Long Weld Neck Flange Dimensions

Long Weld Neck Flange Class 150 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 110 12.7 49 33.4 50.8 2 79.4 as per requirement 4 1/2 55
1 1/2 40 125 15.9 65 48.3 73 2 98.4 as per requirement 4 1/2 65
1 1/4 32 115 14.3 59 42.2 63.5 2 88.9 as per requirement 4 1/2 55
2 50 150 17.5 78 60.3 92.1 2 120.7 as per requirement 4 5/8 70
1/2 15 90 9.6 30 21.3 34.9 2 60.3 as per requirement 4 1/2 50
3/4 20 100 11.2 38 26.7 42.9 2 69.9 as per requirement 4 1/2 50
2 1/2 65 180 20.7 90 73 104.8 2 139.7 as per requirement 4 5/8 75
5 125 255 22.3 164 141.3 185.7 2 215.9 as per requirement 8 3/4 85
6 150 280 23.9 192 168.3 215.9 2 241.3 as per requirement 8 3/4 85
8 200 345 27 246 219.1 269.9 2 298.5 as per requirement 8 3/4 90
10 250 405 28.6 305 273 323.8 2 362 as per requirement 12 7/8 100
16 400 595 35 457 406.4 469.9 2 539.8 as per requirement 16 1 115
18 450 635 38.1 505 457.2 533.4 2 577.9 as per requirement 16 1 1/8 125
20 500 700 41.3 559 508 584.2 2 635 as per requirement 20 1 1/8 140
24 600 815 46.1 663 610 692.2 2 749.3 as per requirement 20 1 1/4 150
3 80 190 22.3 108 88.9 127 2 152.4 as per requirement 4 5/8 75
3 1/2 90 215 22.3 122 101.6 139.7 2 177.8 as per requirement 8 5/8 75
4 100 230 22.3 135 114.3 157.2 2 190.5 as per requirement 8 5/8 75
12 300 485 30.2 365 323.8 381 2 431.8 as per requirement 12 7/8 100
14 350 535 33.4 400 355.6 412.8 2 476.3 as per requirement 12 1 115

Long Weld Neck Flange Class 300 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 125 15.9 54 33.4 50.8 2 88.9 as per requirement 4 5/8 65
1 1/4 32 135 17.5 64 42.2 63.5 2 98.4 as per requirement 4 5/8 70
1 1/2 40 155 19.1 70 48.3 73 2 114.3 as per requirement 4 3/4 75
1/2 15 95 12.7 38 21.3 34.9 2 66.7 as per requirement 4 1/2 55
3/4 20 115 14.3 48 26.7 42.9 2 82.6 as per requirement 4 5/8 65
2 50 165 20.7 84 60.3 92.1 2 127 as per requirement 8 5/8 75
2 1/2 65 190 23.9 100 73 104.8 2 149.2 as per requirement 8 3/4 85
4 100 255 30.2 146 114.3 157.2 2 200 as per requirement 8 3/4 95
5 125 280 33.4 178 141.3 185.7 2 235 as per requirement 8 3/4 110
6 150 320 35 206 168.3 215.9 2 269.9 as per requirement 12 3/4 110
3 80 210 27 117 88.9 127 2 168.3 as per requirement 8 3/4 90
3 1/2 90 230 28.6 133 101.6 139.7 2 184.2 as per requirement 8 3/4 95
14 350 585 52.4 425 355.6 412.8 2 514.4 as per requirement 20 1 1/8 160
16 400 650 55.6 483 406.4 469.9 2 571.5 as per requirement 20 1 1/4 165
24 600 915 68.3 702 610 692.2 2 812.8 as per requirement 24 1 1/2 205
18 450 710 58.8 533 457 533.4 2 628.6 as per requirement 24 1 1/4 170
8 200 380 39.7 260 219.1 269.9 2 330.2 as per requirement 12 7/8 120
10 250 445 46.1 321 273 323.8 2 387.4 as per requirement 16 1 140
12 300 520 49.3 375 323.8 381 2 450.8 as per requirement 16 1 1/8 145
20 500 775 62 587 508 584.2 2 685.8 as per requirement 24 1 1/4 185

