 cSt
-40°C 104
-18°C 29.81
40°C 4.62
100°C 1.78
204°C 0.77
Density ASTM D1298 kg/l
-40°C 0.906
-18°C 0.891
38°C 0.852
100°C 0.81
204°C 0.739
Vapor Pressure ASTM D2879 kPa
-40°C 0
-18°C 0
38°C 0.552
100°C 1.475
204°C 11.597
Distillation Range ASTM D2887
10% 263°C
90% 509°C
Molecular Weight 372

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 450°F
Max Film Temp. 490°F
Pour Point ASTM D445 -49°F

Safety Data

Flash Point ASTM D92 302°F
Fire Point ASTM D92 327°F
Autoignition ASTM E-659-78 625°F

Thermal Properties

Thermal Expansion Coefficient 0.1015 %/°F
Thermal Conductivity BTU/hr·ft·F°
-40°F 0.085
0°F 0.085
100°F 0.082
212°F 0.08
399°F 0.075
Heat Capacity BTU/lb·F°
-40°F 0.455
0°F 0.472
100°F 0.512
212°F 0.5568
399°F 0.6326

Physical Properties

Viscosity ASTM D445 cSt
-40°F 104
40°F 11.95
100°F 4.84
Density ASTM D1298 lb/ft³
-40°F 56.53
0°F 55.58
100°F 53.21
212°F 50.562
399°F 46.124
Vapor Pressure ASTM D2879 psia
-40°F 0
0°F 0
100°F 0.08
212°F 0.214
399°F 1.682
Distillation Range ASTM D2887
10% 505°F
90% 947°F
Molecular Weight 372

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

Duratherm 450-FG