GB/T 9125.1-2020
ActiveFasteners for steel pipe flange joints—Part 1:PN designated
钢制管法兰连接用紧固件 第1部分：PN系列
Application Summary AI generated
GB/T 9125.1-2020 specifies technical requirements, dimensions, materials, and marking for bolts, studs, and nuts used in steel pipe flange joints with PN (pressure nominal) designation. It is applied in the design, manufacturing, and procurement of fasteners for industrial piping systems, such as in petrochemical, power generation, and water treatment facilities, where flanged connections must meet standardized pressure ratings. This standard ensures interchangeability and safe sealing performance under specified pressure and temperature conditions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.