FLANGES

               

FLANGE DIMENSION TABLE
CLASS 150 - ANSI B16.5

 

          Length Through Hub Bore Threaded Flange Socket weld depth Corner Bore Radius (Lapped) Approx Weight kg
Nominal
Pipe Size,
NPS
Outside Diameter Min Thickness Dia of Hub Dia of Hub Chamfer WN  threaded/ slip-on/ socket weld Lapped Weld Neck Slip on / socket weld (min) Lapped (min) Weld Neck (min) Minimum
Thread
Length
Counter bore Weld Neck Blind Slip-On Lap Joint Threaded  & Socket weld
  0 t x a y b b b T q d r          
 1/2 90 11.2 30 21.3 14 16 46 22.2 22.9 15.8 16   - 10 3 0.5 0.4 0.4 0.4 0.4
 3/4 100 12.7 38 26.7 14 16 51 27.7 28.2 20.9 16   - 11 3 0.7 0.7 0.7 0.7 0.7
1 110 14.3 49 33.4 16 17 54 34.5 34.9 26.6 17   - 13 3 1.1 0.9 0.8 0.8 0.8
1 1/4 115 15.9 59 42.2 19 21 56 43.2 43.7 35.1 21   - 14 5 1.5 1.3 1.2 1.1 1.2
1 1/2 125 17.5 65 48.3 21 22 60 49.5 50 40.9 22   - 16 6 1.8 1.6 1.4 1.4 1.5
2 150 19.1 78 60.3 24 25 62 61.9 62.5 52.5 25   - 17 8 2.7 2.6 2.2 2.2 2.3
2 1/2 180 22.3 90 73 27 29 68 74.6 75.4 62.7 29   - 19 8 4.4 4.1 3.5 3.5 3.7
3 190 23.9 108 88.9 29 30 68 90.7 91.4 77.9 30   - 21 10 5.2 5.1 3.8 3.8 4.1
3 1/2 215 23.9 122 101.6 30 32 70 103.4 104.1 90.1 32   -   - 10 6.4 6.5 5 5 5.1
4 230 23.9 135 114.3 32 33 75 116.1 116.8 102.3 33   -   - 11 7.5 7.5 5.6 5.6 5.9
5 255 23.9 164 141.3 35 36 87 143.8 144.4 128.2 36   -   - 11 9.2 9.2 6.5 6.5 7
6 280 25.4 192 168.3 38 40 87 170.7 171.4 154.1 40   -   - 13 11 11.8 8.1 8.1 8.4
8 345 28.6 246 219.1 43 44 100 221.5 222.2 202.7 44   -   - 13 18.4 20.4 13 13 13
10 405 30.2 305 273 48 49 100 276.2 277.4 254.6 49   -   - 13 25.5 31 18.4 18.4 18
12 485 31.8 365 323.8 54 56 113 327 328.2 304.8 56   -   - 13 39 45 28.5 28 29.5
14 535 35 400 355.6 56 79 125 359.2 360.2 buyer spec 57   -   - 13 51 59 36 42 39
16 595 36.6 457 406.4 62 87 125 410.5 411.2 buyer spec 64   -   - 13 60 79 46 52 42
18 635 39.7 505 457 67 97 138 461.8 462.3 buyer spec 68   -   - 13 71 97 50 58 54
20 700 42.9 559 508 71 103 143 513.1 514.4 buyer spec 73   -   - 13 88 124 64 74 68
24 815 47.7 663 610 81 111 151 616 616 buyer spec 83   -   - 13 119 188 89 101 93

 

 

