Flange - Blind, ANSI Class 900, B16.5, RF (in)

Flange - Blind, ANSI Class 900, B16.5, RF (in) This datasheet is for flanges that have a Raised Face end connection. Additional in depth information about these kinds of flanges can be found on the Raised Face Flange page. 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	4 3/4	1 3/8	7/8	4	7/8	3 1/4	4
3/4	5 1/8	1 11/16	1	4	7/8	3 1/2	6
1	5 7/8	2	1 1/8	4	1	4	9
1 1/4	6 1/4	2 1/2	1 1/8	4	1	4 3/8	10
1 1/2	7	2 7/8	1 1/4	4	1 1/8	4 7/8	14
2	8 1/2	3 5/8	1 1/2	8	1	6 1/2	25
2 1/2	9 5/8	4 1/8	1 5/8	8	1 1/8	7 1/2	32
3	9 1/2	5	1 1/2	8	1	7 1/2	35
3 1/2	-	-	-	-	-	-	-
4	11 1/2	6 3/16	1 3/4	8	1 1/4	9 1/4	54
5	13 3/4	7 5/16	2	8	1 3/8	11	87
6	15	8 1/2	2 3/16	12	1 1/4	12 1/2	115
8	18 1/2	10 5/8	2 1/2	12	1 1/2	15 1/2	200
10	21 1/2	12 3/4	2 3/4	16	1 1/2	18 1/2	290
12	24	15	3 1/8	20	1 1/2	21	415
14	25 1/4	16 1/4	3 3/8	20	1 5/8	22	520
16	27 3/4	18 1/2	3 1/2	20	1 3/4	24 1/4	619
18	31	21	4	20	2	27	880
20	33 3/4	23	4 1/4	20	2 1/8	29 1/2	1107
22	-	-	-	-	-	-	-
24	41	27 1/4	5 1/2	20	2 5/8	35 1/2	2099