This standard specifies the expression method for model designation, model codes, driving mode codes, connection type codes, structure type codes, sealing material codes, valve body material codes and pressure codes of general purpose valves.
This standard is applicable to the model designation of general purpose gate valves, stop valves, butterfly valves, ball valves, diaphragm valves, plug valves, check valves, safety valves, pressure relief valves, automatic steam traps, drainage valves and plunger valves.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 1048 Nominal pressures and test pressures for pipes and pipe line accessories
