Flanges

Class 150 Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Flange Length RF Dia. RF Height PCD Socket Bore No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H
1/2 15 90 9.6 30 14 34.9 2 60.3 22.2 4 1/2 50 55 5/8 M14 0.8
3/4 20 100 11.2 38 14 42.9 2 69.9 27.7 4 1/2 50 65 5/8 M14 0.9
1 25 110 12.7 49 16 50.8 2 79.4 34.5 4 1/2 55 65 5/8 M14 0.9
1 1/4 32 115 14.3 59 19 63.5 2 88.9 43.2 4 1/2 55 70 5/8 M14 1.4
1 1/2 40 125 15.9 65 21 73 2 98.4 49.5 4 1/2 65 70 5/8 M14 1.4
2 50 150 17.5 78 24 92.1 2 120.7 61.9 4 5/8 70 85 3/4 M16 2.3
2 1/2 65 180 20.7 90 27 104.8 2 139.7 74.6 4 5/8 75 90 3/4 M16 3.2
3 80 190 22.3 108 29 127 2 152.4 90.7 4 5/8 75 90 3/4 M16 3.7
3 1/2 90 215 22.3 122 30 139.7 2 177.8 103.4 8 5/8 75 90 3/4 M16 5
4 100 230 22.3 135 32 157.2 2 190.5 116.1 8 5/8 75 90 3/4 M16 5.9
5 125 255 22.3 164 35 185.7 2 215.9 143.8 8 3/4 85 95 7/8 M20 6.8
6 150 280 23.9 192 38 215.9 2 241.3 170.7 8 3/4 85 100 7/8 M20 8.6
8 200 345 27 246 43 269.9 2 298.5 221.5 8 3/4 90 110 7/8 M20 13.7
10 250 405 28.6 305 48 323.8 2 362 276.2 12 7/8 100 115 1 M24 19.5
12 300 485 30.2 365 54 381 2 431.8 327 12 7/8 100 120 1 M24 29
14 350 535 33.4 400 56 412.8 2 476.3 359.2 12 1 115 135 1 1/8 M27 41
16 400 595 35 457 62 469.9 2 539.8 410.5 16 1 115 135 1 1/8 M27 54
18 450 635 38.1 505 67 533.4 2 577.9 461.8 16 1 1/8 125 145 1 1/4 M30 59
20 500 700 41.3 559 71 584.2 2 635 513.1 20 1 1/8 140 160 1 1/4 M30 75
24 600 815 46.1 663 81 692.2 2 749.3 616 20 1 1/4 150 170 1 3/8 M33 100

Class 300 Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Flange Length RF Dia. RF Height PCD Socket Bore No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H
1/2 15 95 12.7 38 21 34.9 2 66.7 22.2 4 1/2 55 65 5/8 M14 1.2
3/4 20 115 14.3 48 24 42.9 2 82.6 27.7 4 5/8 65 75 3/4 M16 1.4
1 25 125 15.9 54 25 50.8 2 88.9 34.5 4 5/8 65 75 3/4 M16 1.4
1 1/4 32 135 17.5 64 25 63.5 2 98.4 43.2 4 5/8 70 85 3/4 M16 1.8
1 1/2 40 155 19.1 70 29 73 2 114.3 49.5 4 3/4 75 90 7/8 M20 2.7
2 50 165 20.7 84 32 92.1 2 127 61.9 8 5/8 75 90 3/4 M16 3.2
2 1/2 65 190 23.9 100 37 104.8 2 149.2 74.6 8 3/4 85 100 7/8 M20 4.6
3 80 210 27 117 41 127 2 168.3 90.7 8 3/4 90 110 7/8 M20 5.9
3 1/2 90 230 28.6 133 43 139.7 2 184.2 103.4 8 3/4 95 110 7/8 M20 7.7
4 100 255 30.2 146 46 157.2 2 200 116.8 8 3/4 95 115 7/8 M20 10
5 125 280 33.4 178 49 185.7 2 235 144.4 8 3/4 110 120 7/8 M20 12.7
6 150 320 35 206 51 215.9 2 269.9 171.4 12 3/4 110 120 7/8 M20 17.7
8 200 380 39.7 260 60 269.9 2 330.2 222.2 12 7/8 120 140 1 M24 26
10 250 445 46.1 321 65 323.8 2 387.4 277.4 16 1 140 160 1 1/8 M27 36
12 300 520 49.3 375 71 381 2 450.8 328.2 16 1 1/8 145 170 1 1/4 M30 52
14 350 585 52.4 425 75 412.8 2 514.4 360.2 20 1 1/8 160 180 1 1/4 M30 75
16 400 650 55.6 483 81 469.9 2 571.5 411.2 20 1 1/4 165 190 1 3/8 M33 86
18 450 710 58.8 533 87 533.4 2 628.6 462.3 24 1 1/4 170 195 1 3/8 M33 113
20 500 775 62 587 94 584.2 2 685.8 514.4 24 1 1/4 185 205 1 3/8 M33 143
24 600 915 68.3 702 105 692.2 2 812.8 616 24 1 1/2 205 230 1 5/8 M39 216

