Product Model UOLEN®40
Operating Temperature Range: -40°C to 250°C(-40°F to 482°F)

UOLEN®40 is a synthetic hydrocarbons heat transfer fluid, delivering excellent low-temperature fluidity and outstanding high-temperature thermal stability. UOLEN®40 delivers the widest process temperature range and broadest industry applicability in high and low temperature applications. As a premium heat transfer fluid, it is ideally suited for closed-loop systems requiring rapid heat exchange across a wide temperature range from -40°C to 250°C (-40°F to 482°F).


Product Features
  • Colorless, excellent light transmittance
  • Odorless, eco-friendly and comfortable to operate
  • High thermal stability, long service life
  • Low kinematic viscosity at low temperatures, good fluidity
  • Suitable for closed-loop temperature control systems
Working Temperature Range

UOLEN®40 fluid has a temperature range of –40°C to 235°C (-40°F to 455°F)

without overpressure or up to 250°C (482°F) with appropriate level of system pressurization.

Application Fields

Laboratory research, petrochemical Industry, biopharmaceutical, pesticide synthesis,

 food processing, HVAC, cold storage, automotive, aerospace, and other fields.

Applicable Equipment
High/low temperature circulation units , jacketed glass reactors, enamel reactors, freeze dryers, TCU temperature control units, oil bath equipment, refrigeration units , thermal oil heaters , mold temperature controllers, aerospace testing equipment, automotive component testing systems.
Productpackaging
10L, 25L, 200L, and 1000L drums.
Specifications
Item Characteristic Parameter
Appearance Colorless transparent liquid
Composition Synthetic hydrocarbons
Density (at 20°C/68°F) 0.768g/cm³
Moisture content, max. 100 ppm
Flash point 100°C(212°F)
Autoignition temperature 352°C(665.6°F)
Viscosity -50°C(-58°F) 70.81mm²/s
-40°C(-40°F) 27.62mm²/s
-20°C(-4°F) 12.98mm²/s
40°C(104°F) 2.11mm²/s
Pour point <-65°C(-85°F)
Specific heat (at 100°C/212°F) 2.39 KJ/(kg·k)
Thermal conductivity (at 100°C/212°F) 0.1143(w/m·k)
Average boiling point 241°C(410°F)
Total acidity <0.01mg/kg(KOH)
Sulfur content <10 ppm
Chlorine content <10ppm
Copper strip corrosion (at 100°C/212°F,3h) <1a
Expansion coefficient (at 100°C/212°F) 0.000733K
Max. bulk temperature 250°C(482°F)
Max. film temperature 275°C(527°F)
*The above data are obtained from laboratory tests on samples and may vary between batches.

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