Flange - Blind, ANSI Class 300, B16.47 Series A (in) | |||||||
|---|---|---|---|---|---|---|---|
| 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 1/8 | 28 | 1 3/4 | 34 1/2 | 1080 |
| 28 | 40 3/4 | 31 1/2 | 3 9/16 | 28 | 1 3/4 | 37 | 1315 |
| 30 | 43 | 33 3/4 | 3 3/4 | 28 | 1 7/8 | 39 1/4 | 1540 |
| 32 | 45 1/4 | 36 | 3 15/16 | 28 | 2 | 41 1/2 | 1795 |
| 34 | 47 1/2 | 38 | 3 1/8 | 28 | 2 | 43 1/2 | 2070 |
| 36 | 50 | 40 1/4 | 3 3/8 | 32 | 2 1/8 | 46 | 2440 |
| 38 | 46 | 42 1/4 | 4 1/4 | 32 | 1 5/8 | 43 | 2000 |
| 40 | 48 1/4 | 44 1/4 | 4 1/2 | 32 | 1 3/4 | 45 1/2 | 2380 |
| 42 | 50 3/4 | 47 | 4 11/16 | 32 | 1 3/4 | 47 1/2 | 2690 |
| 44 | 53 1/4 | 49 | 4 7/8 | 32 | 1 7/8 | 49 3/4 | 3080 |
| 46 | 55 3/4 | 51 | 5 1/16 | 28 | 2 | 52 | 3500 |
| 48 | 57 3/4 | 53 1/2 | 5 1/4 | 32 | 2 | 54 | 3900 |
| 50 | 60 1/4 | 55 1/2 | 5 1/2 | 32 | 2 1/8 | 56 1/4 | 4440 |
| 52 | 62 1/4 | 57 1/2 | 5 11/16 | 32 | 2 1/8 | 58 1/4 | 4900 |
| 54 | 65 1/4 | 59 1/2 | 6 | 28 | 2 3/8 | 61 | 5685 |
| 56 | 67 1/4 | 62 | 6 1/16 | 28 | 2 3/8 | 63 | 6000 |
| 58 | 69 1/4 | 64 | 6 1/4 | 32 | 2 3/8 | 65 | 6670 |
| 60 | 71 1/4 | 66 | 6 7/16 | 32 | 2 3/8 | 67 | 7270 |
- 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.
