Flange - Blind, ANSI Class 400, B16.47 Series A (in)

Flange - Blind, ANSI Class 400, B16.47 Series A (in) Dimensions per ASME B16.47 - Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard Bolt circle diameters are 1/8 inch larger than bolt diameter.
Pipe Size (NPS)	Outside Diameter of Flange A	Diameter of Raised Face B	Thickness of Flange C	Number of Bolt Holes	Diameter of Bolt Holes	Bolt Circle Diameter P	Approx Weight (lb)
26	38 1/4	29 1/2	3 7/8	28	1 7/8	34 1/2	1260
28	40 3/4	31 1/2	4 1/8	28	2	37	1520
30	43	33 3/4	4 3/8	28	2 1/8	39 1/4	1800
32	45 1/4	36	4 9/16	28	2 1/8	41 1/2	2080
34	47 1/2	38	4 13/16	28	2 1/8	43 1/2	2415
36	50	40 1/4	5 1/16	32	2 1/8	46	2815
38	47 1/2	40 3/4	4 7/8	32	1 7/8	44	2450
40	50	43	5 1/8	32	2	46 1/4	2850
42	52	45	5 1/4	32	2	48 1/4	2160
44	54 1/2	47 1/4	5 1/2	32	2 1/8	50 1/2	3635
46	56 3/4	49 1/2	5 3/4	36	2 1/8	52 3/4	4120
48	59 1/2	51 1/2	6	28	2 3/8	55 1/4	4725
50	61 3/4	53 5/8	6 1/4	32	2 3/8	57 1/2	5300
52	63 3/4	55 5/8	4 7/16	32	2 3/8	59 1/2	5820
54	67	57 7/8	6 3/4	28	2 5/8	62 1/4	6740
56	69	60 1/8	6 15/16	32	2 5/8	64 1/4	7350
58	71	62 1/8	7 1/8	32	2 5/8	66 1/4	7980
60	71 1/4	64 3/8	7 7/16	32	2 7/8	69	9125