PRODUCTS

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.

  • 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
Standard
Metric

Temperature Ratings

Max Bulk/Use Temp 327°C
Max Film Temp. 355°C
Pour Point ASTM D445 -17°C

Safety Data

Flash Point ASTM D92 227°C
Fire Point ASTM D92 242°C
Autoignition ASTM E-659-78 362°C

Thermal Properties

Thermal Expansion Coefficient 0.0564 %/°C
Thermal Conductivity W/m·K
38°C 0.144
100°C 0.14
204°C 0.133
260°C 0.13
288°C 0.13
316°C 0.128
Heat Capacity kJ/kg·K
38°C 1.968
100°C 2.172
204°C 2.515
260°C 2.696
288°C 2.788
316°C 2.881

Physical Properties

Viscosity ASTM D445 cSt
40°C 40.35
100°C 6.51
204°C 1.56
260°C 1.03
288°C 0.88
316°C 0.76
Density ASTM D1298 kg/l
38°C 0.845
100°C 0.803
204°C 0.733
260°C 0.695
288°C 0.676
316°C 0.658
Vapor Pressure ASTM D2879 kPa
38°C 0
100°C 0
204°C 0.4
260°C 2.62
288°C 5.516
316°C 10.894
Distillation Range ASTM D2887
10% 383°C
90% 494°C
Molecular Weight 395
Specific Gravity @ 16°C 0.863

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 620°F
Max Film Temp. 670°F
Pour Point ASTM D445 1°F

Safety Data

Flash Point ASTM D92 440°F
Fire Point ASTM D92 466°F
Autoignition ASTM E-659-78 682°F

Thermal Properties

Thermal Expansion Coefficient 0.1015 %/°F
Thermal Conductivity BTU/hr·ft·F°
100°F 0.083
212°F 0.081
399°F 0.077
500°F 0.075
550°F 0.075
Heat Capacity BTU/lb·F°
100°F 0.47
212°F 0.5188
399°F 0.6006
500°F 0.644
550°F 0.666

Physical Properties

Viscosity ASTM D445 cSt
40°F 308.34
100°F 44.44
260°F 3.96
Density ASTM D1298 lb/ft³
100°F 52.73
212°F 50.122
399°F 45.754
500°F 43.4
550°F 42.23
Vapor Pressure ASTM D2879 psia
100°F 0
212°F 0
399°F 0.058
500°F 0.38
550°F 0.8
Distillation Range ASTM D2887
10% 721°F
90% 921°F
Molecular Weight 395
Specific Gravity @ 60°F 0.863

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

Duratherm FG