Flange - Blind, ANSI Class 600, B16.5, RF (in)

Flange - Blind, ANSI Class 600, B16.5, RF (in) This datasheet is for blind flanges that have a raised face connection. Dimensions per ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 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 NBH	Diameter of Bolt Holes DBH	Bolt Circle Diameter P	Approx. Weight (lb) AW
1/2	3 3/4	1 3/8	9/16	4	5/8	2 5/8	3
3/4	4 5/8	1 11/16	5/8	4	3/4	3 1/4	4
1	4 7/8	2	11/16	4	3/4	3 1/2	4
1 1/4	5 1/4	2 1/2	13/16	4	3/4	3 7/8	6
1 1/2	6 1/8	2 7/8	7/8	4	7/8	4 1/2	8
2	6 1/2	3 5/8	1	8	3/4	5	10
2 1/2	7 1/2	4 1/8	1 1/8	8	7/8	5 7/8	15
3	8 1/4	5	1 1/4	8	7/8	6 5/8	20
3 1/2	9	5 1/2	1 3/8	8	1	7 1/4	29
4	10 3/4	6 3/16	1 1/2	8	1	8 1/2	41
5	13	7 5/16	1 3/4	8	1 1/8	10 1/2	68
6	14	8 1/2	1 7/8	12	1 1/8	11 1/2	86
8	16 1/2	10 5/8	2 3/16	12	1 1/4	13 3/4	140
10	20	12 3/4	2 1/2	16	1 3/8	17	321
12	22	15	2 5/8	20	1 3/8	19 1/4	295
14	23 3/4	16 1/4	2 3/4	20	1 1/2	20 3/4	378
16	27	18 1/2	3	20	1 5/8	23 3/4	527
18	29 1/4	21	3 1/4	20	1 3/4	25 3/4	665
20	32	23	3 1/2	24	1 3/4	28 1/2	855
22	34 1/4	25 1/4	3 3/4	24	1 7/8	30 5/8	1000
24	37	27 1/4	4	24	2	33	1250