Understanding the Latest ASME B16.5 / B16.47 Updates

August 25, 2026

Recent editions of flange standards adjust rating tables and marking requirements. Learn what changed and how it affects your projects.

Understanding the Latest ASME B16.5 / B16.47 Updates

Standard Updates at a Glance

The latest editions of ASME B16.5 and B16.47 introduce clarifications on pressure-temperature ratings, facing requirements and mandatory marking. Engineers should verify compliance when specifying flanged valves.

Impact on Valve Selection

While dimensions remain largely unchanged, the updated marking and documentation rules affect acceptance inspection. Always confirm the standard edition when ordering.

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