  Bolting Information RF Dimension RTJ Dimension
Nominal
Pipe Size,
NPS
 Diameter
 Bolt
 Circle
Dia' Bolt Hole (inch) No of Bolt holes Dia. of Bolts (inch) Length
Bolts  RF
Length
Bolts RTJ
Length
Machine Bolts 2mm RF
OD Height OD Raised Portion  Height Groove number Groove Pitch Groove Depth Groove Width
  W bh     L L L R   K E   P E F
 1/2 60.3 5⁄8 4 1⁄2 55   - 50 34.9 2   -   -   -   -   -   -
 3/4 69.9 5⁄8 4 1⁄2 65   - 50 42.9 2   -   -   -   -   -   -
1 79.4 5⁄8 4 1⁄2 65 75 55 50.8 2 63.5 6.35 R15 47.63 6.35 8.74
1 1/4 88.9 5⁄8 4 1⁄2 70 85 55 63.5 2 73 6.35 R17 57.15 6.35 8.74
1 1/2 98.4 5⁄8 4 1⁄2 70 85 65 73 2 82.5 6.35 R19 65.07 6.35 8.74
2 120.7 3⁄4 4 5⁄8 85 95 70 92.1 2 102 6.35 R22 82.55 6.35 8.74
2 1/2 139.7 3⁄4 4 5⁄8 90 100 75 104.8 2 121 6.35 R25 101.60 6.35 8.74
3 152.4 3⁄4 4 5⁄8 90 100 75 127 2 133 6.35 R29 114.30 6.35 8.74
3 1/2 177.8 3⁄4 8 5⁄8 90 100 75 139.7 2 154 6.35 R33 131.78 6.35 8.74
4 190.5 3⁄4 8 5⁄8 90 100 75 157.2 2 171 6.35 R36 149.23 6.35 8.74
5 215.9 7⁄8 8 3⁄4 95 110 85 185.7 2 194 6.35 R40 171.45 6.35 8.74
6 241.3 7⁄8 8 3⁄4 100 115 85 215.9 2 219 6.35 R43 193.68 6.35 8.74
8 298.5 7⁄8 8 3⁄4 110 120 90 269.9 2 273 6.35 R48 247.65 6.35 8.74
10 362 1    12 7⁄8 115 125 100 323.8 2 330 6.35 R52 304.80 6.35 8.74
12 431.8 1    12 7⁄8 120 135 100 381 2 406 6.35 R56 381.00 6.35 8.74
14 476.3 1 1⁄8 12 1 135 145 115 412.8 2 425 6.35 R59 396.88 6.35 8.74
16 539.8 1 1⁄8 16 1 135 145 115 469.9 2 483 6.35 R64 454.03 6.35 8.74
18 577.9 1 1⁄4 16 11⁄8 145 160 125 533.4 2 546 6.35 R68 517.53 6.35 8.74
20 635 1 1⁄4 20 11⁄8 160 170 140 584.2 2 597 6.35 R72 558.80 6.35 8.74
24 749.3 1 3⁄8 20 11⁄4 170 185 150 692.2 2 711 6.35 R76 673.10 6.35 8.74

 

FLANGE DIMENSION TABLE
CLASS 300  - ANSI B16.5
 

 

          Length Through Hub Bore Threaded Flange Socket weld depth Corner Bore Radius (Lapped) Approx Weight kg
Nominal
Pipe Size,
NPS
Outside Diameter Min Thickness Dia of Hub Dia of Hub Chamfer WN  threaded/ slip-on/ socket weld Lapped Weld Neck Slip on / socket weld (min) Lapped (min) Weld Neck (min) Minimum
Thread
Length
Counter bore Weld Neck Blind Slip-On Lap Joint Threaded  & Socket weld
  0 t x a y b b b T q d r          
 1/2 95 12.7 38 21.3 21 22 51 22.2 22.9 15.8 16 23.6 10 3 0.9 0.7 0.7 0.7 0.7
 3/4 115 14.3 48 26.7 24 25 56 27.7 28.2 20.9 16 29 11 3 1.5 1.2 1.1 1.1 1.2
1    125 15.9 54 33.4 25 27 60 34.5 34.9 26.6 18 35.8 13 3 1.9 1.5 1.4 1.4 1.4
1 1/4 135 17.5 64 42.2 25 27 64 43.2 43.7 35.1 21 44.4 14 5 2.6 2 1.8 1.8 1.9
1 1/2 155 19.1 70 48.3 29 30 67 49.5 50 40.9 23 50.3 16 6 3.3 2.9 2.7 2.7 2.8
2    165 20.7 84 60.3 32 33 68 61.9 62.5 52.5 29 63.5 17 8 3.6 3.5 3.2 3.2 3.3
2 1/2 190 23.9 100 73 37 38 75 74.6 75.4 62.7 32 76.2 19 8 5.4 5.3 4.5 4.5 4.6
3    210 27 117 88.9 41 43 78 90.7 91.4 77.9 32 92.2 21 10 7.3 7.2 6.1 6.1 6.3
3 1/2 230 28.6 133 101.6 43 44 79 103.4 104.1 90.1 37 104.9  - 10 8.9 9.2 7.5 7.5 7.8
4    255 30.2 146 114.3 46 48 84 116.1 116.8 102.3 37 117.6  - 11 11.8 12.2 10.1 10.1 10.2
5    280 33.4 178 141.3 49 51 97 143.8 144.4 128.2 43 144.4  - 11 16 16 12.5 12.5 12.9
6    320 35 206 168.3 51 52 97 170.7 171.4 154.1 47 171.4  - 13 20.2 22 14.1 14.1 18
8    380 39.7 260 219.1 60 62 110 221.5 222.2 202.7 51 222.2  - 13 31.2 36 24.8 24.8 26
10    445 46.1 321 273 65 95 116 276.2 277.4 254.6 56 276.2  - 13 44.3 55 37.1 42 37.5
12    520 49.3 375 323.8 71 102 129 327 328.2 304.8 61 328.6  - 13 63.5 82.5 50 64 52
14    585 52.4 425 355.6 75 111 141 359.2 360.2  - 64 360.4  - 13 86 108 73 86 73
16    650 55.6 483 406.4 81 121 144 410.5 411.2  - 69 411.2  - 13 113 140 88 113 88
18    710 58.8 533 457 87 130 157 461.8 462.3  - 70 462  - 13 134 178 115 134 115
20    775 62 587 508 94 140 160 513.1 514.4  - 74 512.8  - 13 171 223 139 167 139
24    915 68.3 702 610 105 152 167 616 616  - 83 614.4  - 13 238 345 212 240 212

