The national standards for oil-free air compressors mainly include GB/T3853 and GB/T28143.
The GB/T3853 standard specifies the gas quality standards that oil-free air compressors should meet, covering the three key parameters of particle size, moisture content and oil content, which is consistent with the international standard ISO8573-11. The GB/T28143 standard focuses on explaining the relevant requirements for oil-free air compressors in the design, manufacturing, use and maintenance process to ensure the overall performance and safety of the air compressor .
In addition, the quality standards for oil-free air compressors also include some specific technical indicators, such as gas production, exhaust pressure, air dryness and cleanliness, noise level, etc. Gas production refers to the displacement of compressed air under unit power, and the exhaust pressure should reach 7Bar. High-end models can achieve 0-8Bar adjustable. Air dryness and cleanliness are ensured by oil-free lubrication technology, air chamber inner wall treatment and air tank internal spraying treatment. The noise level must be controlled within 60 decibels in a specific environment.
These standards jointly ensure the performance and quality of oil-free air compressors to meet the needs of different application scenarios.