UOLEN70
Product Model UOLEN®70
Operating Temperature Range: -70°C to 280°C(-94°F to 536°F)
UOLEN®70 is a modified Silicone Oil specically engineered for integrated cooling and heating applications. It is designed for closed-loop cold and heat circulation systems, enabling rapid heating and cooling cycles with efficient heat exchange performance across a broad temperature range of -70°C to 280°C (-94°F to 536°F). This fluid exhibits exceptional high-temperature stability, low kinematic viscosity at low temperatures, high smoke point, colorlessness, odorlessness, and strong oxidation resistance. It is also suitable for open constant-temperature systems operating at low temperatures. As an indirect heat transfer fluid for temperature control systems, UOLEN®70 is widely used in specialized applications, such as, food freeze-drying, aviation testing, pharmaceutical manufacturing, and chemical industry.
UOLEN70
Product Features
  • Colorless,excellent light transmittance
  • Odorless,eco-friendly and comfortable to operate
  • High thermal stability,long service life
  • Extremely low pour point,low kinematic viscosity at low temperatures,good fluidity
  • Ultra-wide temperature range for use,compatible with both high and low temperatures
Working Temperature Range
-70°C to 280°C (-94°F to 536°F)
Application Fields

Experimental research, petrochemicals , biopharmaceuticals, pesticide synthesis, 

food processing, air conditioning, 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, constant temperature bath equipment, freezer unit equipment, 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 Silicone oils
Density (at 20°C/68°F) 0.916g/cm³
Moisture content, max. 100 ppm
Flash point >130°C(266°F)
Auto-ignition point 350°C(662°F)
Viscosity -70°C(-94°F) 80.49mm²/s
-60°C(-76°F) 50.22mm²/s
-50°C(-58°F) 31.32mm²/s
Pour point <-90°C(-130°F)
Specific heat (at 100°C/212°F) 1.636KJ/(kg·k)
Thermal conductivity (at 20°C/68°F) 0.135(w/m·k)
Normal boiling point >250°C(482°F)
Total acidity <0.01mg/kg(KOH)
Sulfur content <10ppm
Chlorine content <10 ppm
Copper strip corrosion (at 100°C/212°F,3h) <1a
Expansion coefficient (at 100°C/212°F) 0.00105K
Pumpability performance 300mm²/s >-80°C(-112°F)
Maximum allowable temperature 280°C(536°F)
Maximum allowable film Temperature 300°C(572°F)
*The above data are obtained from laboratory tests on samples and may vary between batches.

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  • Email : sales@uolen-online.com

  • Add : 1177 Yunlian South Road, WujiangDistrict, Suzhou City, Jiangsu Province, China

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