Dimension for Welding Neck Flanges
Weld Neck flanges as per ASME B16.5/ANSI B16.5 1500#/1500 LBS in mm
| Pipe | Flange | Hub | Raised face | Drilling Template | Approx weight | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nom | OD | D | J | b | h | a | m | g | Number | I | K | |
| Size | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | kilo | |
| 1/2" | 21.3 | 120.6 | 22.3 | 60.4 | 21.3 | 38.1 | 35 | 4 | 22.3 | 82.5 | 1.87 | |
| 3/4" | 26.7 | 130 | 25.4 | 69.8 | 26.7 | 44.4 | 42.9 | 4 | 22.3 | 88.9 | 2.56 | |
| 1" | 33.4 | 149.3 | To | 28.4 | 73.1 | 33.4 | 52.3 | 50.8 | 4 | 25.4 | 101.6 | 3.74 |
| 1 1/4" | 42.2 | 158.7 | be | 28.4 | 73.1 | 42.2 | 63.5 | 63.5 | 4 | 25.4 | 111.2 | 4.33 |
| 1 1/2" | 48.3 | 177.8 | specified | 31.7 | 82.5 | 48.3 | 69.8 | 73.1 | 4 | 28.4 | 123.9 | 5.94 |
| 2' | 60.3 | 215.9 | by | 38.1 | 101.6 | 60.5 | 104.6 | 91.9 | 8 | 25.4 | 165.1 | 10.8 |
| 2 1/2" | 73 | 244.3 | purchaser | 41.1 | 104.6 | 73.2 | 123.9 | 104.6 | 8 | 28.4 | 190.5 | 15 |
| 3" | 88.9 | 266.7 | 47.7 | 117.3 | 88.9 | 133.3 | 127 | 8 | 31.7 | 203.2 | 19.9 | |
| 4" | 114.3 | 311.1 | 53.8 | 123.9 | 114.3 | 162 | 157.2 | 8 | 35 | 241.3 | 29.9 | |
| 5" | 141.3 | 374.6 | 73.1 | 155.4 | 141.2 | 196.8 | 185.6 | 8 | 41.1 | 292.1 | 55.4 | |
| 6" | 168.3 | 393.7 | 82.5 | 171.4 | 168.4 | 228.6 | 215.9 | 12 | 38.1 | 317.5 | 68.4 | |
| 8" | 219.1 | 482.6 | 91.9 | 212.8 | 219.2 | 292.1 | 269.7 | 12 | 44.4 | 393.7 | 117 | |
| 10" | 273 | 584.2 | 107.9 | 254 | 273 | 368.3 | 323.8 | 12 | 50.8 | 482.6 | 194 | |
| 12" | 323.8 | 673.1 | 123.9 | 282.4 | 323.8 | 450.8 | 381 | 16 | 53.8 | 571.5 | 288 | |
| 14" | 355.6 | 749.3 | 133.3 | 298.4 | 355.6 | 495.3 | 412.7 | 16 | 60.4 | 635 | 380 | |
| 16" | 406.4 | 825.5 | 146 | 311.1 | 406.4 | 552.4 | 469.9 | 16 | 66.5 | 704.8 | 485 | |
| 18" | 457.2 | 914.4 | 162 | 327.1 | 457.2 | 596.9 | 533.4 | 16 | 73.1 | 774.7 | 644 | |
| 20" | 508 | 984.2 | 177.8 | 355.6 | 508 | 641.3 | 584.2 | 16 | 79.2 | 831.8 | 775 | |
| 24" | 609.6 | 1168.4 | 203.2 | 406.4 | 609.6 | 762 | 692.1 | 16 | 91.9 | 990.6 | 1232 |
Weld Neck flanges as per ASME B16.5/ANSI B16.5 1500#/1500 LBS in inches
| Pipe | Flange | Hub | Raised face | Drilling Template | Approx weight | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nom | OD | D | J | b | h | a | m | g | Number | I | K | |
| Size | in. | in. | in. | in. | in. | in. | in | in. | in. | in. | Pounds | |
| 1/2" | 0.84 | 4.75 | 0.88 | 2.38 | 0.84 | 1.5 | 1.38 | 4 | 0.88 | 3.25 | 4.1 | |
| 3/4" | 1.05 | 5.12 | 1 | 2.75 | 1.05 | 1.75 | 1.69 | 4 | 0.88 | 3.5 | 5.6 | |
| 1" | 1.32 | 5.88 | To | 1.12 | 2.88 | 1.32 | 2.06 | 2 | 4 | 1 | 4 | 8.2 |
| 1 1/4" | 1.66 | 6.25 | be | 1.12 | 2.88 | 1.66 | 2.5 | 2.5 | 4 | 1 | 4.38 | 9.5 |
| 1 1/2" | 1.9 | 7 | specified | 1.25 | 3.25 | 1.9 | 2.75 | 2.88 | 4 | 1.12 | 4.88 | 13.1 |
| 2' | 2.38 | 8.5 | by | 1.5 | 4 | 2.38 | 4.12 | 3.62 | 8 | 1 | 6.5 | 23.8 |
| 2 1/2" | 2.88 | 9.62 | purchaser | 1.62 | 4.12 | 2.88 | 4.88 | 4.12 | 8 | 1.12 | 7.5 | 33 |
| 3" | 3.5 | 10.5 | 1.88 | 4.62 | 3.5 | 5.25 | 5 | 8 | 1.25 | 8 | 43.8 | |
| 4" | 4.5 | 12.25 | 2.12 | 4.88 | 4.5 | 6.38 | 6.19 | 8 | 1.38 | 9.5 | 65.9 | |
| 5" | 5.563 | 14.75 | 2.88 | 6.12 | 5.56 | 7.75 | 7.31 | 8 | 1.62 | 11.5 | 122 | |
| 6" | 6.625 | 15.5 | 3.25 | 6.75 | 6.63 | 9 | 8.5 | 12 | 1.5 | 12.5 | 151 | |
| 8" | 8.625 | 19 | 3.62 | 8.38 | 8.63 | 11.5 | 10.62 | 12 | 1.75 | 15.5 | 258 | |
| 10" | 10.75 | 23 | 4.25 | 10 | 10.75 | 14.5 | 12.75 | 12 | 2 | 19 | 427 | |
| 12" | 12.75 | 26.5 | 4.88 | 11.12 | 12.75 | 17.75 | 15 | 16 | 2.12 | 22.5 | 634 | |
| 14" | 14 | 29.5 | 5.25 | 11.75 | 14 | 19.5 | 16.25 | 16 | 2.38 | 25 | 837 | |
| 16" | 16 | 32.5 | 5.75 | 12.25 | 16 | 21.75 | 18.5 | 16 | 2.62 | 27.75 | 1068 | |
| 18" | 18 | 36 | 6.38 | 12.88 | 18 | 23.5 | 21 | 16 | 2.88 | 30.5 | 1419 | |
| 20" | 20 | 38.75 | 7 | 14 | 20 | 25.25 | 23 | 16 | 3.12 | 32.75 | 1707 | |
| 24" | 24 | 46 | 8 | 16 | 24 | 30 | 27.25 | 16 | 3.62 | 39 | 2714 |
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