 

 

 

  Bolting Information RF Dimension RTJ Dimension
Nominal
Pipe Size,
NPS
 Diameter
 Bolt
 Circle
Dia' Bolt Hole (inch) No of Bolt holes Dia. of Bolts (inch) Length
Bolts  RF
Length
Bolts RTJ
Length
Machine Bolts 2mm RF
OD Height OD Raised Portion  Height Groove number Groove Pitch Groove Depth Groove Width
  W bh     L L L R   K E   P E F
 1/2 66.7  5/8 4 1⁄2 65 75 55 34.9 2 51 5.54 R11 34.14 5.54 7.14
 3/4 82.6 3/4 4 5⁄8 75 90 65 42.9 2 63.5 6.35 R13 42.88 6.35 8.74
1    88.9 3/4 4 5⁄8 75 90 65 50.8 2 70 6.35 R16 50.80 6.35 8.74
1 1/4 98.4 3/4 4 5⁄8 85 95 70 63.5 2 79.5 6.35 R18 60.33 6.35 8.74
1 1/2 114.3 7/8 4 3⁄4 90 100 75 73 2 90.5 6.35 R20 68.27 6.35 8.74
2    127 3/4 8 5⁄8 90 100 75 92.1 2 108 7.92 R23 82.55 7.92 11.91
2 1/2 149.2 7/8 8 3⁄4 100 115 85 104.8 2 127 7.92 R26 101.60 7.92 11.91
3    168.3 7/8 8 3⁄4 110 120 90 127 2 146 7.92 R31 123.83 7.92 11.91
3 1/2 184.2 7/8 8 3⁄4 110 125 95 139.7 2 159 7.92 R34 131.78 7.92 11.91
4    200 7/8 8 3⁄4 115 125 95 157.2 2 175 7.92 R37 149.23 7.92 11.91
5    235 7/8 8 3⁄4 120 135 110 185.7 2 210 7.92 R41 180.98 7.92 11.91
6    269.9 7/8 12 3⁄4 120 140 110 215.9 2 241 7.92 R45 211.12 7.92 11.91
8    330.2 1    12 7⁄8 140 150 120 269.9 2 302 7.92 R49 269.88 7.92 11.91
10    387.4 1 1/8 16 1 160 170 140 323.8 2 356 7.92 R53 323.85 7.92 11.91
12    450.8 1 1/4 16 1 1⁄8 170 185 145 381 2 413 7.92 R57 381.00 7.92 11.91
14    514.4 1 1/4 20 1 1⁄8 180 190 160 412.8 2 457 7.92 R61 419.10 7.92 11.91
16    571.5 1 3/8 20 1 1⁄4 190 205 165 469.9 2 508 7.92 R65 469.90 7.92 11.91
18    628.6 1 3/8 24 1 1⁄4 195 210 170 533.4 2 575 7.92 R69 533.40 7.92 11.91
20    685.8 1 3/8 24 1 1⁄4 205 220 185 584.2 2 635 9.53 R73 584.20 9.53 13.49
24    812.8 1 5/8 24 1 1⁄2 230 255 205 692.2 2 749 11.13 R77 692.15 11.13 16.66

 

FLANGE DIMENSION TABLE
CLASS 600 ----- ANSI B16.5
 

 

