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ANSI / ASME CLASS 900 LONG WELD NECK FLANGE DIMENSIONS

Class 900 Long Weld Neck Flanges | #900 Sch 40 Long Weld Neck Flange | B16.5 #900 Long Weld Neck Flange | ANSI 900 Long Weld Neck Flange | ASME 900 Long Weld Neck Flange | #900 Long Weld Neck Dimensions | B16.5 Long Weld Neck Flange Thickness | 900 Long Weld Neck flange schedule chart | B16.5 Class 900 Long Weld Neck Flange

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long weld neck flange dimensions

Class 900 Long Weld Neck Flange Dimensions as per ASME B16.5

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 Hole Size ISO Stud Size
A B C D E F G H
1/2 15 120 22.3 38 21.3 34.9 7 82.6 As Required 4 3/4 110 7/8 M20
3/4 20 130 25.4 44 26.7 42.9 7 88.9 As Required 4 3/4 115 7/8 M20
1 25 150 28.6 52 33.4 50.8 7 101.6 As Required 4 7/8 125 1 M24
1 1/4 32 160 28.6 64 42.2 63.5 7 111.1 As Required 4 7/8 125 1 M24
1 1/2 40 180 31.8 70 48.3 73 7 123.8 As Required 4 1 140 1 1/8 M27
2 50 215 38.1 105 60.3 92.1 7 165.1 As Required 8 7/8 145 1 M24
2 1/2 65 245 41.3 124 73 104.8 7 190.5 As Required 8 1 160 1 1/8 M27
3 80 240 38.1 127 88.9 127 7 190.5 As Required 8 7/8 145 1 M24
4 100 290 44.5 159 114.3 157.2 7 235 As Required 8 1 1/8 170 1 1/4 M30
5 125 350 50.8 190 141.3 185.7 7 279.4 As Required 8 1 1/4 190 1 3/8 M33
6 150 380 55.6 235 168.3 215.9 7 317.5 As Required 12 1 1/8 190 1 1/4 M30
8 200 470 63.5 298 219.1 269.9 7 393.7 As Required 12 1 3/8 220 1 1/2 M36
10 250 545 69.9 368 273 323.8 7 469.9 As Required 16 1 3/8 235 1 1/2 M36
12 300 610 79.4 419 323.8 381 7 533.4 As Required 20 1 3/8 255 1 1/2 M36
14 350 640 85.8 451 355.6 412.8 7 558.8 As Required 20 1 1/2 275 1 5/8 M39
16 400 705 88.9 508 406.4 469.9 7 616 As Required 20 1 5/8 285 1 3/4 M42
18 450 785 101.6 565 457 533.4 7 685.8 As Required 20 1 7/8 325 2 M48
20 500 855 108 622 508 584.2 7 749.3 As Required 20 2 350 2 1/8 M52
24 600 1040 139.7 749 610 692.2 7 901.7 As Required 20 2 1/2 440 2 5/8 M64