Tuyauteries, pipelines, canalisations
Veille normative septembre 2019

ASME B31.3-2018,  Tuyauteries industrielles (du type de celles destinées à l’industrie pétrochimique)

Remplace ASME B31.3-2016 ( de juillet 2016).

Process piping

ASME B31.3 contains requirements for piping typically found in petroleum refineries and in related processing plants and terminals. It covers materials and components, design, fabrication, assembly, erection, examination, inspection, and testing of piping. This Code applies to piping for all fluids including raw, intermediate, and finished chemicals; petroleum products; gas, steam, air and water; fluidized solids; refrigerants; cryogenic fluids. Also included is piping that interconnects pieces or stages within a packaged equipment assembly. Key changes to this revision include:

• addition of Appendix W “High cycle fatigue assessment of piping systems”;

• metric conversion added for Table C-6 “Moduli Table”;

• metric conversions added for Appendix C “Thermal Expansion”;

• major updates to the stress tables in A-1, A-1M, K-1;

• paragraph 323.2.2 “Rules for impact testing of materials” was updated to correct inconsistencies, and incorporate current approaches to impact testing exceptions of materials;

• reference to the new B31J-2017 was added to allow alternate rounding approaches for units of measurement;

• update of the Larson Miller constant for Grade 91 (9Cr-1Mo-V) material;

• update of Appendix D “Flexibility and stress intensification factors”;

• addition of titanium Grade 12 to Table A-1 and Table A-1M.

B31.3 is one of ASME’s most requested codes. It serves as a companion to ASME’s B31.1 Code on Power Piping as well as to the other codes in ASME’s B31 series. Together, they remain essential references for anyone engaged with piping. Careful application of these B31 codes will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes.

Publié par ASME le 30/08/2019