          Length Through Hub Bore Threaded Flange Socket weld depth Corner Bore Radius (Lapped) Approx Weight kg
Nominal
Pipe Size,
NPS
Outside Diameter Min Thickness Dia of Hub Dia of Hub Chamfer WN  threaded/ slip-on/ socket weld Lapped Weld Neck Slip on / socket weld (min) Lapped (min) Weld Neck (min) Minimum
Thread
Length
Counter bore Weld Neck Blind Slip-On Lap Joint Threaded  & Socket weld
  0 t x a y b b b T q d r          
 1/2 95 14.3 38 21.3 22 22 52 22.2 22.9 Buyer Spec 16 23.6 10 3 0.9 0.7 0.8 0.8 1
 3/4 115 15.9 48 26.7 25 25 57 27.7 28.2 Buyer Spec 16 29 11 3 1.5 1.2 1.4 1.4 1.6
1    125 17.5 54 33.4 27 27 62 34.5 34.9 Buyer Spec 18 35.8 13 3 1.9 1.5 1.6 1.6 1.8
1 1/4 135 20.7 64 42.2 29 29 67 43.2 43.7 Buyer Spec 21 44.4 14 5 2.6 2.4 2.1 2.1 2.3
1 1/2 155 22.3 70 48.3 32 32 70 49.5 50 Buyer Spec 23 50.6 16 6 3.6 3.4 3.1 3.1 3.3
2    165 25.4 84 60.3 37 37 73 61.9 62.5 Buyer Spec 29 63.5 17 8 4.7 4.4 3.9 3.9 4
2 1/2 190 28.6 100 73 41 41 79 74.6 75.4 Buyer Spec 32 76.2 19 8 4.8 6.8 5.4 3.4 5.5
3    210 31.8 117 88.9 46 46 83 90.7 91.4 Buyer Spec 35 92.2 21 10 8.7 8.9 7.3 7.3 7.4
3 1/2 230 35 133 101.6 49 49 86 103.4 104.1 Buyer Spec 40 104.9 - 10 11.6 12.7 9 9 9.2
4    275 38.1 152 114.3 54 54 102 116.1 116.8 Buyer Spec 42 117.6 - 11 18.4 18.6 16.5 16.1 16.8
5    330 44.5 189 141.3 60 60 114 143.8 144.4 Buyer Spec 48 144.4 - 11 31 30.8 28.5 27.5 28.5
6    355 47.7 222 168.3 67 67 117 170.7 171.4 Buyer Spec 51 171.4 - 13 37 38 36.2 35.4 36.2
8    420 55.6 273 219.1 76 76 133 221.5 222.2 Buyer Spec 58 222.2 - 13 54.5 62.2 51.5 49.5 21.5
10    510 63.5 343 273 86 111 152 276.2 277.4 Buyer Spec 66 276.2 - 13 98.5 102 76.2 74 76.2
12    560 66.7 400 323.8 92 117 156 327 328.2 Buyer Spec 70 328.6 - 13 105 125 86 92 90
14    605 69.9 432 355.6 94 127 165 359.2 360.2 Buyer Spec 74 360.4 - 13 127 151 100 114 108
16    685 76.2 495 406.4 106 140 178 410.5 411.2 Buyer Spec 78 411.2 - 13 178 215 142 160 150
18    745 82.6 546 457 117 152 184 461.8 462.3 Buyer Spec 80 462 - 13 216 287 175 192 188
20    815 88.9 610 508 127 165 190 513.1 514.4 Buyer Spec 83 512.8 - 13 268 366 232 260 230
24    940 101.6 718 610 140 184 203 616 616 Buyer Spec 93 614.4 - 13 380 532 330 368 325

 

1

 

