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AWWA Flange Dimensions

AWWA C207 FLANGE CLASS 125LW CLASS B, D Dimensions & Masses

AWWA C207 CLASS 125 LW CLASS E FLANGE Dimensions & Masses

C207 CLASS B RING FLANGE (86 PSI*) Dimensions & Masses

Nom Size   Drilling Thickness   Weight
OD Bolt Circle Hole Dia No. Holes Slip-On Blind Bore Slip-on Blind
A C     T  T B    
4 9.00 7.50 0.750 8 0.625 0.625 4.57 8 11
5 10.00 8.50 0.875 8 0.625 0.625 5.66 9 14
6 11.00 9.50 0.875 8 0.688 0.688 6.72 11 19
8 13.50 11.75 0.875 8 0.688 0.688 8.72 15 28
10 16.00 14.25 1.000 12 0.688 0.688 10.88 19 39
12 19.00 17.00 1.000 12 0.688 0.719 12.88 28 58
14 21.00 18.75 1.125 12 0.688 0.791 14.19 34 78
16 23.50 21.25 1.125 16 0.688 0.892 16.19 41 110
18 25.00 22.75 1.250 16 0.688 0.950 18.19 41 132
20 27.50 25.00 1.250 20 0.688 1.040 20.19 49 175
22 29.50 27.25 1.375 20 0.750 1.132 22.19 57 219
24 32.00 29.50 1.375 20 0.750 1.216 24.19 67 277
26 34.25 31.75 1.375 24 0.812 1.307 26.19 80 341
28 36.50 34.00 1.375 28 0.875 1.398 28.19 94 414
30 38.75 36.00 1.375 28 0.875 1.477 30.19 105 493
32 41.75 38.50 1.625 28 0.936 1.581 32.19 132 613
34 43.75 40.50 1.625 32 0.938 1.661 34.19 137 707
36 46.00 42.75 1.625 32 1.000 1.751 36.19 161 824
38 48.75 45.25 1.625 32 1.000 1.853 38.19 185 980
40 50.75 47.25 1.625 36 1.000 1.933 40.19 193 1108
42 53.00 49.50 1.625 36 1.125 2.023 42.19 234 1264
44 55.25 51.75 1.625 40 1.125 2.114 44.19 249 1436
46 57.25 53.75 1.625 40 1.125 2.194 46.19 260 1600
48 59.50 56.00 1.625 44 1.250 2.285 48.19 306 1800
50 61.75 58.25 1.875 44 1.250 2.377 50.19 317 2017
52 64.00 60.50 1.875 44 1.250 2.468 52.19 339 2249
54 66.25 62.75 1.875 44 1.375 2.559 54.19 397 2499
60 73.00 69.25 1.875 52 1.500 2.820 60.19 508 3344
66 80.00 76.00 1.875 52 1.625 3.092 66.19 664 4403
72 86.50 82.50 1.875 60 1.750 3.353 72.19 802 5582
78 93.00 89.00 2.125 64 2.000 …….. 78.19 1000 ……..
84 99.75 95.50 2.125 64 2.000 …….. 84.19 1145 ……..
90 106.50 102.00 2.438 68 2.250 …….. 90.19 1404 ……..
96 113.25 108.50 2.438 68 2.250 …….. 96.19 1586 ……..
102 120.00 114.50 2.688 72 2.500 …….. 102.19 1912 ……..
108 126.75 120.75 2.688 72 2.500 …….. 108.19 2136 ……..
114 133.50 126.75 2.938 76 2.750 …….. 114.19 2525 ……..
120 140.25 132.75 2.938 76 2.750 …….. 120.19 2795 ……..
126 147.00 139.25 3.188 80 3.000 …….. 126.19 3252 ……..
132 153.75 145.75 3.188 80 3.000 …….. 132.19 3572 ……..
138 160.50 152.00 3.438 84 3.250 …….. 138.19 4101 ……..
144 167.25 158.25 3.438 84 3.250 …….. 144.19 4475 ……..

