Mobile air compressors as complete units are not classified as special equipment; however, if their accompanying pressure vessels have a volume of ≥25 L and a working pressure of ≥0.1 MPa, they qualify as pressure vessels under the…
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The vibration level of an air compressor’s main unit is typically assessed according to the ISO 20816 standard. Under normal operating conditions, it should generally be ≤2.8 mm/s (RMS); values exceeding 4.5 mm/s warrant close attention, and readings…
The decommissioning of air compressor pressure vessels shall be carried out in accordance with TSG 21; the principal circumstances include exceeding the service life, failing inspection, and the presence of irreparable defects. Periodic inspections serve as the key…
The moisture content of pharmaceutical compressed air directly affects sterility assurance and product quality. This article analyzes the classification requirements for pressure dew point specified in ISO 8573‑1, and, in conjunction with GMP’s control framework for clean compressed…
At standard atmospheric pressure, a dew point of −34°C corresponds to a moisture content of approximately 0.29 g/m³ (per dry air), or 156 ppmᵥ. This dew‑point level is suitable for high‑requirement industrial applications and is typically achieved using…
The high-altitude, low-oxygen, and wide-temperature‑range environment of Qinghai poses unique challenges to air compressors. Oil-free screw compressors, with their zero oil contamination, high purity, and robust environmental adaptability, have become the ideal choice for industries such as food,…
The oil content in air separation cooling box directly affects the safety of oxygen system. According to GB/T 13277.1-2018 and ISO 8573-1:2010 standards, this paper defines the oil content limit (≤ 0.01 mg/m³) and its application requirements in…
This paper analyzes the essential differences between high-pressure water screw machine and high-pressure oil-free screw machine in lubrication principle, clean air implementation mode, applicable pressure range and operation and maintenance points, help users choose more suitable clean compressed…
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