ANSI B16.5 Class 150 Slip-On Flanges
150 CLASS
| NPS | Outside Diameter (O) | Thickness (T) | Hub Diameter (X) | Length Through Hub (Y) | Bore (B) | Diameter of Bolt Circle (C) | Diameter of Bolt Holes (in) | Number of Bolts |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 89 | 9.7 | 30 | 14 | 22.4 | 60.5 | 5/8 | 4 |
| 3/4 | 99 | 11.2 | 38 | 14 | 27.7 | 69.8 | 5/8 | 4 |
| 1 | 108 | 12.7 | 49 | 16 | 34.5 | 79.2 | 5/8 | 4 |
| 1 1/4 | 117 | 14.2 | 59 | 19 | 43.2 | 88.9 | 5/8 | 4 |
| 1 1/2 | 127 | 15.9 | 65 | 21 | 49.5 | 98.6 | 5/8 | 4 |
| 2 | 152 | 17.5 | 78 | 24 | 61.9 | 120.6 | 3/4 | 4 |
| 2 1/2 | 178 | 20.6 | 90 | 27 | 74.7 | 139.7 | 3/4 | 4 |
| 3 | 190 | 22.4 | 108 | 28 | 90.7 | 152.4 | 3/4 | 4 |
| 3 1/2 | 216 | 22.4 | 122 | 30 | 103.4 | 177.8 | 3/4 | 8 |
| 4 | 229 | 22.4 | 135 | 32 | 116.1 | 190.5 | 3/4 | 8 |
| 5 | 254 | 22.4 | 164 | 35 | 143.8 | 215.9 | 7/8 | 8 |
| 6 | 279 | 23.9 | 192 | 38 | 170.7 | 241.3 | 7/8 | 8 |
| 8 | 343 | 26.9 | 246 | 43 | 221.5 | 298.4 | 7/8 | 8 |
| 10 | 406 | 28.4 | 305 | 48 | 276.4 | 362 | 1 | 12 |
| 12 | 483 | 30.2 | 365 | 54 | 327.2 | 431.8 | 1 | 12 |
| 14 | 553 | 33.3 | 400 | 56 | 359.2 | 476.2 | 1 1/8 | 12 |
| 16 | 597 | 35.1 | 457 | 62 | 410.5 | 539.8 | 1 1/8 | 16 |
| 18 | 635 | 38.1 | 505 | 67 | 461.8 | 577.8 | 1 1/4 | 16 |
| 20 | 698 | 41.1 | 559 | 71 | 513.1 | 635 | 1 1/4 | 20 |
| 22 | 749 | 44.4 | 610 | 78 | 564.4 | 692.2 | 1 3/8 | 20 |
| 24 | 813 | 46 | 663 | 81 | 616 | 749.3 | 1 3/8 | 20 |
| Nominal Pipe Size | Outside Diameter (O) | Thickness (T) | Raised Face Diameter (R) | Length Thru Hub (Y) | Hub Diameter (X) | Bore (B) | Approximate Weight | Bolt Circle (C) | Number of Holes | Diameter of Holes |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.50 mm | 0.44 mm | 1.38 mm | 0.63 mm | 1.19 mm | 0.88 mm | 1 lb | 2.38 mm | 4 | 0.63 mm |
| 3/4 | 3.88 mm | 0.50 mm | 1.69 mm | 0.63 mm | 1.50 mm | 1.09 mm | 2 lb | 2.75 mm | 4 | 0.63 mm |
| 1 | 4.25 mm | 0.56 mm | 2.00 mm | 0.69 mm | 1.94 mm | 1.36 mm | 2 lb | 3.13 mm | 4 | 0.63 mm |
| 1 1/4 | 4.63 mm | 0.63 mm | 2.50 mm | 0.81 mm | 2.31 mm | 1.70 mm | 3 lb | 3.50 mm | 4 | 0.63 mm |
| 1 1/2 | 5.00 mm | 0.69 mm | 2.88 mm | 0.88 mm | 2.56 mm | 1.95 mm | 3 lb | 3.88 mm | 4 | 0.63 mm |
| 2 | 6.00 mm | 0.75 mm | 3.63 mm | 1.00 mm | 3.06 mm | 2.44 mm | 5 lb | 4.75 mm | 4 | 0.75 mm |
| 2 1/2 | 7.00 mm | 0.88 mm | 4.13 mm | 1.13 mm | 3.56 mm | 2.94 mm | 7 lb | 5.50 mm | 4 | 0.75 mm |
| 3 | 7.50 mm | 0.94 mm | 5.00 mm | 1.19 mm | 4.25 mm | 3.57 mm | 8 lb | 6.00 mm | 4 | 0.75 mm |
| 3 1/2 | 8.50 mm | 0.94 mm | 5.50 mm | 1.25 mm | 4.81 mm | 4.07 mm | 11 lb | 7.00 mm | 8 | 0.75 mm |
| 4 | 9.00 mm | 0.94 mm | 6.19 mm | 1.31 mm | 5.31 mm | 4.57 mm | 13 lb | 7.50 mm | 8 | 0.75 mm |
| 5 | 10.00 mm | 0.94 mm | 7.31 mm | 1.44 mm | 6.44 mm | 5.66 mm | 15 lb | 8.50 mm | 8 | 0.88 mm |
| 6 | 11.00 mm | 1.00 mm | 8.50 mm | 1.56 mm | 7.56 mm | 6.72 mm | 19 lb | 9.50 mm | 8 | 0.88 mm |
| 8 | 13.50 mm | 1.13 mm | 10.63 mm | 1.75 mm | 9.69 mm | 8.72 mm | 30 lb | 11.75 mm | 8 | 0.88 mm |
| 10 | 16.00 mm | 1.19 mm | 12.75 mm | 1.94 mm | 12.00 mm | 10.88 mm | 43 lb | 14.25 mm | 12 | 1.00 mm |
| 12 | 19.00 mm | 1.25 mm | 15.00 mm | 2.19 mm | 14.38 mm | 12.88 mm | 64 lb | 17.00 mm | 12 | 1.00 mm |
| 14 | 21.00 mm | 1.38 mm | 16.25 mm | 2.25 mm | 15.75 mm | 14.14 mm | 90 lb | 18.75 mm | 12 | 1.13 mm |
| 16 | 23.50 mm | 1.44 mm | 18.50 mm | 2.50 mm | 18.00 mm | 16.16 mm | 98 lb | 21.25 mm | 16 | 1.13 mm |
| 18 | 25.00 mm | 1.56 mm | 21.00 mm | 2.69 mm | 19.88 mm | 18.18 mm | 130 lb | 22.75 mm | 16 | 1.25 mm |
| 20 | 27.50 mm | 1.69 mm | 23.00 mm | 2.88 mm | 22.00 mm | 20.20 mm | 165 lb | 25.00 mm | 20 | 1.25 mm |
| 22 | 29.50 mm | 1.81 mm | 25.25 mm | 3.13 mm | 24.25 mm | 22.22 mm | 185 lb | 27.25 mm | 20 | 1.38 mm |
| 24 | 32.00 mm | 1.88 mm | 27.25 mm | 3.25 mm | 26.13 mm | 24.25 mm | 220 lb | 29.50 mm | 20 | 1.38 mm |