  Bolting Information RF Dimension RTJ Dimension
Nominal
Pipe Size,
NPS
 Diameter
 Bolt
 Circle
Dia' Bolt Hole (inch) No of Bolt holes Dia. of Bolts (inch) Length
Bolts  RF
Length
Bolts RTJ
Length
Machine Bolts 2mm RF
OD Height OD Raised Portion  Height Groove number Groove Pitch Groove Depth Groove Width
  W bh     L L L R   K E   P E F
 1/2 66.7 5⁄8 4 1⁄2 75 75 - 34.9 7 51 5.54 R11 34.14 5.54 7.14
 3/4 82.6 3⁄4 4 5⁄8 90 90 - 42.9 7 63.5 6.35 R13 42.88 6.35 8.74
1    88.9 3⁄4 4 5⁄8 90 90 - 50.8 7 70 6.35 R16 50.80 6.35 8.74
1 1/4 98.4 3⁄4 4 5⁄8 95 95 - 63.5 7 79.5 6.35 R18 60.33 6.35 8.74
1 1/2 114.3 7⁄8 4 3⁄4 110 110 - 73 7 90.5 6.35 R20 68.27 6.35 8.74
2    127 3⁄4 8 5⁄8 110 110 - 92.1 7 108 7.92 R23 82.55 7.92 11.91
2 1/2 149.2 7⁄8 8 3⁄4 120 120 - 104.8 7 127 7.92 R26 101.60 7.92 11.91
3    168.3 7⁄8 8 3⁄4 125 125 - 127 7 146 7.92 R31 123.83 7.92 11.91
3 1/2 184.2 1    8 7⁄8 140 140 - 139.7 7 169 7.92 R34 131.78 7.92 11.91
4    215.9 1    8 7⁄8 145 145 - 157.2 7 175 7.92 R37 149.23 7.92 11.91
5    266.7 1 1⁄8 8 1    165 165 - 185.7 7 210 7.92 R41 180.98 7.92 11.91
6    292.1 1 1⁄8 12 1    170 170 - 215.9 7 241 7.92 R45 211.12 7.92 11.91
8    349.2 1 1⁄4 12 1 1⁄8 195 195 - 269.9 7 302 7.92 R49 269.88 7.92 11.91
10    431.8 1 3⁄8 16 1 1⁄4 215 215 - 323.8 7 356 7.92 R53 323.85 7.92 11.91
12    489 1 3⁄8 20 1 1⁄4 220 220 - 381 7 413 7.92 R57 381.00 7.92 11.91
14    527 1 1⁄2 20 1 3⁄8 235 235 - 412.8 7 457 7.92 R61 419.10 7.92 11.91
16    603.2 1 5⁄8 20 1 1⁄2 255 255 - 469.9 7 508 7.92 R65 469.90 7.92 11.91
18    654 1 3⁄4 20 1 5⁄8 275 275 - 533.4 7 575 7.92 R69 533.40 7.92 11.91
20    723.9 1 3⁄4 20 1 5⁄8 285 290 - 584.2 7 635 9.53 R73 584.20 9.53 13.49
24    838.2 2    24 1 7⁄8 330 335 - 692.2 7 749 11.13 R77 692.15 11.13 16.66

 

FLANGE DIMENSION TABLE
CLASS 900 ----- ANSI B16.5
 

 

          Length Through Hub Bore Threaded Flange Socket weld depth Corner Bore Radius (Lapped) Approx Weight kg
Nominal
Pipe Size,
NPS
Outside Diameter Min Thickness Dia of Hub Dia of Hub Chamfer WN  threaded/ slip-on/ socket weld Lapped Weld Neck Slip on / socket weld (min) Lapped (min) Weld Neck (min) Minimum
Thread
Length
Counter bore Weld Neck Blind Slip-On Lap Joint Threaded  & Socket weld
  0 t x a y b b b T q d r          
 1/2 120 22.3 38 21.3 32 32 60 22.2 22.9 buyer spec 23 23.6 10 3 1.9 1.8 1.7 1.7 1.7
 3/4 130 25.4 44 26.7 35 35 70 27.7 28.2 buyer spec 26 29 11 3 2.6 2.4 2.3 2.3 2.4
1    150 28.6 52 33.4 41 41 73 34.5 34.9 buyer spec 29 35.8 13 3 3.8 3.6 3.4 3.4 3.5
1 1/4 160 28.6 64 42.2 41 41 73 43.2 43.7 buyer spec 31 44.4 14 5 4.4 4.1 3.9 3.9 4
1 1/2 180 31.8 70 48.3 44 44 83 49.5 50 buyer spec 32 50.6 16 6 6.1 5.8 5.4 5.4 5.5
2    215 38.1 105 60.3 57 57 102 61.9 62.5 buyer spec 39 63.5 17 8 11.1 10.1 9.8 9.8 10
2 1/2 245 41.3 124 73 64 64 105 74.6 75.4 buyer spec 48 76.2 19 8 15.5 14 13.7 13.7 13.9
3    240 38.1 127 88.9 54 54 102 90.7 91.4 buyer spec 42 92.2 - 10 15 13.1 11.6 11.6 11.9
4    290 44.5 159 114.3 70 70 114 116.1 116.8 buyer spec 48 117.6 - 11 24 24.5 23.2 22.6 23.2
5    350 50.8 190 141.3 79 79 127 143.8 144.4 buyer spec 54 144.4 - 11 38.5 39.5 37.5 36.5 37.5
6    380 55.6 235 168.3 86 86 140 170.7 171.4 buyer spec 58 171.4 - 13 50 51.5 48.3 47.5 48.3
8    470 63.5 298 219.1 102 114 162 221.5 222.2 buyer spec 64 222.2 - 13 85 89 75 86 75
10    545 69.9 368 273 108 127 184 276.2 277.4 buyer spec 72 276.2 - 13 123 131 110 124 110
12    610 79.4 419 323.8 117 143 200 327 328.2 buyer spec 77 328.6 - 13 168 187 146 167 146
14    640 85.8 451 355.6 130 156 213 359.2 360.2 buyer spec 83 360.4 - 13 198 224 172 180 172
16    705 88.9 508 406.4 133 165 216 410.5 411.2 buyer spec 86 411.2 - 13 225 259 192 210 192
18    785 101.6 565 457 152 190 229 461.8 462.3 buyer spec 89 462 - 13 318 383 272 294 272
20    855 108 622 508 159 210 248 513.1 514.4 buyer spec 93 512.8 - 13 376 482 330 365 330
24    1040 139.7 749 610 203 267 292 616 616 buyer spec 102 614.4 - 13 680 905 632 700 632

