Product Model UOLEN®330
Operating Temperature Range: -15°C to 330°C(5°F to 626°F)
UOLEN®330 is a pure synthetic heat transfer fluid. It exhibits excellent low-temperature fluidity, low pour point, high specific heat capacity, and superior heat transfer efficiency. Classified as a dual-phase (liquid/vapor) heat transfer fluid for closed-loop circulation, it operates effectively across wide temperature ranges. It enables rapid heating and cooling cycles within the range of -15°C to 330°C(5°F to 626°F), ensuring efficient heat exchange performance in both liquid and vapor phases.
Product Features
  • Colorless transparent liquid
  • Suitable for closed-loop system equipment
  • Excellent thermal stability,maximum service temperature resistance up to 330°C(626°F)
  • Freezing point below-50°C(-58°F),low kinematic viscosity at low temperatures,and good fluidity for low-temp.pump startup
  • 3-5 times longer fluid life than that of mineral-based heat transfer fluid
Working Temperature Range

UOLEN®330 fluid has a temperature range of ‒15°C to 290°C (5°F to 554°F) 

without overpressure or up to 330°C (626°F) with appropriate level of system pressurization

Application Fields
Experimental research, petrochemicals, biopharmaceuticals, pesticide synthesis and other fields.
Applicable Equipment
Thermal oil heaters,enamel reactors,high/low temperature circulation units,and mold temperature controllers.
Productpackaging
10L,25L,200L,and 1000L drums.
Specifications
Item Characteristic Parameter
Appearance Colorless transparent liquid
Density (at 20°C/68°F) 0.996g/cm³
Moisture content, max. <100ppm
Flash point >140°C(284°F)
Auto-ignition point 480°C(896°F)
Viscosity -15°C(5°F) 195mm²/s
-10°C(14°F) 16.5mm²/s
0°C(32°F) 6.8mm²/s
20°C(68°F) 4.0mm²/s
Pour point <-50°C(-58°F)
Specific heat (at 100°C/212°F) 1.598KJ/(kg·k)
Thermal conductivity (at 20°C/68°F) 0.134(w/m·k)
Normal boiling point >291°C(555.8°F)
Total acidity <0.01mg/kg(KOH)
Sulfur content <10ppm
Chlorine content <10ppm
Copper strip corrosion (at 100°C/212°F,3h) <1a
Expansion coefficient (at -20°C to 300°C)/(at -4°C to 572°C) 0.00091K
Max. bulk temperature 330°C(626°F)
Max. film temperature 360°C(680°F)
*The above data are obtained from laboratory tests on samples and may vary between batches.

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