Oil-free grade standard for air compressor

The oil-free level standard of air compressor mainly refers to the international standard ISO 8573-1, which classifies the oil content in compressed air in detail. In the definition of oil-free level, the main concern is that the oil content in the compressed air must be extremely low to meet the application scenarios with extremely high air quality requirements.

Overview of oil-free grade standards

• CLASS 0 level (oil-free level): The oil content is required to be less than 0.01 mg/m & sup3;, which is one of the most stringent levels and is usually considered to be oil-free. In practical applications, some high-quality oil-free air compressors can control their oil content at a very low level, such as 5ppm (0.005 mg/m & sup3;) or less, to meet the high requirements for air quality. Industries such as medicine, food, beverage, electronics, biological fermentation, etc.

How to get CLASS 0 oil-free certification

to obtain CLASS 0 oil-free certification, air compressors need to pass rigorous tests under ISO 8573 standards. These tests cover all forms of oil contamination in compressed air, including mist oil, liquid oil and gaseous oil. Test methods typically include a partial flow (B2) test method and a full flow (B1) test method. Among them, the full flow test method is more stringent and can detect the mist oil and liquid oil in all air flows.

Precautions

• different industries and application scenarios may have different requirements for the oil content of air compressors, so it is necessary to consider the actual needs when selecting air compressors.
• With the continuous improvement of compressed air quality requirements in all walks of life, oil-free air compressors are becoming more and more popular, and their advantages in ensuring air quality have become increasingly prominent.

To sum up, the oil-free level standard of air compressor is ISO 8573-1, of which CLASS 0 requires oil content less than 0.01 mg/m & sup3;, which is one of the highest levels of compressed air quality requirements. When choosing an air compressor, it is necessary to carefully consider the oil content standard according to actual needs and application scenarios.