GB/T 13402-2010
AbolishedLarge diameter steel pipe flanges
大直径钢制管法兰
Application Summary AI generated
This standard specifies the dimensions, tolerances, materials, and pressure-temperature ratings for large diameter steel pipe flanges used in fluid systems. It is applied in industries such as petrochemical, chemical, and power generation for connecting pipes, valves, and equipment where nominal pipe sizes exceed DN 600 (24 inches). The standard ensures interchangeability and sealing performance in high-pressure and high-temperature fluid transport applications.
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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.