Sinopec Great Wall L-QC320 Mineral Heat Transfer Oil 320°C Anti Coking Thermal Fluid

Sinopec Great Wall L-QC320 Mineral Heat Transfer Oil 320°C Anti-Coking Thermal Fluid

Sinopec Great Wall L-QC320 Mineral Heat Transfer Oil

Sinopec Great Wall L-QC320 Mineral Heat Transfer Oil is formulated from highly refined, narrow distillation range mineral base oils, compounded with specialized clean-dispersant and high-temperature oxidation-resistant additives. It is designed to carry heat reliably in closed loop systems with a maximum bulk oil temperature of 320°C, where thermal stability and anti-coking behaviour decide how long the fluid and the system will last.

The narrow distillation range gives the oil a high initial boiling point, so it holds its performance even when the system runs hot for long periods. Strong high-temperature oxidation stability slows ageing, while low volatility and a high flash point keep operation safe and limit oil consumption. High specific heat capacity and good heat transfer efficiency let the fluid move heat evenly, and outstanding anti-coking performance stops carbon and sludge from building up on pipes and heater surfaces. Good low-temperature fluidity makes cold start-up easy, and the oil stays non-corrosive to common system metals and seals. The product conforms to GB 23971-2009 (L-QC320).

Technical Parameters

Key Advantages

• Narrow Distillation Range: High initial boiling point for stable high-temperature performance.
• High-Temperature Oxidation Stability: Resists ageing for extended service life.
• Low Volatility and High Flash Point: Safe operation with lower oil consumption.
• Efficient Heat Transfer: High specific heat capacity moves heat evenly through the loop.
• Anti-Coking: Prevents carbon and sludge deposits on heater and pipe surfaces.
• Low-Temperature Fluidity: Easy cold start-up in cold climates.
• Material Compatibility: Non-corrosive to common metals and seals.

Application Fields

• Closed heat transfer systems with a maximum bulk oil temperature of 320°C.
• Petrochemical processing units.
• Synthetic fiber and synthetic resin production lines.
• Pharmaceutical manufacturing heating circuits.
• Textile printing and dyeing equipment.
• Large-scale industrial heating installations.

Product Q&A

Q: What makes L-QC320 suitable for 320°C service?
A: The fluid is built from a narrow distillation range base oil with a high initial boiling point and high-temperature oxidation resistance, so it holds its properties in closed systems with a maximum bulk oil temperature of 320°C.

Q: How does anti-coking performance help my system?
A: Anti-coking additives keep carbon and sludge from forming on heater tubes and pipe walls. A clean loop transfers heat better, needs less maintenance and keeps the fluid working longer.

Q: Can this heat transfer oil be used in cold climates?
A: Yes. The oil has excellent low-temperature fluidity, so pumps move it easily and the system starts without difficulty even when ambient temperatures are low.

Q: Which industries use this thermal fluid?
A: It suits petrochemical, synthetic fiber, synthetic resin, pharmaceutical, textile printing and dyeing processes, and large-scale heating installations that need stable high-temperature heat.

As a long-term supplier of Sinopec Great Wall heat transfer oil, we support OEM, bulk and private-label requirements and can ship in 200L galvanized drums, 1000L IBC totes or ISO tanks. Please contact us for specifications, samples and a quotation for your L-QC320 thermal fluid requirement.