Flange - Blind, ANSI Class 400, B16.47 Series A (in)
- Dimensions per 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 | Number of Bolt Holes
| Diameter of Bolt Holes
| Bolt Circle Diameter
P | Approx Weight
(lb) |
---|---|---|---|---|---|---|---|
26 | 38 1/4 | 29 1/2 | 3 7/8 | 28 | 1 7/8 | 34 1/2 | 1260 |
28 | 40 3/4 | 31 1/2 | 4 1/8 | 28 | 2 | 37 | 1520 |
30 | 43 | 33 3/4 | 4 3/8 | 28 | 2 1/8 | 39 1/4 | 1800 |
32 | 45 1/4 | 36 | 4 9/16 | 28 | 2 1/8 | 41 1/2 | 2080 |
34 | 47 1/2 | 38 | 4 13/16 | 28 | 2 1/8 | 43 1/2 | 2415 |
36 | 50 | 40 1/4 | 5 1/16 | 32 | 2 1/8 | 46 | 2815 |
38 | 47 1/2 | 40 3/4 | 4 7/8 | 32 | 1 7/8 | 44 | 2450 |
40 | 50 | 43 | 5 1/8 | 32 | 2 | 46 1/4 | 2850 |
42 | 52 | 45 | 5 1/4 | 32 | 2 | 48 1/4 | 2160 |
44 | 54 1/2 | 47 1/4 | 5 1/2 | 32 | 2 1/8 | 50 1/2 | 3635 |
46 | 56 3/4 | 49 1/2 | 5 3/4 | 36 | 2 1/8 | 52 3/4 | 4120 |
48 | 59 1/2 | 51 1/2 | 6 | 28 | 2 3/8 | 55 1/4 | 4725 |
50 | 61 3/4 | 53 5/8 | 6 1/4 | 32 | 2 3/8 | 57 1/2 | 5300 |
52 | 63 3/4 | 55 5/8 | 4 7/16 | 32 | 2 3/8 | 59 1/2 | 5820 |
54 | 67 | 57 7/8 | 6 3/4 | 28 | 2 5/8 | 62 1/4 | 6740 |
56 | 69 | 60 1/8 | 6 15/16 | 32 | 2 5/8 | 64 1/4 | 7350 |
58 | 71 | 62 1/8 | 7 1/8 | 32 | 2 5/8 | 66 1/4 | 7980 |
60 | 71 1/4 | 64 3/8 | 7 7/16 | 32 | 2 7/8 | 69 | 9125 |