ASME B16.47 Series B Class 150 Flange Dimensions

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Nominal Size	Outside Diameter (OD)	Min. Thickness [Note1] – WNF  (tf)	Min. Thickness [Note1] – Blind  (tf)	Length Through Hub  (Y)	Hub Dia. Base [Note2] (X)	Hub Dia. Top (A)	Raised Face Dia.  (R)	Drilling – Bolt Circle Dia.	Drilling – No. of Bolt Holes	Drilling – Dia. of Bolt Hole	Dia. of Bolt	Min. Fillet Radius (r1)
26	30.94	1.57	1.69	3.44	26.94	26.06	28.00	29.31	36	7⁄8	3⁄4	0.38
28	32.94	1.69	1.82	3.69	28.94	28.06	30.00	31.31	40	7⁄8	3⁄4	0.38
30	34.94	1.69	1.94	3.88	31.00	30.06	32.00	33.31	44	7⁄8	3⁄4	0.38
32	37.06	1.75	2.07	4.19	33.06	32.06	34.00	35.44	48	7⁄8	3⁄4	0.38
34	39.56	1.88	2.19	4.28	35.12	34.06	36.25	37.69	40	1	7⁄8	0.38
36	41.62	2.00	2.25	4.57	37.19	36.06	38.25	39.75	44	1	7⁄8	0.38
38	44.25	2.07	2.44	4.82	39.25	38.12	40.25	42.12	40	11⁄8	1	0.38
40	46.25	2.13	2.57	5.00	41.31	40.12	42.50	44.12	44	11⁄8	1	0.38
42	48.25	2.25	2.63	5.19	43.38	42.12	44.50	46.12	48	11⁄8	1	0.44
44	50.25	2.32	2.75	5.32	45.38	44.12	46.50	48.12	52	11⁄8	1	0.44
46	52.81	2.38	2.88	5.63	47.44	46.12	48.62	50.56	40	11⁄4	11⁄8	0.44
48	54.81	2.50	3.00	5.82	48.50	48.12	50.75	52.56	44	11⁄4	11⁄8	0.44
50	56.81	2.63	3.13	6.00	51.50	50.12	52.75	54.56	48	11⁄4	11⁄8	0.44
52	58.81	2.69	3.25	6.13	53.56	52.12	54.75	56.56	52	11⁄4	11⁄8	0.44
54	61.00	2.75	3.38	6.32	55.62	54.12	56.75	58.75	56	11⁄4	11⁄8	0.44
56	63.00	2.82	3.50	6.50	57.69	56.12	58.75	60.75	60	11⁄4	11⁄8	0.56
58	65.94	2.88	3.62	6.82	59.69	58.12	60.75	63.44	48	13⁄8	11⁄4	0.56
60	67.94	2.94	3.75	7.00	61.81	60.12	63.00	65.44	52	13⁄8	11⁄4	0.56

ASME B16.47 Series B Class 150 Flange Industries and Applications Widely used in the industries

ASME B16.47 Series B Class 150 Flange Supply and Export Network List of Cities and Countries