ASME B16.47 Class 150 Series B Welding Neck Flanges
| Item # | Nominal Pipe Size | Outside Diameter (O) | Maximum Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Minimum Fillet Radius (r) | Top of Hub (A) | Bore (B) | Approximate Weight | Bolt Circle (C) | Number of Holes | Diameter of Holes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26150WNSB | 26 | 30.94 in | 1.62 in | 28.00 in | 3.50 in | 26.94 in | 0.38 in | 26.06 in | Specified by purchaser | 120 lb | 29.31 in | 36 | 0.88 in |
| 28150WNSB | 28 | 32.94 in | 1.75 in | 30.00 in | 3.75 in | 28.94 in | 0.38 in | 28.06 in | Specified by purchaser | 140 lb | 31.31 in | 40 | 0.88 in |
| 30150WNSB | 30 | 34.94 in | 1.75 in | 32.00 in | 3.94 in | 31.00 in | 0.38 in | 30.06 in | Specified by purchaser | 150 lb | 33.31 in | 44 | 0.88 in |
| 32150WNSB | 32 | 37.06 in | 1.81 in | 34.00 in | 4.25 in | 33.06 in | 0.38 in | 32.06 in | Specified by purchaser | 170 lb | 35.44 in | 48 | 0.88 in |
| 34150WNSB | 34 | 39.56 in | 1.94 in | 36.25 in | 4.34 in | 35.12 in | 0.38 in | 34.06 in | Specified by purchaser | 210 lb | 37.69 in | 40 | 1.00 in |
| 36150WNSB | 36 | 41.62 in | 2.06 in | 38.25 in | 4.62 in | 37.19 in | 0.38 in | 36.06 in | Specified by purchaser | 240 lb | 39.75 in | 44 | 1.00 in |
| 38150WNSB | 38 | 44.25 in | 2.12 in | 40.25 in | 4.88 in | 39.25 in | 0.38 in | 38.12 in | Specified by purchaser | 290 lb | 42.12 in | 40 | 1.12 in |
| 40150WNSB | 40 | 46.25 in | 2.19 in | 42.50 in | 5.06 in | 41.31 in | 0.38 in | 40.12 in | Specified by purchaser | 310 lb | 44.12 in | 44 | 1.12 in |
| 42150WNSB | 42 | 48.25 in | 2.31 in | 44.50 in | 5.25 in | 43.38 in | 0.44 in | 42.12 in | Specified by purchaser | 345 lb | 46.12 in | 48 | 1.12 in |
| 44150WNSB | 44 | 50.25 in | 2.38 in | 46.50 in | 5.38 in | 45.38 in | 0.44 in | 44.12 in | Specified by purchaser | 370 lb | 48.12 in | 52 | 1.12 in |
| 46150WNSB | 46 | 52.81 in | 2.44 in | 48.62 in | 5.69 in | 47.44 in | 0.44 in | 46.12 in | Specified by purchaser | 435 lb | 50.56 in | 40 | 1.25 in |
| 48150WNSB | 48 | 54.81 in | 2.56 in | 50.75 in | 5.88 in | 49.50 in | 0.44 in | 48.12 in | Specified by purchaser | 480 lb | 52.56 in | 44 | 1.25 in |
| 50150WNSB | 50 | 56.81 in | 2.69 in | 52.75 in | 6.06 in | 51.50 in | 0.44 in | 50.12 in | Specified by purchaser | 520 lb | 54.56 in | 48 | 1.25 in |
| 52150WNSB | 52 | 58.81 in | 2.75 in | 54.75 in | 6.19 in | 53.56 in | 0.44 in | 52.12 in | Specified by purchaser | 550 lb | 56.56 in | 52 | 1.25 in |
| 54150WNSB | 54 | 61.00 in | 2.81 in | 56.75 in | 6.38 in | 55.62 in | 0.44 in | 54.12 in | Specified by purchaser | 620 lb | 58.75 in | 56 | 1.25 in |
| 56150WNSB | 56 | 63.00 in | 2.88 in | 58.75 in | 6.56 in | 57.69 in | 0.56 in | 56.12 in | Specified by purchaser | 650 lb | 60.75 in | 60 | 1.25 in |
| 58150WNSB | 58 | 65.94 in | 2.94 in | 60.75 in | 6.88 in | 59.69 in | 0.56 in | 58.12 in | Specified by purchaser | 780 lb | 63.44 in | 48 | 1.38 in |
| 60150WNSB | 60 | 67.94 in | 3.00 in | 63.00 in | 7.06 in | 61.81 in | 0.56 in | 60.12 in | Specified by purchaser | 850 lb | 65.44 in | 52 | 1.38 in |