Dimensions for Welding Neck Flanges
2500 lb/sq. in
Weld Neck flanges as per ASME B16.5/ANSI B16.5 2500#/2500 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 | 133.4 | To be | 30.2 | 73.2 | 21.3 | 42.9 | 35.1 | 4 | 22.4 | 88.9 | 3.12 | |||
3/4" | 26.7 | 139.7 | Specified | 31.8 | 79.2 | 26.7 | 50.8 | 42.9 | 4 | 22.4 | 95.3 | 3.7 | |||
1" | 33.4 | 158.8 | by | 35.1 | 88.9 | 33.5 | 57.2 | 50.8 | 4 | 25.4 | 108 | 5.24 | |||
1 1/4" | 42.2 | 184.2 | user | 38.1 | 95.3 | 42.2 | 73.2 | 63.5 | 4 | 28.4 | 130 | 7.74 | |||
1 1/2" | 48.3 | 203.2 | - | 44.5 | 111.3 | 48.3 | 79.2 | 73.2 | 4 | 31.8 | 146.1 | 10.9 | |||
2 | 60.3 | 235 | - | 50.8 | 127 | 60.5 | 95.3 | 91.9 | 8 | 28.4 | 171.5 | 16.2 | |||
2 1/2" | 73 | 266.7 | - | 57.2 | 142.7 | 73.2 | 114.3 | 104.6 | 8 | 31.8 | 196.9 | 23.7 | |||
3 | 88.9 | 304.8 | - | 66.5 | 168.1 | 88.9 | 133.4 | 127 | 8 | 35.1 | 228.6 | 36.2 | |||
4" | 114.3 | 355.6 | - | 76.2 | 190.5 | 114.3 | 165.1 | 157.2 | 8 | 41.1 | 273.1 | 55.3 | |||
5" | 141.3 | 419.1 | - | 91.9 | 228.6 | 141.2 | 203.2 | 185.7 | 8 | 47.8 | 323.9 | 92.5 | |||
6" | 168.3 | 482.6 | - | 108 | 273.1 | 168.4 | 235 | 215.9 | 8 | 53.8 | 368.3 | 143 | |||
8" | 219.1 | 552.5 | - | 127 | 317.5 | 219.2 | 304.8 | 269.7 | 12 | 53.8 | 438.2 | 215 | |||
10" | 273 | 673.1 | - | 165.1 | 419.1 | 273.1 | 374.7 | 323.9 | 12 | 66.5 | 539.8 | 406 | |||
12" | 323.8 | 762 | - | 184.2 | 463.6 | 323.9 | 441.5 | 381 | 12 | 73.2 | 619.3 | 572 |
Weld Neck flanges as per ASME B16.5/ANSI B16.5 2500#/2500 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 | 5.25 | To be | 1.19 | 2.88 | 0.84 | 1.69 | 1.38 | 4 | 0.88 | 3.5 | 6.9 |
3/4" | 1.05 | 5.5 | Specified | 1.25 | 3.12 | 1.05 | 2 | 1.69 | 4 | 0.88 | 3.75 | 8.1 |
1" | 1.315 | 6.25 | by | 1.38 | 3.5 | 1.32 | 2.25 | 2 | 4 | 1 | 4.25 | 11.5 |
1 1/4" | 1.66 | 7.25 | user | 1.5 | 3.75 | 1.66 | 2.88 | 2.5 | 4 | 1.12 | 5.12 | 17 |
1 1/2" | 1.9 | 8 | _ | 1.75 | 4.38 | 1.9 | 3.12 | 2.88 | 4 | 1.25 | 5.75 | 24 |
2 | 2.375 | 9.25 | _ | 2 | 5 | 2.38 | 3.75 | 3.62 | 8 | 1.12 | 6.75 | 35.7 |
2 1/2" | 2.875 | 10.5 | _ | 2.25 | 5.62 | 2.88 | 4.5 | 4.12 | 8 | 1.25 | 7.75 | 52.2 |
3 | 3.5 | 12 | _ | 2.62 | 6.62 | 3.5 | 5.25 | 5 | 8 | 1.38 | 9 | 79.7 |
4" | 4.5 | 14 | _ | 3 | 7.5 | 4.5 | 6.5 | 6.19 | 8 | 1.62 | 10.75 | 122 |
5" | 5.563 | 16.5 | _ | 3.62 | 9 | 5.56 | 8 | 7.31 | 8 | 1.88 | 12.75 | 204 |
6" | 6.625 | 19 | _ | 4.25 | 10.75 | 6.63 | 9.25 | 8.5 | 8 | 2.12 | 14.5 | 315 |
8" | 8.625 | 21.75 | _ | 5 | 12.5 | 8.63 | 12 | 10.62 | 12 | 2.12 | 17.25 | 474 |
10" | 10.75 | 26.5 | _ | 6.5 | 16.5 | 10.75 | 14.75 | 12.75 | 12 | 2.62 | 21.25 | 894 |
12" | 12.75 | 30 | _ | 7.25 | 18.25 | 12.75 | 17.38 | 15 | 12 | 2.88 | 24.38 | 1260 |
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