This standard specifies the type and basic dimensions, technical requirements, test methods, inspection rules, markings, packaging, etc. of hemispherical angled plug doors for railway locomotives. This standard applies to the manufacturing and inspection of hemispherical angled plug doors with a nominal diameter of DN32 (hereinafter referred to as angled plug doors) for connecting locomotives and vehicles in train air braking systems.
TB/T 3217-2009 Referenced Document
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TB/T 3217-2009 history
2009TB/T 3217-2009 Semi-spherical angle cock for locomotive