Periodic inspection

Simple pressure vessels used in compressor rooms are not required by law to undergo periodic inspections of the vessel body during their design service life (typically 10 years). However, the user organization must conduct routine inspections and verify…

As a type of special equipment, air compressor storage tanks have service life limits and scrapping regulations that directly impact an enterprise’s production safety. This article provides a detailed analysis of the criteria for determining the design service…

As a critical pressure vessel, the air receiver tank’s design life directly affects both its safe operation and economic efficiency. This paper provides a detailed analysis—covering fundamental concepts, key influencing factors, regulatory and code requirements, and practical assessment…

The design life of a pressure vessel is not fixed; it is determined by the design organization based on a comprehensive assessment of the medium’s properties, operating conditions, and material performance. Commonly specified design lives are 10, 15,…

As a critical safety accessory for special equipment, whether safety valves fall within the scope of national mandatory verification has been a subject of considerable concern. Based on relevant standards, this article provides a detailed analysis of the…

According to TSG 21, the design service life of compressor air receivers is typically 10 to 20 years; actual safe operation must be determined in conjunction with the results of periodic inspections. The initial inspection should be carried…

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…