Flange - Blind, ANSI Class 2500, B16.5, RTJ (in)

Flange - Blind, ANSI Class 2500, B16.5, RTJ (in) This datasheet is for flanges that have a ring type joint (RTJ) end connection. Additional in depth information about these kinds of flanges can be found on the Ring Type Joint 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	Thickness of Flange C	Diameter of Raised Face T	Diameter of Groove U	Groove Width W	Groove Depth X	Number of Bolt Holes	Diameter of Bolt Holes	Bolt Circle Diameter P
1/2	5 1/4	1 3/16	2 9/16	1 11/16	11/32	1/4	4	7/8	3 1/2
3/4	5 1/2	1 1/4	2 7/8	2	11/32	1/4	4	7/8	3 3/4
1	6 1/4	1 3/8	3 1/4	2 3/8	11/32	1/4	4	1	4 1/4
1 1/4	7 1/4	1 1/2	4	2 27/32	15/32	5/16	4	1 1/8	5 1/8
1 1/2	8	1 3/4	4 1/2	3 1/4	15/32	5/16	4	1 1/4	5 3/4
2	9 1/4	2	5 1/4	4	15/32	5/16	8	1 1/8	6 3/4
2 1/2	10 1/2	2 1/4	5 7/8	4 3/8	17/32	3/8	8	1 1/4	7 3/4
3	12	2 5/8	6 5/8	5	17/32	3/8	8	1 3/8	9
3 1/2	-	-	-	-	-	-	-	-	-
4	14	3	8	6 3/16	22/51	7/16	8	1 5/8	10 3/4
5	16 1/2	3 5/8	9 1/2	7 1/2	21/32	1/2	8	1 7/8	12 3/4
6	19	4 1/4	11	9	25/32	1/2	8	2 1/8	14 1/2
8	21 3/4	5	13 3/8	11	29/32	9/16	12	2 1/8	17 1/4
10	26 1/2	6 1/2	16 3/4	13 1/2	1 3/16	11/16	12	2 5/8	21 1/4
12	30	7 1/4	19 1/2	16	1 5/16	11/16	12	2 7/8	24 3/8