Flange - Blind, ANSI Class 900, 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.

Flange - Blind, ANSI Class 900, B16.5, RTJ (in)
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	4 3/4	7/8	2 3/8	1 9/16	11/32	1/4	4	7/8	3 1/4
3/4	5 1/8	1	2 5/8	1 3/4	11/32	1/4	4	7/8	3 1/2
1	5 7/8	1 1/8	2 13/16	2	11/32	1/4	4	1	4
1 1/4	6 1/4	1 1/8	3 3/16	2 3/8	11/32	1/4	4	1	4 3/8
1 1/2	7	1 1/4	3 5/8	2 11/16	11/32	1/4	4	1 1/8	4 7/8
2	8 1/2	1 1/2	4 7/8	3 3/4	15/32	5/16	8	1	6 1/2
2 1/2	9 5/8	1 5/8	5 3/8	4 1/4	15/32	5/16	8	1 1/8	7 1/2
3	9 1/2	1 1/2	6 1/8	4 7/8	15/32	5/16	8	1	7 1/2
3 1/2	-	-	-	-	-	-	-	-	-
4	11 1/2	1 3/4	7 1/8	5 7/8	15/32	5/16	8	1 1/4	9 1/4
5	13 3/4	2	8 1/2	7 1/8	15/32	5/16	8	1 3/8	11
6	15	2 3/16	9 1/2	8 5/16	15/32	5/16	12	1 1/4	12 1/2
8	18 1/2	2 1/2	12 1/8	10 5/8	15/32	5/16	12	1 1/2	15 1/2
10	21 1/2	2 3/4	14 1/4	12 3/4	15/32	5/16	16	1 1/2	18 1/2
12	24	3 1/8	16 1/2	15	15/32	5/16	20	1 1/2	21
14	25 1/4	3 3/8	18 3/8	16 1/2	21/32	7/16	20	1 5/8	22
16	27 3/4	3 1/2	20 5/8	18 1/2	21/32	7/16	20	1 3/4	24 1/4
18	31	4	23 3/8	21	25/32	1/2	20	2	27
20	33 3/4	4 1/4	25 1/2	23	25/32	1/2	20	2 1/8	29 1/2
22	-	-	-	-	-	-	-	-	-
24	41	5 1/2	30 3/8	27 1/4	1 1/16	5/8	20	2 5/8	35 1/2

Level Switch

Heat

Bolt Head Uses Wrench Size (mm)

Nyquist Theorem

Molar Mass of Gas