Flange - Weld Neck, ANSI Class 900, B16.5 (in)

Flange - Weld Neck, ANSI Class 900, B16.5 (in)
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	7
3/4	5 1/8	1 11/16	1	*	1.050	1 3/4	2 3/4	4	7/8	3 1/2	7
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	9 1/2	5	1 1/2	*	3.500	5	4	8	1	7 1/2	32
3 1/2	-	-	-	-	-	-	-	-	-	-	-
4	11 1/2	6 3/16	1 3/4	*	4.500	6 1/4	4 1/2	8	1 1/4	9 1/4	51
5	13 3/4	7 5/16	2	*	5.563	7 1/2	5	8	1 3/8	11	86
6	15	8 1/2	2 3/16	*	6.625	9 1/4	5 1/2	12	1 1/4	12 1/2	110
8	18 1/2	10 5/8	2 1/2	*	8.625	11 3/4	6 3/8	12	1 1/2	15 1/2	187
10	21 1/2	12 3/4	2 3/4	*	10.750	14 1/2	7 1/4	16	1 1/2	18 1/2	268
12	24	15	3 1/8	*	12.750	16 1/2	7 7/8	20	1 1/2	21	372
14	25 1/4	16 1/4	3 3/8	*	14.00	17 3/4	8 3/8	20	1 5/8	22	562
16	27 3/4	18 1/2	3 1/2	*	16.00	20	8 1/2	20	1 3/4	24 1/4	685
18	31	21	4	*	18.00	22 1/4	9	20	2	27	924
20	33 3/4	23	4 1/4	*	20.00	24 1/2	9 3/4	20	2 1/8	29 1/2	1164
22	-	-	-	-	-	-	-	-	-	-	-
24	41	27 1/4	5 1/2	*	24.00	29 1/2	11 1/2	20	2 5/8	35 1/2	2107

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.

Head Velocity

Carbon Steel

Impact Velocity

Water Horsepower Total Head