FRAGOLTHERM® 680 can be used in liquid phase up to 309 °C. In pressurised systems the bulk temperature can be increased up to 360 °C. The film temperature at the heater must not exceed 390 °C.
With use in high temperature ranges a nitrogen blanket is recommended in the expansion tank, in order to prevent premature ageing.
| FRAGOLTHERM® 680 | ||||
FRAGOLTHERM® 680
FRAGOLTHERM® 680Dichte 20 °C:
Density 20 °C:
1025 kg/m³
Kin. Viskosität 40 °C:
Kin. viscosity 40 °C:
12,90 mm²/s
Pourpoint:
Pour Point:
<-38 °C
Untere Einsatzgrenze:
Minimal operating temperature:
-20 °C
Vorlauftemperatur max.:
Bulk temperature max.:
360 °C
Filmtemperatur max.:
Film temperature max.:
390 °C
Siedebeginn:
Boiling Point:
>309 °C
Flammpunkt:
Flash Point:
>139 °C
Wassergefährdungsklasse:
Water hazard classification:
2
Freigaben:
Approval:
-
|
-20 °C |
|
|
360 °C |
FRAGOLTHERM® 680 is a synthetic heat transfer fluid based on partially hydrogenated terphenyls and biphenyl/diphenyloxide.
Due to its chemical structure, FRAGOLTHERM® 680 shows a high thermal stability and thus provides a long service life.
FRAGOLTHERM® 680 is non-corrosive and is compatible with materials conventionally used in heat transfer technology.
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