ANSI B16.47 Series B Class 600 Flanges

		Thickness							Drilling				Weights
Nom Size	OD	Weld Neck	Blind	OD of RF	Dia at Base	Bore	LTH	Dia Bevel	Bolt Circle	Bolt Length	HoleDia	# of Holes	Weld Neck	Blind
/th>	O	C	C	R	X	B	Y	A		(1)	(2)
26	35	4.38	4.38	28.62	27.5		7.12	26	31.75	13.5	1.75	28	550	1194
28	37.5	4.56	4.56	30.88	29.62			7.5	28	34	14.25	1.88	28	650	1427
30	40.25	4.94	5	33.12	31.75			8.06	30	36.5	15.25	2	28	810	1802
32	42.75	5.12	5.31	35.25	33.88			8.5	32	38.75	16	2.12	28	950	2159
34	45.75	5.56	5.68	37.5	36			9.19	34	41.5	17.25	2.38	24	1205	2645
36	47.75	5.75	5.94	39.75	38.12			9.56	36	43.5	17.75	2.38	28	1340	3013
38	50	6	6.12	41.5	40.25			10	38	45.75	18.25	2.38	28	1470	3404
40	52	6.25	6.38	43.75	42.25			10.38	40	47.75	18.75	2.38	32	1630	3838
42	55.25	6.62	6.75	46	44.38			11	42	50.5	19.75	2.62	28	2030	4585
44	57.25	6.81	7	48.25	46.5			11.38	44	52.5	20.25	2.62	32	2160	5105
46	59.5	7.06	7.31	50.25	48.62			11.81	46	54.75	20.75	2.62	32	2410	5758
48	62.75	7.44	7.69	52.5	50.75			12.44	48	57.5	22.25	2.88	32	2855	6737
50	65.75	7.75	8	54.5	52.88			12.94	50	60	23.25	3.12	28	3330	7695
52	67.75	8	8.25	56.5	54.88			13.25	52	62	23.75	3.12	32	3560	8426
54	70	8.25	8.56	58.75	57			13.75	54	64.25	24.25	3.12	32	3920	9333
56	73	8.56	8.88	60.75	59.12			14.25	56	66.75	25.5	3.38	32	4280	10,529
58	75	8.75	9.12	63	61.12			14.56	58	68.75	26	3.38	32	4640	11,414
60	78.5	9.19	9.56	65.25	63.38			15.31	60	71.75	27.25	3.62	28	5000	13,108

Dimensions are in inches. Weights are in pounds.

(1)- Bolt lenghts are calculated based on bolting one WN to one Blind.
(2)- Bolt diameter should be 1/8″ less than the bolt hole diameter
Note:

Larger sizes as well as intermediate sizes can be furnished.
ANSI B16.47 Series B Class 600 Flange PDF (for printing).