| NPS |
Flange OD (O) |
Thickness (T) |
Hub Diameter (X) |
Hub Length (Y) |
Bore (B) |
Corner Bore Radius (r) |
Bolt Circle Dia. |
No. of Holes |
Hole Dia. |
Approx. Weight LBS |
Approx. Weight KGS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 5.25 | 1.19 | 1.69 | 1.56 | 0.90 | 0.12 | 3.50 | 4 | 0.88 | - | - |
| 3/4 | 5.50 | 1.25 | 2.00 | 1.69 | 1.11 | 0.12 | 3.75 | 4 | 0.88 | - | - |
| 1 | 6.25 | 1.38 | 2.25 | 1.88 | 1.38 | 0.12 | 4.25 | 4 | 1.00 | - | - |
| 1-1/4 | 7.25 | 1.50 | 2.88 | 2.06 | 1.72 | 0.19 | 5.13 | 4 | 1.13 | - | - |
| 1-1/2 | 8.00 | 1.75 | 3.12 | 2.38 | 1.97 | 0.25 | 5.75 | 4 | 1.25 | - | - |
| 2 | 9.25 | 2.00 | 3.75 | 2.75 | 2.46 | 0.31 | 6.75 | 8 | 1.13 | - | - |
| 2-1/2 | 10.50 | 2.25 | 4.50 | 3.12 | 2.97 | 0.31 | 7.75 | 8 | 1.25 | - | - |
| 3 | 12.00 | 2.62 | 5.25 | 3.62 | 3.60 | 0.38 | 9.00 | 8 | 1.38 | - | - |
| 4 | 14.00 | 3.00 | 6.50 | 4.25 | 4.60 | 0.44 | 10.75 | 8 | 1.63 | - | - |
| 5 | 16.50 | 3.62 | 8.00 | 5.12 | 5.69 | 0.44 | 12.75 | 8 | 1.88 | - | - |
| 6 | 19.00 | 4.25 | 9.25 | 6.00 | 6.75 | 0.50 | 14.50 | 8 | 2.13 | - | - |
| 8 | 21.75 | 5.00 | 12.00 | 7.00 | 8.75 | 0.50 | 17.25 | 12 | 2.13 | - | - |
| 10 | 26.50 | 6.50 | 14.75 | 9.00 | 10.92 | 0.50 | 21.25 | 12 | 2.63 | - | - |
| 12 | 30.00 | 7.25 | 17.38 | 10.00 | 12.92 | 0.50 | 24.38 | 12 | 2.88 | - | - |
| NPS |
Flange OD (O) |
Thickness (T) |
Hub Diameter (X) |
Hub Length (Y) |
Bore (B) |
Corner Bore Radius (r) |
Bolt Circle Dia. |
No. of Holes |
Hole Dia. |
Approx. Weight LBS |
Approx. Weight KGS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 133 | 30.2 | 43 | 40 | 22.9 | 3 | 88.90 | 4 | 22.35 | - | - |
| 3/4 | 140 | 31.8 | 51 | 43 | 28.2 | 3 | 95.25 | 4 | 22.35 | - | - |
| 1 | 159 | 35.1 | 57 | 48 | 35.1 | 3 | 107.95 | 4 | 25.4 | - | - |
| 1-1/4 | 184 | 38.1 | 73 | 52 | 43.7 | 5 | 130.30 | 4 | 28.70 | - | - |
| 1-1/2 | 203 | 44.4 | 79 | 60 | 50.0 | 6 | 146.05 | 4 | 31.75 | - | - |
| 2 | 235 | 50.8 | 95 | 70 | 62.5 | 8 | 171.45 | 8 | 28.70 | - | - |
| 2-1/2 | 267 | 57.2 | 114 | 79 | 75.4 | 8 | 196.85 | 8 | 31.75 | - | - |
| 3 | 305 | 66.5 | 133 | 92 | 91.4 | 10 | 228.60 | 8 | 35.05 | - | - |
| 4 | 356 | 76.2 | 165 | 108 | 116.8 | 11 | 273.05 | 8 | 41.40 | - | - |
| 5 | 419 | 91.9 | 203 | 130 | 144.5 | 11 | 323.85 | 8 | 47.75 | - | - |
| 6 | 483 | 108.0 | 235 | 152 | 171.4 | 13 | 368.30 | 8 | 54.10 | - | - |
| 8 | 552 | 127.0 | 305 | 178 | 222.2 | 13 | 438.15 | 12 | 54.19 | - | - |
| 10 | 673 | 165.1 | 375 | 229 | 277.4 | 13 | 539.75 | 12 | 66.80 | - | - |
| 12 | 762 | 184.2 | 441 | 254 | 328.2 | 13 | 619.25 | 12 | 73.15 | - | - |
Dimensions are based on ASME B16.5 Class 2500 flange requirements. Refer to the applicable standard for complete dimensional requirements.
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