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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

TDS
(Technical Data Sheet)

SDS
(Safety Data Sheet)

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Standard

Metric

Temperature Ratings
Max Bulk/Use Temp	327°C
Max Film Temp.	354°C
Pour Point ASTM D97	-17°C

Safety Data
Flash Point ASTM D92	227°C
Fire Point ASTM D92	241°C
Autoignition ASTM E-659-78	361°C

Thermal Properties
Thermal Expansion Coefficient	0.1016 %/°C
Thermal Conductivity	W/m·K
38°C	0.144
100°C	0.140
204°C	0.133
204°C	0.133
260°C	0.130
288°C	0.130
316°C	0.128
Heat Capacity	kJ/kg·K
38°C	1.968
100°C	2.172
204°C	2.515
204°C	2.516
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
204°C	1.55
260°C	1.03
288°C	0.88
316°C	0.76
Density ASTM D1298	kg/l
38°C	0.85
100°C	0.80
204°C	0.73
204°C	0.73
260°C	0.70
288°C	0.68
316°C	0.66
Vapor Pressure ASTM D2879	kPa
38°C	0.00
100°C	0.00
204°C	0.40
204°C	0.41
260°C	2.62
288°C	5.52
316°C	10.89
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	0.0564 %/°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	0.470
212°F	0.519
399°F	0.601
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	50.12
399°F	45.75
500°F	43.40
550°F	42.23
Vapor Pressure ASTM D2879	psia
100°F	0.00
212°F	0.00
399°F	0.06
500°F	0.38
550°F	0.80
Distillation Range ASTM D2887
10%	721°F
90%	921°F
Molecular Weight	395
Specific Gravity @ 60°F	0.863