FRAGOLTHERM® DPO is a high-temperature-stable heat transfer fluid for use in temperature-critical systems. Typical fields of application are, for example, production of synthetic fibers and fine chemicals, Concentrated Solar Power (CSP) and plastics recycling.
Description
FRAGOLTHERM® DPO is a high-temperature-stable heat transfer fluid for use in temperature-critical systems. Typical fields of application are, for example, production of synthetic fibers and fine chemicals, Concentrated Solar Power (CSP) and plastics recycling.
FRAGOLTHERM® DPO can be used in the vapor phase as well as in the liquid phase up to 400 °C. In the liquid phase the product can be used pressureless at a temperature range between 12 °C and 257 °C and pressurised up to 400 °C. The film temperature at the heater must not exceed 430 °C.
FRAGOLTHERM® DPO crystallizes below 12 °C, but without volume expansion. On pipelines and on system components in which the fluid is not constantly flowing or where temperatures are under 12 °C, a heat tracing should be provided.
Also with use in pressureless ranges in the liquid phase a nitrogen blanket is recommended in the expansion tank, in order to prevent premature ageing.
Technical information
Maximum bulk temperature | |
---|---|
Maximum film temperature | 430°C (800°F) |
Product Normal Boil Point | 257°C (495°F) |
Product composition | Biphenyl / diphenyloxide (DPO) eutectic mixture |
Product appearance | Clear, water white liquid |
Pressurised Systems/HTF | Yes |