C207 CLASS D RING FLANGE (175-150 PSI) Dimensions & Masses

Nom Size   Drilling Thickness   Weight
OD Bolt Circle Hole Dia No Holes Slip-On Blind Bore Slip-on Blind
A C     T  T B    
4 9.00 7.50 0.750 8 0.625 0.625 4.57 8 11
5 10.00 8.50 0.875 8 0.625 0.650 5.66 9 14
6 11.00 9.50 0.875 8 0.688 0.693 6.72 11 19
8 13.50 11.75 0.875 8 0.688 0.812 8.72 15 33
10 16.00 14.25 1.000 12 0.688 0.953 10.88 19 54
12 19.00 17.00 1.000 12 0.812 1.117 12.88 33 90
14 21.00 18.75 1.125 12 0.938 1.133 14.19 47 111
16 23.50 21.25 1.125 16 1.000 1.265 16.19 60 155
18 25.00 22.75 1.250 16 1.062 1.331 18.19 64 185
20 27.50 25.00 1.250 20 1.125 1.448 20.19 79 244
22 29.50 27.25 1.375 20 1.188 1.568 22.19 90 304
24 32.00 29.50 1.375 20 1.250 1.661 24.19 112 378
26 34.25 31.75 1.375 24 1.312 1.786 26.19 129 466
28 36.50 34.00 1.375 28 1.312 1.906 28.19 141 565
30 38.75 36.00 1.375 28 1.375 2.008 30.19 164 671
32 41.75 38.50 1.625 28 1.500 2.150 32.19 211 834
34 43.75 40.50 1.625 32 1.500 2.252 34.19 220 959
36 46.00 42.75 1.625 32 1.625 2.370 36.19 261 1116
38 48.75 45.25 1.625 32 1.625 2.506 38.19 301 1325
40 50.75 47.25 1.625 36 1.625 2.609 40.19 313 1438
42 53.00 49.50 1.625 36 1.750 2.729 42.19 364 1706
44 55.25 51.75 1.625 40 1.750 2.849 44.19 387 1935
46 57.25 53.75 1.625 40 1.750 2.952 46.19 404 2153
48 59.50 56.00 1.625 44 1.875 3.072 48.19 460 2420
50 61.75 58.25 1.875 44 2.000 3.196 50.19 507 2712
52 64.00 60.50 1.875 44 2.000 3.315 52.19 542 3021
54 66.25 62.75 1.875 44 2.125 3.435 54.19 614 3355
60 73.00 69.25 1.875 52 2.250 3.779 60.19 763 4481
66 80.00 76.00 1.875 52 2.500 4.136 66.19 1021 5890
72 86.50 82.50 1.875 60 2.625 4.480 72.19 1203 7458
78 93.00 89.00 2.125 64 2.750 …….. 78.19 1374 ……..
84 99.75 95.50 2.125 64 2.875 …….. 84.19 1646 ……..
90 106.50 102.00 2.438 68 3.000 …….. 90.19 1872 ……..
96 113.25 108.50 2.438 68 3.250 …….. 96.19 2291 ……..
102 120.00 114.50 2.688 72 3.250 …….. 102.19 2485 …….
108 126.75 120.75 2.688 72 3.375 …….. 108.19 2884 ……..
114 133.50 126.75 2.938 76 3.500 …….. 114.19 3214 ……..
120 140.25 132.75 2.938 76 3.500 …….. 120.19 3558 ……..
126 147.00 139.25 3.188 80 3.750 …….. 126.19 4065 ……..
132 153.75 145.75 3.188 80 3.875 …….. 132.19 4614 …….
138 160.50 152.00 3.438 84 4.000 …….. 138.19 5047 ……..
144 167.25 158.25 3.438 84 4.125 …….. 144.19 5680 ……..