Class Slip-on Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thickness Hub OD Flange Length RF Dia. RF Height PCD Socket Bore No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H
1/2 15 95 14.3 38 22 34.9 7 66.7 22.2 4 1/2 75 5/8 M14 1.3
3/4 20 115 15.9 48 25 42.9 7 82.6 27.7 4 5/8 90 3/4 M16 1.5
1 25 125 17.5 54 27 50.8 7 88.9 34.5 4 5/8 90 3/4 M16 1.8
1 1/4 32 135 20.7 64 29 63.5 7 98.4 43.2 4 5/8 95 3/4 M16 2.3
1 1/2 40 155 22.3 70 32 73 7 114.3 49.5 4 3/4 110 7/8 M20 3.2
2 50 165 25.4 84 37 92.1 7 127 61.9 8 5/8 110 3/4 M16 4.1
2 1/2 65 190 28.6 100 41 104.8 7 149.2 74.6 8 3/4 120 7/8 M20 5.9
3 80 210 31.8 117 46 127 7 168.3 90.7 8 3/4 125 7/8 M20 7.3
4 100 255 35 146 51 157.2 7 200 116.1 8 7/8 140 1 M24 11.8
5 125 280 38.1 178 54 185.7 7 235 143.8 8 7/8 145 1 M24 14.1
6 150 320 41.3 206 57 215.9 7 269.9 170.7 12 7/8 150 1 M24 20
8 200 380 47.7 260 68 269.9 7 330 221.5 12 1 170 1 1/8 M27 31
10 250 445 54 321 73 323.8 7 387.4 276.2 16 1 1/8 190 1 1/4 M30 42
12 300 520 57.2 375 79 381 7 450.8 327 16 1 1/4 205 1 3/8 M33 59
14 350 585 60.4 425 84 412.8 7 514.4 359.2 20 1 1/4 210 1 3/8 M33 82
16 400 650 63.5 483 94 469.9 7 571.5 410.5 20 1 3/8 220 1 1/2 M36 107
18 450 710 66.7 533 98 533.4 7 628.6 461.8 24 1 3/8 230 1 1/2 M36 130
20 500 775 69.9 587 102 584.2 7 685.8 513.1 24 1 1/2 240 1 3/4 M39 157
24 600 915 76.2 702 114 692.2 7 812.8 616 24 1 3/4 265 1 7/8 M45 232

Class 600 Flange Dimensions

Size in InchSize in mmOuter Dia.Flange ThicknessHub ODFlange LengthRF Dia.RF HeightPCDSocket BoreNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud SizeWeight in kg
ABCDEFGH
1/2159514.3382234.9766.722.241/2755/8M141.3
3/42011515.9482542.9782.627.745/8903/4M161.4
12512517.5542750.8788.934.545/8903/4M161.8
1 1/43213520.7642963.5798.443.245/8953/4M162.3
1 1/24015522.37032737114.349.543/41107/8M203.2
25016525.4843792.1712761.985/81103/4M164.1
2 1/26519028.610041104.87149.274.683/41207/8M205.9
38021031.8117461277168.390.783/41257/8M207.3
410027538.115254157.27215.9116.187/81451M2416.8
512533044.518960185.77266.7143.8811651 1/8M2729
615035547.722267215.97292.1170.71211701 1/8M2736
820042055.627376269.97349.2221.5121 1/81901 1/4M3052
1025051063.534386323.87431.8276.2161 1/42151 3/8M3377
1230056066.7400923817489327201 1/42201 3/8M3391
1435060569.943294412.87527359.2201 3/82351 1/2M36105
1640068576.2495106469.97603.2410.5201 1/22551 5/8M39150
1845074582.6546117533.47654461.8201 5/82751 3/4M42182
2050081588.9610127584.27723.9513.1241 5/82851 3/4M42232
24600940101.6718140692.27838.2616241 7/83302M48332

Flange Weights by Pressure Class and Size in mm kg

Pipe Size (inch)150 #300 #600 #900 #1500 #2500 #
WNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLD
1/2″211211222SEE 1500 # WEIGHTS544777
3/4″222333433SEE 1500 # WEIGHTS656888
1″322433444SEE 1500 # WEIGHTS988121111
1 1/2″433766878SEE 1500 # WEIGHTS131213252223
2″65597812910SEE 1500 # WEIGHTS252525423739
2 1/2″877121012181315SEE 1500 # WEIGHTS363635525556
3″1089151316231620312629484848948386
4″151317252227423741535354737373145125130
5″191520322835686368868387130130140245210225
6″241926423950818086110110115165165160380325345
8″393045675881120115140175170200275260300580485530
10″524370918112419017023026024529045543551010759301025
12″8064110140115185225200295325325415690580690152511001300
14″11090140180165250280230355400400520940NA975NANANA
16″140981802501902953903304954954256001250NA1300NANANA
18″1501302203202503954754006306806008501625NA1750NANANA
20″18016528540031550559051081083073010752050NA2225NANANA
22″2251853554653706407205901000NANANANANANANANANA
24″26022043058047579083073012501500140020253325NA3625NANANA
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