Flange - Weld Neck, ANSI Class 1500, B16.5 (in)

on 18 February 2016. Posted in Weld Neck Flange Datasheets

This datasheet is for weld neck flanges that have a raised face connection.

Dimensions to 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	Diameter of Bore D	Diameter of Hub at Weld H	Diameter of Hub at Base J	Length of Hub K	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	*	0.840	1 1/2	2 3/8	4	7/8	3 1/4	9
3/4	5 1/8	1 11/16	1	*	1.050	1 3/4	2 3/4	4	7/8	3 1/2	9
1	5 7/8	2	1 1/8	*	1.315	2 1/16	2 7/8	4	1	4	9
1 1/4	6 1/4	2 1/2	1 1/8	*	1.660	2 1/2	2 7/8	4	1	4 3/8	10
1 1/2	7	2 7/8	1 1/4	*	1.900	2 3/4	3 1/4	4	1 1/8	4 7/8	14
2	8 1/2	3 5/8	1 1/2	*	2.375	4 1/8	4	8	1	6 1/2	25
2 1/2	9 5/8	4 1/8	1 5/8	*	2.875	4 7/8	4 1/8	8	1 1/8	7 1/2	36
3	10 1/2	5	1 7/8	*	3.500	5 1/4	4 5/8	8	1 1/4	8	48
3 1/2	-	-	-	-	-	-	-	-	-	-	-
4	12 1/4	6 3/16	2 1/8	*	4.500	6 3/8	4 7/8	8	1 3/8	9 1/2	73
5	14 3/4	7 5/16	2 7/8	*	5.563	7 3/4	6 1/8	8	1 5/8	11 1/2	132
6	15 1/2	8 1/2	3 1/4	*	6.625	9	6 3/4	12	1 1/2	12 1/2	164
8	19	10 5/8	3 5/8	*	8.625	11 1/2	8 3/8	12	1 3/4	15 1/2	273
10	23	12 3/4	4 1/4	*	10.750	14 1/2	10	12	2	19	454
12	26 1/2	15	4 7/8	*	12.750	17 3/4	11 1/8	16	2 1/8	22 1/2	690
14	29 1/2	16 1/4	5 1/4	*	14.00	19 1/2	11 3/4	16	2 3/8	25	940
16	32 1/2	18 1/2	5 3/4	*	16.00	21 3/4	12 1/4	16	2 5/8	27 3/4	1250
18	36	21	6 3/8	*	18.00	23 1/2	12 7/8	16	2 7/8	30 1/2	1625
20	38 3/4	23	7	*	20.00	25 1/4	14	16	3 1/8	32 3/4	2050
22	-	-	-	-	-	-	-	-	-	-	-
24	46	27 1/4	8	*	24.00	30	16	16	3 5/8	39	3325