Food processing plants in the Yangzhou region require a continuous supply of clean, oil-free compressed air. This paper outlines the key components suitable for oil-free screw compressors, including sealing assemblies, aftertreatment filter elements, food-grade piping fittings, and control‑system…
Clean compressed air
The Chinese Pharmacopoeia classifies compressed air as a critical process gas, stipulating that its microbiological, oil, particulate, and moisture levels must meet the corresponding grades specified in ISO 8573‑1, and requires its inclusion in pharmaceutical companies’ GMP validation…
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What are the standards for oil content, water content, suspended particles, and microorganisms in clean compressed air used in the production of injectable preparations?
Clean compressed air used in the production of injectables must comply with both GMP and ISO 8573‑1 standards: oil content ≤ 0.01 mg/m³, pressure dew point ≤ −40°C, particles ≥ 0.5 μm ≤ 10⁶ per m³, and microorganisms…
The fermentation process relies on highly purified compressed air, requiring stringent control of oil, moisture, particulates, and microorganisms. This article provides a detailed overview of the classification standards for sterile compressed air in biopharmaceutical applications, the requirements for…
Oil-free screw compressors, as the core equipment for supplying clean compressed air in modern industry, are widely used in sectors such as food processing, pharmaceuticals, and electronics—industries that demand exceptionally high air quality. This article provides a detailed…
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Quality grade standards for compressed air in direct contact with food or food-contact surfaces
This article analyzes the ISO 8573‑1 classification requirements that compressed air in direct contact with food must meet, and, in conjunction with GMP and HACCP standards, elucidates key control parameters such as oil, water, particulates, and microorganisms. It…
ISO 8573‑1:2010 [2:2:2] specifies stringent limits for particulate matter, moisture (with a pressure dew point ≤ –40°C), and oil content in compressed air. This class denotes a high level of cleanliness and is suitable for industries sensitive to…
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Commissioning and Maintenance of Oil-Free Screw Air Compressors for the Semiconductor Industry in Nantong
This paper outlines the commissioning key points and typical maintenance scenarios for oil-free screw compressors in semiconductor plants in the Nantong region, covering clean air standards, system integration and testing procedures, common fault diagnosis, and localized maintenance recommendations,…
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