ASME B16.48 — Spectacle blind (figure-8), RF — Class 300

Name: ASME B16.48 Spectacle blind (figure-8), RF — Class 300
License: https://teshigroup.com

ASME B16.48 Spectacle blind (figure-8), RF — Class 300 — 16 sizes.

NPS	Outside dia. A (mm)	Inside dia. B (mm)	Centre line C (mm)	Thickness t (mm)	Web width W (mm)
1/2	51	16	65	6.4	38
3/4	64	21	80	6.4	38
1	70	27	90	6.4	38
1-1/2	92	48	115	6.4	38
2	108	61	125	9.7	51
3	146	89	170	9.7	64
4	178	114	200	12.7	64
6	248	168	270	15.7	76
8	305	219	330	22.4	76
10	359	273	385	25.4	102
12	419	324	450	28.4	102
14	483	356	515	31.8	108
16	536	406	570	38.1	108
18	594	457	630	41.1	114
20	651	508	685	44.5	121
24	772	610	810	50.8	140

Project Materials, Wermac and Adco Forge (second Class 300 block) agree.
One vendor lists NPS 1 web width 57 mm (vs 38); machinemfg lists NPS 4 OD 197 / t 15.7 — both rejected.
Web (tie bar) thickness: 6 mm minimum, or equal to t if t < 6 mm (Wermac).