Class 300 Long Weld Neck Flange Dimensions


Class 300 Long Weld Neck Flange Dimensions

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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 95 12.7 38 21.3 34.9 2 66.7 as per requirement 4 1/2 55 65 5/8 M14
3/4 20 115 14.3 48 26.7 42.9 2 82.6 as per requirement 4 5/8 65 75 3/4 M16
1 25 125 15.9 54 33.4 50.8 2 88.9 as per requirement 4 5/8 65 75 3/4 M16
1 1/4 32 135 17.5 64 42.2 63.5 2 98.4 as per requirement 4 5/8 70 85 3/4 M16
1 1/2 40 155 19.1 70 48.3 73 2 114.3 as per requirement 4 3/4 75 90 7/8 M20
2 50 165 20.7 84 60.3 92.1 2 127 as per requirement 8 5/8 75 90 3/4 M16
2 1/2 65 190 23.9 100 73 104.8 2 149.2 as per requirement 8 3/4 85 100 7/8 M20
3 80 210 27 117 88.9 127 2 168.3 as per requirement 8 3/4 90 110 7/8 M20
3 1/2 90 230 28.6 133 101.6 139.7 2 184.2 as per requirement 8 3/4 95 110 7/8 M20
4 100 255 30.2 146 114.3 157.2 2 200 as per requirement 8 3/4 95 115 7/8 M20
5 125 280 33.4 178 141.3 185.7 2 235 as per requirement 8 3/4 110 120 7/8 M20
6 150 320 35 206 168.3 215.9 2 269.9 as per requirement 12 3/4 110 120 7/8 M20
8 200 380 39.7 260 219.1 269.9 2 330.2 as per requirement 12 7/8 120 140 1 M24
10 250 445 46.1 321 273 323.8 2 387.4 as per requirement 16 1 140 160 1 1/8 M27
12 300 520 49.3 375 323.8 381 2 450.8 as per requirement 16 1 1/8 145 170 1 1/4 M30
14 350 585 52.4 425 355.6 412.8 2 514.4 as per requirement 20 1 1/8 160 180 1 1/4 M30
16 400 650 55.6 483 406.4 469.9 2 571.5 as per requirement 20 1 1/4 165 190 1 3/8 M33
18 450 710 58.8 533 457 533.4 2 628.6 as per requirement 24 1 1/4 170 195 1 3/8 M33
20 500 775 62 587 508 584.2 2 685.8 as per requirement 24 1 1/4 185 205 1 3/8 M33
24 600 915 68.3 702 610 692.2 2 812.8 as per requirement 24 1 1/2 205 230 1 5/8 M39

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