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Heat Transfer Oil
Heat Transfer Oil

Heat Transfer Oil

L-QB280 QB300 QC310 QC320 QD330 QD340 QD350 High temperature Antioxidant Long life

With excellent thermal stability and heat transfer performance, it resists coking under high temperatures and operates stably over long periods, suitable as a heat transfer medium for various heating systems.

Excellent thermal stability Resists coking in high-temperature environments
Excellent thermal conductivity High heat transfer efficiency
Long-Life Operation Continuous use for over one year
Antioxidant Performance Extended Service Life
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Product Description

Product Features: Blended with refined base oils, high-temperature antioxidants, and anti-coking compound additives, it offers excellent thermal stability, oxidation resistance, low-temperature fluidity, and superior thermal conductivity. Applications: Suitable for various heating processes requiring a liquid-phase heat transfer medium, such as oil boilers, oil bath furnaces, drying rooms, heat setting machines, distillation, fractionation, and reactors. Outperforms various cylinder oils, machinery oils, and dowtherm; under air-isolated conditions, the maximum operating temperatures reach 280°C, 300°C, and 320°C respectively. It features strong thermal stability, resistance to coking, and maintains excellent heat transfer performance for over one year of continuous use.

  • Refined base oil combined with high-temperature antioxidants and compound anti-coking agents
  • Good thermal stability and oxidation stability
  • Excellent thermal conductivity, efficient heat transfer
  • Low coking tendency, maintains good performance long-term
Engine oil filling scenario illustration

Product Specifications

GB23971-2009
Item Grade   L-QB280 L-QB300 L-QC320 Test Method
Appearance Clear and transparent, no suspended matter Visual
Kinematic Viscosity (50°C), mm²/s 27.8 29 31.4 GB/T265
Pour Point, °C, not higher than -9 -9 -9 GB/T510
Flash Point (Closed Cup), °C, not lower than 100 100 100 GB/T267
Acid Value, mgKOH/g, not more than 0.05 0.05 0.05 GB/T264
Corrosion Test (Copper Plate, 100°C, 3h), not more than 1 1 1 GB/T5096
Water-Soluble Acids or Alkalis None GB/T0259