Flange - Blind, ANSI Class 150, B16.47 Series B, RF (in)

Flange - Blind, ANSI Class 150, B16.47 Series B, RF (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	30 15/16	28	1 3/4	36	7/8	29 5/16	370
28	32 15/16	30	1 7/8	40	7/8	31 5/16	455
30	34 15/16	32	2	44	7/8	33 5/16	545
32	37 1/16	34	2 1/8	48	7/8	35 7/16	650
34	39 9/16	36 1/4	2 1/42	40	1	37 11/16	785
36	41 5/8	38 1/4	2 5/16	44	1	39 3/4	890
38	44 1/4	40 1/4	2 1/2	40	1 1/8	42 1/8	1090
40	46 1/4	42 1/2	2 5/8	44	1 1/8	44 1/8	1250
42	48 1/4	44 1/2	2 11/16	48	1 1/8	46 1/8	1395
44	50 1/4	46 1/2	2 13/16	52	1 1/8	48 1/8	1580
46	52 13/16	48 5/8	2 15/16	40	1 1/4	50 9/16	1825
48	54 13/16	50 3/4	3 1/16	44	1 1/4	52 9/16	2045
50	56 13/16	52 3/4	3 3/16	48	1 1/4	54 9/16	2285
52	58 13/16	54 3/4	3 5/16	52	1 1/4	56 9/16	2550
54	61	56 3/4	3 7/16	56	1 1/4	58 3/4	2850
56	63	58 3/4	3 9/16	60	1 1/4	60 3/4	3145
58	65 15/16	60 3/4	3 11/16	48	1 3/8	63 7/16	3560
60	67 15/16	63	3 13/16	52	1 3/8	65 7/16	3915