Long Weld Neck Flange Class 400 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 125 17.5 54 33.4 50.8 7 88.9 as per requirement 4 5/8 90
1 1/4 32 135 20.7 64 42.2 63.5 7 98.4 as per requirement 4 5/8 95
1 1/2 40 155 22.3 70 48.3 73 7 114.3 as per requirement 4 3/4 110
1/2 15 95 14.3 38 21.3 34.9 7 66.7 as per requirement 4 1/2 75
3/4 20 115 15.9 48 26.7 42.9 7 82.6 as per requirement 4 5/8 90
3 1/2 90 230 35 133 101.6 N/A 7 184.2 as per requirement 8 7/8 140
4 100 255 35 146 114.3 157.2 7 200 as per requirement 8 7/8 140
5 125 280 38.1 178 141.3 185.7 7 235 as per requirement 8 7/8 145
2 50 165 25.4 84 60.3 92.1 7 127 as per requirement 8 5/8 110
2 1/2 65 190 28.6 100 73 104.8 7 149.2 as per requirement 8 3/4 120
3 80 210 31.8 117 88.9 127 7 168.3 as per requirement 8 3/4 125
6 150 320 41.3 206 168.3 215.9 7 269.9 as per requirement 12 7/8 150
14 350 585 60.4 425 355.6 412.8 7 514.4 as per requirement 20 1 1/4 210
16 400 650 63.5 483 406.4 469.9 7 571.5 as per requirement 20 1 3/8 220
8 200 380 47.7 260 219.1 269.9 7 330 as per requirement 12 1 170
20 500 775 69.9 587 508 584.2 7 685.8 as per requirement 24 1 1/2 240
24 600 915 76.2 702 610 692.2 7 812.8 as per requirement 24 1 3/4 265
10 250 445 54 321 273 323.8 7 387.4 as per requirement 16 1 1/8 190
12 300 520 57.2 375 323.8 381 7 450.8 as per requirement 16 1 1/4 205
18 450 710 66.7 533 457 533.4 7 628.6 as per requirement 24 1 3/8 230

Long Weld Neck Flange Class 600 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 125 17.5 54 33.4 50.8 7 88.9 as per requirement 4 5/8 90
1 1/4 32 135 20.7 64 42.2 63.5 7 98.4 as per requirement 4 5/8 95
1 1/2 40 155 22.3 70 48.3 73 7 114.3 as per requirement 4 3/4 110
1/2 15 95 14.3 38 21.3 34.9 7 66.7 as per requirement 4 1/2 75
3/4 20 115 15.9 48 26.7 42.9 7 82.6 as per requirement 4 5/8 90
2 50 165 25.4 84 60.3 92.1 7 127 as per requirement 8 5/8 110
2 1/2 65 190 28.6 100 73 104.8 7 149.2 as per requirement 8 3/4 120
6 150 355 47.7 222 168.3 215.9 7 292.1 as per requirement 12 1 170
8 200 420 55.6 273 219.1 269.9 7 349.2 as per requirement 12 1 1/8 190
10 250 510 63.5 343 273 323.8 7 431.8 as per requirement 16 1 1/4 215
12 300 560 66.7 400 323.8 381 7 489 as per requirement 20 1 1/4 220
3 80 210 31.8 117 88.9 127 7 168.3 as per requirement 8 3/4 125
3 1/2 90 230 35 133 101.6 N/A 7 184.2 as per requirement 8 7/8 140
4 100 275 38.1 152 114.3 157.2 7 215.9 as per requirement 8 7/8 145
18 450 745 82.6 546 457 533.4 7 654 as per requirement 20 1 5/8 275
5 125 330 44.5 189 141.3 185.7 7 266.7 as per requirement 8 1 165
14 350 605 69.9 432 355.6 412.8 7 527 as per requirement 20 1 3/8 235
16 400 685 76.2 495 406.4 469.9 7 603.2 as per requirement 20 1 1/2 255
20 500 815 88.9 610 508 584.2 7 723.9 as per requirement 24 1 5/8 285

