GB/T 18691.4-2011
AbolishedAgricultural irrigation equipment - Irrigation valves - Part 4: Air valves
农业灌溉设备 灌溉阀 第4部分：进排气阀
Application Summary AI generated
This standard specifies technical requirements, test methods, and acceptance criteria for air valves used in agricultural irrigation systems. It applies to valves that automatically release or admit air to prevent vacuum formation and air accumulation in pipelines, ensuring stable water flow and system safety. The standard is primarily used by irrigation equipment manufacturers, testing laboratories, and agricultural engineering projects in China.
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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.