 

 

  Bolting Information RF Dimension RTJ Dimension
Nominal
Pipe Size,
NPS
 Diameter
 Bolt
 Circle
Dia' Bolt Hole (inch) No of Bolt holes Dia. of Bolts (inch) Length
Bolts  RF
Length
Bolts RTJ
Length
Machine Bolts 2mm RF
OD Height OD Raised Portion  Height Groove number Groove Pitch Groove Depth Groove Width
  W bh     L L L R   K E   P E F
 1/2 82.6 7⁄8 4 3⁄4 110 110 - 34.9 7 60.5 6.35 R12 39.67 6.35 8.74
 3/4 88.9 7⁄8 4 3⁄4 115 115 - 42.9 7 66.5 6.35 R14 44.45 6.35 8.74
1    101.6 1    4 7⁄8 125 125 - 50.8 7 71.5 6.35 R16 50.80 6.35 8.74
1 1/4 111.1 1    4 7⁄8 125 125 - 63.5 7 81 6.35 R18 60.33 6.35 8.74
1 1/2 123.8 1 1⁄8 4 1    140 140 - 73 7 92 6.35 R20 68.27 6.35 8.74
2    165.1 1    8 7⁄8 145 145 - 92.1 7 124 7.92 R24 95.25 7.92 11.91
2 1/2 190.5 1 1⁄8 8 1    160 160 - 104.8 7 137 7.92 R27 107.95 7.92 11.91
3    190.5 1    8 7⁄8 145 145 - 127 7 156 7.9 R31 123.83 7.92 11.91
4    235 1 1⁄4 8 1 1⁄8 170 170 - 157.2 7 181 7.9 R37 149.23 7.92 11.91
5    279.4 1 3⁄8 8 1 1⁄4 190 190 - 185.7 7 216 7.9 R41 180.98 7.92 11.91
6    317.5 1 1⁄4 12 1 1⁄8 190 195 - 215.9 7 241 7.9 R45 211.12 7.92 11.91
8    393.7 1 1⁄2 12 1 3⁄8 220 220 - 269.9 7 308 7.9 R49 269.88 7.92 11.91
10    469.9 1 1⁄2 16 1 3⁄8 235 235 - 323.8 7 362 7.9 R53 323.85 7.92 11.91
12    533.4 1 1⁄2 20 1 3⁄8 255 255 - 381 7 419 7.9 R57 381.00 7.92 11.91
14    558.8 1 5⁄8 20 1 1⁄2 275 280 - 412.8 7 467 11.13 R62 419.10 11.13 16.66
16    616 1 3⁄4 20 1 5⁄8 285 290 - 469.9 7 524 11.13 R66 469.90 11.13 16.66
18    685.8 2    20 1 7⁄8 325 335 - 533.4 7 594 12.7 R70 533.40 12.70 19.84
20    749.3 2 1⁄8 20 2    350 360 - 584.2 7 648 12.7 R74 584.20 12.70 19.84
24    901.7 2 5⁄8 20 2 1⁄2 440 455 - 692.2 7 772 15.88 R78 692.15 15.88 26.97

 

FLANGE DIMENSION TABLE
CLASS 1500 ----- ANSI B16.5