C207 CLASS D HUB FLANGE (175-150 PSI*) Dimensions & Masses

Nom Size           Drilling
OD Weight Thickness Overall Thickness Bore Dia at Base Bolt  Circle Hole Dia No. Holes
A   T   
L		 B E C    
4 9.00 7 0.500 0.875 4.57 5.312 7.50 0.750 8
5 10.00 9 0.562 1.250 5.66 6.312 8.50 0.875 8
6 11.00 11 0.562 1.250 6.72 7.562 9.50 0.875 8
8 13.50 15 0.562 1.250 8.72 9.688 11.75 0.875 8
10 16.00 22 0.688 1.250 10.88 12.000 14.25 1.000 12
12 19.00 33 0.688 1.250 12.88 14.375 17.00 1.000 12
14 21.00 43 0.750 1.250 14.19 15.750 18.75 1.125 12
16 23.50 52 0.750 1.250 16.19 18.000 21.25 1.125 16
18 25.00 52 0.750 1.250 18.19 19.875 22.75 1.250 16
20 27.50 61 0.750 1.250 20.19 22.000 25.00 1.250 20
22 29.50 92 1.000 1.750 22.19 24.250 27.25 1.375 20
24 32.00 105 1.000 1.750 24.19 26.125 29.50 1.375 20
26 34.25 119 1.000 1.750 26.19 28.500 31.75 1.375 24
28 36.50 130 1.000 1.750 28.19 30.500 34.00 1.375 28
30 38.75 144 1.000 1.750 30.19 32.500 36.00 1.375 28
32 41.75 182 1.125 1.750 32.19 34.750 38.50 1.625 28
34 43.75 191 1.125 1.750 34.19 36.750 40.50 1.625 32
36 46.00 207 1.125 1.750 36.19 38.750 42.75 1.625 32
38 48.75 237 1.125 1.750 38.19 40.750 45.25 1.625 32
40 50.75 249 1.125 1.750 40.19 43.000 47.25 1.625 36
42 53.00 287 1.250 1.750 42.19 45.000 49.50 1.625 36
44 55.25 334 1.250 2.250 44.19 47.000 51.75 1.625 40
46 57.25 348 1.250 2.250 46.19 49.000 53.75 1.625 40
48 59.50 407 1.375 2.500 48.19 51.000 56.00 1.625 44
50 61.75 421 1.375 2.500 50.19 53.000 58.25 1.875 44
52 64.00 448 1.375 2.500 52.19 55.000 60.50 1.875 44
54 66.25 475 1.375 2.500 54.19 57.000 62.75 1.875 44
60 73.00 605 1.500 2.750 60.19 63.000 69.25 1.875 52
66 80.00 718 1.500 2.750 66.19 69.000 76.00 1.875 52
72 86.50 803 1.500 2.750 72.19 75.000 82.50 1.875 60
78 93.00 1010 1.750 3.000 78.19 81.250 89.00 2.125 64
84 99.75 1160 1.750 3.000 84.19 87.500 95.50 2.125 64
90 106.50 1430 2.000 3.250 90.19 93.750 102.00 2.438 68
96 113.25 1618 2.000 3.250 96.19 100.000 108.50 2.438 68

