Flange - Weld Neck, ANSI Class 2500, B16.5 (in)

Flange - Weld Neck, ANSI Class 2500, B16.5 (in) These weld neck flanges 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. * To be specified by purchaser.
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	5 1/4	1 3/8	1 3/16	*	0.840	1 11/16	2 7/8	4	7/8	3 1/2	8
3/4	5 1/2	1 11/16	1 1/4	*	1.050	2	3 1/8	4	7/8	3 3/4	9
1	6 1/4	2	1 3/8	*	1.315	2 1/4	3 1/2	4	1	4 1/4	13
1 1/4	7 1/4	2 1/2	1 1/2	*	1.660	2 7/8	3 3/4	4	1 1/8	5 1/8	20
1 1/2	8	2 7/8	1 3/4	*	1.900	3 1/8	4 3/8	4	1 1/4	5 3/4	28
2	9 1/4	3 5/8	2	*	2.375	3 3/4	5	8	1 1/8	6 3/4	42
2 1/2	10 1/2	4 1/8	2 1/4	*	2.900	4 1/2	5 5/8	8	1 1/4	7 3/4	52
3	12	5	2 5/8	*	3.500	5 1/4	6 5/8	8	1 3/8	9	94
3 1/2	-	-	-	-	-	-	-	-	-	-	-
4	14	6 3/16	3	*	4.500	6 1/2	7 1/2	8	1 5/8	10 3/4	146
5	16 1/2	7 5/16	3 5/8	*	5.563	8	9	8	1 7/8	12 3/4	244
6	19	8 1/2	4 1/4	*	6.625	9 1/4	10 3/4	8	2 1/8	14 1/2	378
8	21 3/4	10 5/8	5	*	8.625	12	12 1/2	12	2 1/8	17 1/4	576
10	26 1/2	12 3/4	6 1/2	*	10.750	14 3/4	16 1/2	12	2 5/8	21 1/4	1068
12	30	15	7 1/4	*	12.750	17 3/8	18 1/4	12	2 7/8	24 3/8	1608