| NPS |
Flange OD (O) |
Thickness (T) |
Bolt Circle Dia. |
No. of Holes |
Hole Dia. |
Approx. Weight LBS |
Approx. Weight KGS |
|---|---|---|---|---|---|---|---|
| 1/2 | 3.50 | 0.38 | 2.38 | 4 | 0.63 | 2 | 0.9 |
| 3/4 | 3.88 | 0.44 | 2.75 | 4 | 0.63 | 2 | 0.9 |
| 1 | 4.25 | 0.50 | 3.13 | 4 | 0.63 | 2 | 0.9 |
| 1-1/4 | 4.62 | 0.56 | 3.50 | 4 | 0.63 | 3 | 1.4 |
| 1-1/2 | 5.00 | 0.62 | 3.88 | 4 | 0.63 | 4 | 1.8 |
| 2 | 6.00 | 0.69 | 4.75 | 4 | 0.75 | 5 | 2.3 |
| 2-1/2 | 7.00 | 0.81 | 5.50 | 4 | 0.75 | 7 | 3.2 |
| 3 | 7.50 | 0.88 | 6.00 | 4 | 0.75 | 9 | 4.1 |
| 3-1/2 | 8.50 | 0.88 | 7.00 | 8 | 0.75 | 13 | 5.9 |
| 4 | 9.00 | 0.88 | 7.50 | 8 | 0.75 | 17 | 7.7 |
| 5 | 10.00 | 0.88 | 8.50 | 8 | 0.88 | 20 | 9 |
| 6 | 11.00 | 0.94 | 9.50 | 8 | 0.88 | 27 | 12.2 |
| 8 | 13.50 | 1.06 | 11.75 | 8 | 0.88 | 47 | 21.3 |
| 10 | 16.00 | 1.12 | 14.25 | 12 | 1.00 | 70 | 31.7 |
| 12 | 19.00 | 1.19 | 17.00 | 12 | 1.00 | 122.1 | 55.4 |
| 14 | 21.00 | 1.31 | 18.75 | 12 | 1.13 | 140 | 63.5 |
| 16 | 23.50 | 1.38 | 21.25 | 16 | 1.13 | 178.6 | 81.6 |
| 18 | 25.00 | 1.50 | 22.75 | 16 | 1.25 | 218.3 | 99 |
| 20 | 27.50 | 1.62 | 25.00 | 20 | 1.25 | 282.9 | 128.3 |
| 22 | 29.50 | 1.75 | 27.25 | 20 | 1.38 | 352.3 | 159.8 |
| 24 | 32 | 1.81 | 29.50 | 20 | 1.38 | 426.6 | 193.5 |
| NPS |
Flange OD (O) |
Thickness (T) |
Bolt Circle Dia. |
No. of Holes |
Hole Dia. |
Approx. Weight LBS |
Approx. Weight KGS |
|---|---|---|---|---|---|---|---|
| 1/2 | 89 | 9.7 | 60.45 | 4 | 16 | 2 | 0.9 |
| 3/4 | 99 | 11.2 | 69.85 | 4 | 16 | 2 | 0.9 |
| 1 | 108 | 12.7 | 79.50 | 4 | 16 | 2 | 0.9 |
| 1-1/4 | 117 | 14.2 | 88.9 | 4 | 16 | 3 | 1.4 |
| 1-1/2 | 127 | 15.9 | 98.55 | 4 | 16 | 4 | 1.8 |
| 2 | 152 | 17.5 | 120.65 | 4 | 19.05 | 5 | 2.3 |
| 2-1/2 | 178 | 20.6 | 139.7 | 4 | 19.05 | 7 | 3.2 |
| 3 | 190 | 22.4 | 152.4 | 4 | 19.05 | 9 | 4.1 |
| 3-1/2 | 216 | 22.4 | 177.8 | 8 | 19.05 | 13 | 5.9 |
| 4 | 229 | 22.4 | 190.5 | 8 | 19.05 | 17 | 7.7 |
| 5 | 254 | 22.4 | 215.9 | 8 | 22.35 | 20 | 9 |
| 6 | 279 | 23.9 | 241.3 | 8 | 22.35 | 27 | 12.2 |
| 8 | 343 | 26.9 | 298.45 | 8 | 22.35 | 47 | 21.3 |
| 10 | 406 | 28.4 | 361.95 | 12 | 25.4 | 70 | 31.7 |
| 12 | 483 | 30.2 | 431.8 | 12 | 25.4 | 122.1 | 55.4 |
| 14 | 553 | 33.3 | 476.25 | 12 | 28.70 | 140 | 63.5 |
| 16 | 597 | 35.1 | 539.75 | 16 | 28.70 | 178.6 | 81.6 |
| 18 | 635 | 38.1 | 577.85 | 16 | 31.75 | 218.3 | 99 |
| 20 | 698 | 41.1 | 635 | 20 | 31.75 | 282.9 | 128.3 |
| 22 | 749 | 44.4 | 692.15 | 20 | 35.05 | 352.3 | 159.8 |
| 24 | 813 | 46 | 749.3 | 20 | 35.05 | 426.6 | 193.5 |
Dimensions are based on ASME B16.5 Class 150 flange requirements. Refer to the applicable standard for complete dimensional requirements.
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