This standard specifies the type, size, technical requirements and markings of double spherical straight joints for rolling stock. This standard is applicable to piping systems on rolling stock and EMUs with temperatures ranging from -40°C to 200°C and nominal pressures less than or equal to 4.0MPa. This standard specifies the bispherical surfaces for rolling stock
TB/T 833-2005 history
1970TB/T 833-2005 Double spherical straight-through joints for locomotive and rolling stock