ASME B16.47 Series B (API 605) — Series B weld neck flange — Class 75 (partial)
ASME B16.47 Series B (API 605) Series B weld neck flange — Class 75 (partial) — 2 sizes. Single-source reference — verify before use.
| NPS | Outside diameter (mm) | Min. thickness (mm) | Length through hub (mm) | Hub diameter (mm) | Raised face dia. (mm) | Bolt circle (mm) | No. of holes | Hole diameter (mm) | Bolt size (in) |
|---|---|---|---|---|---|---|---|---|---|
| 26 | — | — | — | — | — | — | 36 | 19 | 5/8 |
| 60 | 1676.4 | — | — | — | — | 1622.6 | 44 | 28.6 | 1 |
- PARTIAL TABLE.
- NPS 26: sources agree on 36 holes of 3/4 in and 5/8 in bolts, but disagree on OD (760 mm vs 30.00 in = 762 mm) and bolt circle (705 mm vs 28.50 in = 723.9 mm) — left null.
- NPS 60 from a single source (Ferrobend / Piping Pipeline / Marcel Forged result set).
Sources: ferrobend.com/dimensions/ansi-asme/flange/b16.47-series-b-cl · pipingpipeline.com/asme-b16-47-sb-flg-cl75.html · marcelforged.com/flange-dimensions-standards/series-b-flange