GB/T 40565.4-2021
ActiveConnections for hydraulic fluid power—Quick-action couplings—Part 4: Screw connection type at 72 MPa
液压传动连接 快换接头 第4部分：72 MPa螺纹连接型
Application Summary AI generated
This standard specifies the dimensions, performance requirements, and testing methods for screw-type quick-action couplings rated at 72 MPa (10,440 psi) in hydraulic fluid power systems. It is applied in high-pressure hydraulic circuits, such as those in heavy machinery, mining equipment, and industrial hydraulic tools, where secure, leak-free connections are critical under extreme operating pressures. The standard ensures interchangeability and reliability of couplings used in maintenance, assembly, or temporary hydraulic line connections.
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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.