TB/T 3102.25-2005 Curved-face bayonet ring couplings for rolling stock Part 25: Insert external columned thread straight coupling bodies (English Version)
This part of TB/T 3102 specifies the structural form, dimensions, technical requirements and markings of the threaded straight-through pipe joint body of the curved surface ferrule type pipe joint with specifications G 1/4B × 10 ~ G 1 1/4B × 42. . This section applies to electric locomotives, diesel locomotives and vehicle air piping systems.
TB/T 3102.25-2005 history
2005TB/T 3102.25-2005 Curved-face bayonet ring couplings for rolling stock Part 25: Insert external columned thread straight coupling bodies