Long Weld Neck Flange Class 900 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 150 28.6 52 33.4 50.8 7 101.6 as per requirement 4 7/8 125
1 1/4 32 160 28.6 64 42.2 63.5 7 111.1 as per requirement 4 7/8 125
1 1/2 40 180 31.8 70 48.3 73 7 123.8 as per requirement 4 1 140
1/2 15 120 22.3 38 21.3 34.9 7 82.6 as per requirement 4 3/4 110
3/4 20 130 25.4 44 26.7 42.9 7 88.9 as per requirement 4 3/4 115
2 50 215 38.1 105 60.3 92.1 7 165.1 as per requirement 8 7/8 145
2 1/2 65 245 41.3 124 73 104.8 7 190.5 as per requirement 8 1 160
3 80 240 38.1 127 88.9 127 7 190.5 as per requirement 8 7/8 145
4 100 290 44.5 159 114.3 157.2 7 235 as per requirement 8 1 1/8 170
6 150 380 55.6 235 168.3 215.9 7 317.5 as per requirement 12 1 1/8 190
8 200 470 63.5 298 219.1 269.9 7 393.7 as per requirement 12 1 3/8 220
10 250 545 69.9 368 273 323.8 7 469.9 as per requirement 16 1 3/8 235
5 125 350 50.8 190 141.3 185.7 7 279.4 as per requirement 8 1 1/4 190
12 300 610 79.4 419 323.8 381 7 533.4 as per requirement 20 1 3/8 255
20 500 855 108 622 508 584.2 7 749.3 as per requirement 20 2 350
14 350 640 85.8 451 355.6 412.8 7 558.8 as per requirement 20 1 1/2 275
16 400 705 88.9 508 406.4 469.9 7 616 as per requirement 20 1 5/8 285
18 450 785 101.6 565 457 533.4 7 685.8 as per requirement 20 1 7/8 325
24 600 1040 139.7 749 610 692.2 7 901.7 as per requirement 20 2 1/2 440

Long Weld Neck Flange Class 1500 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 150 28.6 52 33.4 50.8 7 101.6 as per requirement 4 7/8 125
1 1/4 32 160 28.6 64 42.2 63.5 7 111.1 as per requirement 4 7/8 125
1 1/2 40 180 31.8 70 48.3 73 7 123.8 as per requirement 4 1 140
1/2 15 120 22.3 38 21.3 34.9 7 82.6 as per requirement 4 3/4 110
3/4 20 130 25.4 44 26.7 42.9 7 88.9 as per requirement 4 3/4 115
2 50 215 38.1 105 60.3 92.1 7 165.1 as per requirement 8 7/8 145
2 1/2 65 245 41.3 124 73 104.8 7 190.5 as per requirement 8 1 160
3 80 265 47.7 133 88.9 127 7 203.2 as per requirement 8 1 1/8 180
4 100 310 54 162 114.3 157.2 7 241.3 as per requirement 8 1 1/4 195
8 200 485 92.1 292 219.1 269.9 7 393.7 as per requirement 12 1 5/8 290
10 250 585 108 368 273 323.8 7 482.6 as per requirement 12 1 7/8 335
12 300 675 123.9 451 323.8 381 7 571.5 as per requirement 16 2 375
5 125 375 73.1 197 141.3 185.7 7 292.1 as per requirement 8 1 1/2 250
6 150 395 82.6 229 168.3 215.9 7 317.5 as per requirement 12 1 3/8 260
18 450 915 162 597 457 533.4 7 774.7 as per requirement 16 2 3/4 495
20 500 985 177.8 641 508 584.2 7 831.8 as per requirement 16 3 540
14 350 750 133.4 495 355.6 412.8 7 635 as per requirement 16 2 1/4 405
16 400 825 146.1 552 406.4 469.9 7 704.8 as per requirement 16 2 1/2 445
24 600 1170 203.2 762 610 692.2 7 990.6 as per requirement 16 3 1/2 615

Long Weld Neck Flange Class 2500 Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD Hub Length No of Bolts Bolt Size UNC RF Stud Length
A B C D E F G H
1 25 160 35 57 33.4 50.8 7 108 as per requirement 4 7/8 140
1 1/4 32 185 38.1 73 42.2 63.5 7 130.2 as per requirement 4 1 150
1 1/2 40 205 44.5 79 48.3 73 7 146 as per requirement 4 1 1/8 170
2 50 235 50.9 95 60.3 92.1 7 171.4 as per requirement 8 1 180
2 1/2 65 265 57.2 114 73 104.8 7 196.8 as per requirement 8 1 1/8 195
3 80 305 66.7 133 88.9 127 7 228.6 as per requirement 8 1 1/4 220
1/2 15 135 30.2 43 21.3 34.9 7 88.9 as per requirement 4 3/4 120
3/4 20 140 31.8 51 26.7 42.9 7 95.2 as per requirement 4 3/4 125
4 100 355 76.2 165 114.3 157.2 7 273 as per requirement 8 1 1/2 255
10 250 675 165.1 375 273 323.8 7 539.8 as per requirement 12 2 1/2 490
5 125 420 92.1 203 141.3 185.7 7 323.8 as per requirement 8 1 3/4 300
6 150 485 108 235 168.3 215.9 7 368.3 as per requirement 8 2 345
8 200 550 127 305 219.1 269.9 7 438.2 as per requirement 12 2 380
12 300 760 184.2 441 323.8 381 7 619.1 as per requirement 12 2 3/4 540