CLASS E STEEL RING FLANGE (275 PSI*) Dimensions & Masses

Nom Size   Drilling Thickness   Weight
OD Bolt  Circle Hole  Dia No. Holes Slip-On Blind Bore Slip-on Blind
A C     T  T B    
4 9.00 7.50 0.750 8 1.125 1.125 4.57 14 20
5 10.00 8.50 0.875 8 1.188 1.188 5.66 16 26
6 11.00 9.50 0.875 8 1.313 1.313 6.72 20 35
8 13.50 11.75 0.875 8 1.500 1.500 8.72 33 61
10 16.00 14.25 1.000 12 1.563 1.563 10.88 44 89
12 19.00 17.00 1.000 12 1.750 1.750 12.88 71 141
14 21.00 18.75 1.125 12 1.875 1.875 14.19 94 184
16 23.50 21.25 1.125 16 2.000 2.000 16.19 120 246
18 25.00 22.75 1.250 16 2.125 2.125 18.19 127 296
20 27.50 25.00 1.250 20 2.375 2.375 20.19 168 400
22 29.50 27.25 1.375 20 2.500 2.500 22.19 189 484
24 32.00 29.50 1.375 20 2.625 2.625 24.19 234 598
26 34.25 31.75 1.375 24 2.750 2.750 26.19 270 718
28 36.50 34.00 1.375 28 2.750 2.750 28.19 297 815
30 38.75 36.00 1.375 28 2.875 2.875 30.19 344 961
32 41.75 38.50 1.625 28 3.000 3.000 32.19 422 1163
34 43.75 40.50 1.625 32 3.000 3.050 34.19 441 1299
36 46.00 42.75 1.625 32 3.125 3.209 36.19 502 1511
38 48.75 45.25 1.625 32 3.125 3.394 38.19 580 1795
40 50.75 47.25 1.625 36 3.250 3.533 40.19 626 2025
42 53.00 49.50 1.625 36 3.375 3.695 42.19 701 2309
44 55.25 51.75 1.625 40 3.375 3.857 44.19 747 2715
46 57.25 53.75 1.625 40 3.438 3.997 46.19 794 2813
48 59.50 56.00 1.625 44 3.500 4.159 48.19 858 3276
50 61.75 58.25 1.875 44 3.500 4.327 50.19 887 3671
52 64.00 60.50 1.875 44 3.625 4.489 52.19 982 4091
54 66.25 62.75 1.875 44 3.750 4.651 54.19 1083 4542
60 73.00 69.25 1.875 52 3.875 5.116 60.19 1313 6066
66 80.00 76.00 1.875 52 4.250 5.601 66.19 1736 7976
72 86.50 82.50 1.875 60 4.375 6.066 72.19 2005 10099
78 93.00 89.00 2.125 64 4.750 …….. 78.19 2374 ……..
84 99.75 95.50 2.125 64 4.750 …….. 84.19 2719 ……..
90 106.50 102.00 2.438 68 5.125 …….. 90.19 3197 ……..
96 113.25 108.50 2.438 68 5.125 …….. 96.19 3613 ……..
102 120.00 114.50 2.688 72 5.500 …….. 102.19 4206 ……..
108 126.75 120.75 2.688 72 5.500 …….. 108.19 4700 ……..
114 133.50 126.75 2.938 76 5.875 …….. 114.19 5395 ……..
120 140.25 132.75 2.938 76 5.875 …….. 120.19 5972 ……..
126 147.00 139.25 3.188 80 6.250 …….. 126.19 6775 ……..
132 153.75 145.75 3.188 80 6.250 …….. 132.19 7442 ……..
138 160.50 152.00 3.438 84 6.750 …….. 138.19 8517 ……..
144 167.25 158.25 3.438 84 6.750 …….. 144.19 9295 ……..

