Acid Value: The Invisible Benchmark of Refrigeration Oil Quality and the Protective Barrier for Equipment Lifespan

Acid Value: The "Invisible Benchmark" of Refrigeration Oil Quality and the "Protective Barrier" for Equipment Lifespan​

In refrigeration systems, the acid value of refrigeration oil is by no means an ordinary test data, but a core indicator directly related to equipment safety. Determined in accordance with two authoritative standards: GB/T4945 (Color Indicator Method) and GB/T7304 (Potentiometric Titration Method), acid value refers to the milligrams of potassium hydroxide required to neutralize acidic substances in 1 gram of oil. Its value directly reflects the refining depth and oxidation stability of the oil. Industry data shows: if the acid value of new oil exceeds 0.05mgKOH/g, it will rapidly corrode metal components of compressors in a water-containing environment; when the acid value of used oil reaches ≥0.2mgKOH/g, the risk of equipment wear increases by more than 300%, and the service life is directly shortened by over 40%.

Data Witnesses Strength: Niubortec Resets the New Benchmark for Acid Value Control in Refrigeration Oil​

Facing strict industry standards and operating condition requirements, Niubortec Refrigeration Oil achieves precise control of acid value through extreme craftsmanship: tested by GB/T7304 Potentiometric Titration Method, the acid value of its new oil is stably controlled at ≤0.01mgKOH/g, which is far superior to the conventional industry requirement of ≤0.05mgKOH/g for new oil, and even exceeds the top indicator of acid value ＜0.01mgKOH/g in the group standard T/GXDSL 343—2025.​

In the accelerated aging test at 175℃ for 14 days, the acid value increase of Niubortec Refrigeration Oil is only 0.08mgKOH/g, much lower than the industry critical value of ≤0.2mgKOH/g, with no sludge formation. Behind this performance is Niubortec's ultimate pursuit of refining technology——removing impurity acidic components through multi-stage molecular distillation technology, combined with an exclusive antioxidant additive system, to fundamentally inhibit oxidative acidification and ensure that the oil maintains a low acid value state for a long time under harsh operating conditions such as high temperature, high pressure, and refrigerant mixing.

Low Acid Value Empowers: Niubortec Escorting Refrigeration Systems​

For every 0.01mgKOH/g reduction in acid value, the risk of equipment metal corrosion decreases by 15%, and the oil change interval can be extended by more than 2000 hours. Relying on the advantage of ultra-low acid value, Niubortec Refrigeration Oil achieves three core values:​

1.Anti-corrosion & Component Protection: Prevents acidic substances from synergizing with moisture to corrode metal components such as copper and iron, reducing failures such as compressor wear and pipeline blockage;​

2.High Stability & Efficiency Improvement: The extremely low oxidation tendency ensures the long-term stability of key properties such as viscosity and flash point, and the operation efficiency retention rate of refrigeration systems reaches over 98%;​

3. Long Service Life & Cost Reduction: Tested, the average oil change interval of refrigeration equipment using Niubortec is extended to 8000 hours, reducing the oil change frequency by 50% compared with ordinary oils, and the comprehensive operation and maintenance cost is reduced by 35%.

From cold chain logistics to industrial refrigeration, from household air conditioners to large cold storage, Niubortec Refrigeration Oil takes GB/T4945 and GB/T7304 standards as the inspection cornerstone, and redefines the quality standard of refrigeration oil with precise acid value control of ≤0.01mgKOH/g. Choosing Niubortec means equipping the refrigeration system with a "long-term protective shield", allowing every piece of equipment to operate continuously in a state of low loss and high efficiency.

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