Welding neck flanges: the welding neck flange is normally referred to as the "high hup" flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. The welding neck flange is the best designed butt-welded flange of those currently available because of its inherent structural value. It is expensive because of the design.
Others:
| Nominal pipe size (mm) | Outside diameter / raised face, lapped, large male and large tongue / R (mm) | Outside diameter / small male / S (mm) | Outside diameter / small tongue / T (mm) | I.D. of large and small tongue / U (mm) | Outside diameter / large female and large groove / W (mm) | Outside diameter / large female and large groove / L (mm) | Outside diameter / small female / X (mm) | Outside diameter / small groove / Y (mm) | I.D. of large and groove / Z (mm) | Height / raised face and 300 ST'DS (mm) | Height / raised face, large and small male and tongue classes 400,250,ST'DS (mm) | Depth of groove or female (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 35.1 | 18.3 | 35.1 | 25.4 | 36.6 | 46.0 | 19.8 | 36.6 | 23.9 | 1.5 | 6.4 | 4.8 |
| 3/4 | 42.9 | 23.9 | 42.9 | 33.3 | 44.5 | 53.8 | 25.4 | 44.5 | 31.8 | 1.5 | 6.4 | 4.8 |
| 1 | 50.8 | 30.2 | 47.8 | 38.1 | 52.3 | 62.0 | 31.8 | 49.3 | 36.6 | 1.5 | 6.4 | 4.8 |
| 1-1/4 | 63.5 | 38.1 | 57.2 | 47.8 | 65.0 | 74.7 | 39.6 | 58.7 | 46.0 | 1.5 | 6.4 | 4.8 |
| 1-1/2 | 73.2 | 44.5 | 63.5 | 53.8 | 74.7 | 84.1 | 46.0 | 65.0 | 52.3 | 1.5 | 6.4 | 4.8 |
| 2 | 91.9 | 57.2 | 82.6 | 73.2 | 93.7 | 103.1 | 58.7 | 84.1 | 71.4 | 1.5 | 6.4 | 4.8 |
| 2-1/2 | 104.6 | 68.3 | 95.3 | 85.9 | 106.4 | 115.8 | 69.9 | 96.8 | 84.1 | 1.5 | 6.4 | 4.8 |
| 3 | 127.0 | 84.1 | 117.3 | 108.0 | 128.5 | 138.2 | 85.9 | 119.1 | 106.4 | 1.5 | 6.4 | 4.8 |
| 3-1/2 | 139.7 | 96.8 | 130.0 | 120.7 | 141.2 | 150.9 | 98.6 | 131.8 | 119.1 | 1.5 | 6.4 | 4.8 |
| 4 | 157.2 | 109.5 | 144.5 | 131.8 | 158.8 | 168.1 | 111.3 | 146.1 | 130.0 | 1.5 | 6.4 | 4.8 |
| 5 | 185.7 | 136.7 | 173.0 | 160.3 | 187.5 | 196.9 | 138.2 | 174.8 | 158.8 | 1.5 | 6.4 | 4.8 |
| 6 | 215.9 | 162.1 | 203.2 | 190.5 | 217.4 | 227.1 | 163.6 | 204.7 | 189.0 | 1.5 | 6.4 | 4.8 |
| 8 | 269.7 | 212.9 | 254.0 | 238.3 | 271.5 | 280.9 | 214.4 | 255.4 | 236.5 | 1.5 | 6.4 | 4.8 |
| 10 | 323.9 | 266.7 | 304.8 | 285.8 | 325.4 | 335.0 | 268.2 | 306.3 | 284.2 | 1.5 | 6.4 | 4.8 |
| 12 | 381.0 | 317.5 | 362.0 | 342.9 | 382.5 | 392.2 | 319.0 | 363.5 | 341.4 | 1.5 | 6.4 | 4.8 |
| 14 | 412.8 | 349.3 | 393.7 | 374.7 | 414.3 | 423.9 | 350.8 | 395.2 | 373.1 | 1.5 | 6.4 | 4.8 |
| 16 | 469.9 | 400.1 | 447.5 | 425.5 | 471.4 | 481.1 | 401.6 | 449.3 | 423.9 | 1.5 | 6.4 | 4.8 |
| 18 | 533.4 | 450.9 | 511.0 | 489.0 | 534.9 | 544.6 | 452.4 | 512.8 | 478.4 | 1.5 | 6.4 | 4.8 |
| 20 | 584.2 | 501.7 | 558.8 | 533.4 | 585.7 | 595.4 | 503.2 | 560.3 | 531.9 | 1.5 | 6.4 | 4.8 |
| 24 | 692.2 | 603.3 | 666.8 | 641.4 | 693.7 | 703.3 | 604.8 | 668.3 | 639.8 | 1.5 | 6.4 | 4.8 |
Ordering information:
- Minimum Order: Negotiable
- FOB: Korea