Flange - Weld Neck, ANSI Class 600, B16.47 Series A (in)
- Dimensions to ASME B16.47 - Large Diameter Steel Flanges: NPS 26 Through NPS 60 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
| Diameter of Bolt Holes
| Bolt Circle Diameter
P | Approx. Weight
(lb) |
---|---|---|---|---|---|---|---|---|---|---|---|
26 | 40 | 29 1/2 | 4 1/4 | * | 26 | 29 7/16 | 8 3/4 | 28 | 2 | 36 | 940 |
28 | 42 1/4 | 31 1/2 | 4 3/8 | * | 28 | 31 5/8 | 9 1/4 | 28 | 2 1/8 | 38 | 1060 |
30 | 44 1/2 | 33 3/4 | 4 1/2 | * | 30 | 33 15/16 | 9 3/4 | 28 | 2 1/8 | 40 1/4 | 1210 |
32 | 47 | 36 | 4 5/8 | * | 32 | 36 1/8 | 10 1/4 | 28 | 2 3/8 | 42 1/2 | 1375 |
34 | 49 | 38 | 4 3/4 | * | 34 | 38 5/16 | 10 5/8 | 28 | 2 3/8 | 44 1/2 | 1540 |
36 | 51 3/4 | 40 1/4 | 4 7/8 | * | 36 | 40 5/8 | 11 1/8 | 28 | 2 5/8 | 47 | 1705 |
38 | 50 | 41 1/2 | 6 | * | 38 | 40 1/4 | 10 | 28 | 2 3/8 | 45 3/4 | 1470 |
40 | 52 | 43 3/4 | 6 1/4 | * | 40 | 42 1/4 | 10 3/8 | 32 | 2 3/8 | 47 3/4 | 1630 |
42 | 55 1/4 | 46 | 6 5/8 | * | 42 | 44 3/8 | 11 | 28 | 2 5/8 | 50 1/2 | 2030 |
44 | 57 1/4 | 48 1/4 | 6 13/16 | * | 44 | 46 1/2 | 11 3/8 | 32 | 2 5/8 | 52 1/2 | 2160 |
46 | 59 1/2 | 50 1/4 | 7 1/16 | * | 46 | 48 5/8 | 11 13/16 | 32 | 2 5/8 | 54 3/4 | 2410 |
48 | 62 3/4 | 52 1/2 | 7 7/16 | * | 48 | 50 3/4 | 12 7/16 | 32 | 2 7/8 | 57 1/2 | 2855 |
50 | 65 3/4 | 54 1/2 | 7 3/4 | * | 50 | 52 7/8 | 12 15/16 | 28 | 3 1/8 | 60 | 3330 |
52 | 67 3/4 | 56 1/2 | 8 | * | 52 | 54 7/8 | 13 1/4 | 32 | 3 1/8 | 62 | 3560 |
54 | 70 | 58 3/4 | 8 1/4 | * | 54 | 57 | 13 3/4 | 32 | 3 1/8 | 64 1/4 | 3920 |
56 | 73 | 60 3/4 | 8 9/16 | * | 56 | 59 1/8 | 14 1/4 | 32 | 3 3/8 | 66 3/4 | 4280 |
58 | 75 | 63 | 8 3/4 | * | 58 | 61 1/8 | 14 9/16 | 32 | 3 3/8 | 68 3/4 | 4640 |
60 | 78 1/2 | 65 3/4 | 9 3/16 | * | 60 | 63 3/8 | 15 5/16 | 28 | 3 5/8 | 71 3/4 | 5000 |
- * To be specified by purchaser.