C207 CLASS E HUB FLANGE (275 PSI*) Dimensions & Masses

Nom Size   Drilling        
OD Bolt Circle Hole Dia No. Holes Thickness Overall Thickness Dia at Base Bore Weight
A C     T  L E B  
4 9.00 7.50 0.750 8 0.938 1.312 5.312 4.57 13
5 10.00 8.50 0.875 8 0.938 1.438 6.438 5.66 14
6 11.00 9.50 0.875 8 1.000 1.562 7.562 6.72 17
8 13.50 11.75 0.875 8 1.125 1.750 9.688 8.72 28
10 16.00 14.25 1.000 12 1.188 1.938 12.000 10.88 37
12 19.00 17.00 1.000 12 1.250 2.188 14.375 12.88 59
14 21.00 18.75 1.125 12 1.375 2.250 15.750 14.19 78
16 23.50 21.25 1.125 16 1.438 2.500 18.000 16.19 101
18 25.00 22.75 1.250 16 1.562 2.688 19.875 18.19 110
20 27.50 25.00 1.250 20 1.688 2.875 22.000 20.19 139
22 29.50 27.25 1.375 20 1.812 3.125 24.000 22.19 162
24 32.00 29.50 1.375 20 1.875 3.250 26.125 24.19 197
26 34.25 31.75 1.375 24 2.000 3.375 28.500 26.19 235
28 36.50 34.00 1.375 28 2.062 3.438 30.750 28.19 269
30 38.75 36.00 1.375 28 2.125 3.500 32.750 30.19 303
32 41.75 38.50 1.625 28 2.250 3.625 35.000 32.19 375
34 43.75 40.50 1.625 32 2.312 3.688 37.000 34.19 401
36 46.00 42.75 1.625 32 2.375 3.750 39.250 36.19 452
38 48.75 45.25 1.625 32 2.375 3.750 41.750 38.19 528
40 50.75 47.25 1.625 36 2.500 3.875 43.750 40.19 573
42 53.00 49.50 1.625 36 2.625 4.000 46.000 42.19 648
44 55.25 51.75 1.625 40 2.625 4.000 48.000 44.19 688
46 57.25 53.75 1.625 40 2.688 4.062 50.000 46.19 733
48 59.50 56.00 1.625 44 2.750 4.125 52.250 48.19 799
50 61.75 58.25 1.875 44 2.750 4.125 54.250 50.19 827
52 64.00 60.50 1.875 44 2.875 4.250 56.500 52.19 922
54 66.25 62.75 1.875 44 3.000 4.375 58.750 54.19 1024
60 73.00 69.25 1.875 52 3.125 4.500 65.250 60.19 1253
66 80.00 76.00 1.875 52 3.375 4.875 71.500 66.19 1623
72 86.50 82.50 1.875 60 3.500 5.000 78.500 72.19 1922
78 93.00 89.00 2.125 64 3.875 5.375 84.500 78.19 2279
84 99.75 95.50 2.125 64 3.875 5.375 90.500 84.19 2586
90 106.50 102.00 2.438 68 4.250 5.750 96.750 90.19 3061
96 113.25 108.50 2.438 68 4.250 5.750 102.750 96.19 3432

C207 CLASS F RING FLANGE (300 PSI*) Dimensions & Masses

Nom Size   Drilling Thickness   Weight
OD Bolt Circle Hole Dia No. Holes Slip-On Blind Bore Slip-on Blind
A C     T  T B    
4 10.00 7.88 0.875 8 1.130 1.130 4.57 18 25
5 11.00 9.25 0.875 8 1.210 1.210 5.66 22 33
6 12.50 10.62 0.875 12 1.310 1.310 6.73 30 46
8 15.00 13.00 1.000 12 1.310 1.310 8.73 40 66
10 17.50 15.25 1.125 16 1.500 1.500 10.88 56 102
12 20.50 17.75 1.250 16 1.630 1.630 12.88 83 152
14 23.00 20.25 1.250 20 1.940 1.940 14.19 128 228
16 25.50 22.50 1.375 20 2.140 2.140 16.19 167 310
18 28.00 24.75 1.375 24 2.250 2.250 18.19 204 392
20 30.50 27.00 1.375 24 2.330 2.330 20.19 247 482
22 33.00 29.25 1.375 24 2.500 2.500 22.19 307 606
24 36.00 32.00 1.625 24 2.690 2.690 24.19 388 776
26 38.25 34.50 1.875 28 3.000 3.000 26.19 451 977
28 40.75 37.00 1.875 28 3.130 3.130 28.19 532 1156
30 43.00 39.25 1.875 28 3.150 3.166 30.19 586 1303
32 45.25 41.50 1.875 28 3.250 3.332 32.19 657 1518
34 47.50 43.50 1.875 28 3.380 3.475 34.19 741 1745
36 50.00 46.00 2.125 32 3.460 3.671 36.19 802 2042
38 52.25 48.00 2.125 32 3.500 3.815 38.19 874 2317
40 54.25 50.25 2.125 36 3.630 3.982 40.19 937 2608
42 57.00 52.75 2.125 36 3.810 4.171 42.19 1103 3015
44 59.25 55.00 2.125 36 4.000 4.338 44.19 1237 3388
46 61.50 57.25 2.125 40 4.130 4.505 46.19 1344 3791
48 65.00 60.75 2.125 40 4.500 4.781 48.19 1718 4494
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