ASME B16.47 Class 300 Series B Blind Flanges
-
- All dimensions are in inches
- These flanges will be furnished with a 1/16″ raised face unless otherwise specified.
(Size Chart)
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Minimum Thickness (T) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|
| 26 | 34.12 | 31.62 | 29.00 | 32 | 1.38 | 3.50 | 905 |
| 28 | 36.25 | 33.75 | 31.00 | 36 | 1.38 | 3.50 | 1023 |
| 30 | 39.00 | 36.25 | 33.25 | 36 | 1.50 | 3.69 | 1250 |
| 32 | 41.50 | 38.50 | 35.50 | 32 | 1.62 | 4.06 | 1556 |
| 34 | 43.62 | 40.62 | 37.50 | 36 | 1.62 | 4.06 | 1719 |
| 36 | 46.12 | 42.88 | 39.75 | 32 | 1.75 | 4.06 | 1920 |
| 38 | 48.12 | 44.88 | 41.75 | 36 | 1.75 | 4.38 | 2257 |
| 40 | 50.12 | 46.88 | 43.88 | 40 | 1.75 | 4.56 | 2550 |
| 42 | 52.50 | 49.00 | 46.00 | 36 | 1.88 | 4.69 | 2875 |
| 44 | 54.50 | 51.00 | 48.00 | 40 | 1.88 | 5.00 | 3305 |
| 46 | 57.50 | 53.75 | 50.00 | 36 | 2.00 | 5.12 | 3766 |
| 48 | 59.50 | 55.75 | 52.25 | 40 | 2.00 | 5.31 | 4183 |
| 50 | 61.50 | 57.75 | 54.25 | 44 | 2.00 | 5.50 | 4629 |
| 52 | 63.50 | 59.75 | 56.25 | 48 | 2.00 | 5.68 | 5096 |
| 54 | 65.88 | 62.12 | 58.25 | 48 | 2.00 | 5.88 | 5679 |
| 56 | 69.50 | 65.00 | 60.50 | 36 | 2.38 | 6.18 | 6642 |
| 58 | 71.94 | 67.44 | 62.75 | 40 | 2.38 | 6.38 | 7347 |
| 60 | 73.94 | 69.44 | 65.00 | 40 | 2.38 | 6.56 | 7980 |