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• Balamurugan Subramanian

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Table 2 AWWA C 207 Standard Steel-Ring Flanges Class B (86 psi) and Class D (175-150 psi) Nominal Pipe Size inch 4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144

OD of Flange (A) inch 9.00 10.00 11.00 13.50 16.00 19.00 21.00 23.50 25.00 27.50 29.50 32.00 34.25 36.50 38.75 41.75 43.75 48.00 48.75 50.75 53.00 55.25 57.25 59.50 61.75 64.00 66.25 73.00 80.00 86.50 93.00 99.75 106.50 113.25 120.00 126.75 133.50 140.25 147.00 153.75 160.50 167.25

ID of Number of Dia.of Bolt Dia of Flange (B) Bolts Circle (C) Bolts inch inch inch 4.57 5.66 6.72 8.72 10.88 12.88 14.19 16.19 18.19 20.19 22.19 24.19

8 8 8 8 12 12 12 16 16 20 20 20 24 28 28 28 32 32 32 36 36 40 40 44 44 44 44 52 52 60 64 64 68 68 72 72 76 76 80 80 84 84

7.50 8.50 9.50 11.75 14.25 17.00 18.75 21.25 22.75 25.00 27.25 29.50 31.75 34.00 36.00 38.50 40.50 42.75 45.25 47.25 49.50 51.75 53.75 56.00 58.25 60.50 62.75 69.25 76.00 82.50 89.00 95.50 102.00 108.50 114.50 120.75 126.75 132.75 139.25 145.75 152.00 158.25

0.63 0.75 0.75 0.75 0.88 0.88 1.00 1.13 1.13 1.13 1.25 1.25 1.25 1.25 1.25 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.75 1.75 1.75 1.75 1.75 1.75 2.00 2.00 2.25 2.25 2.50 2.50 2.75 2.75 3.00 3.00 3.25 3.25

Thickness of Flanges,in Class B Class D T T 0.625 0.625 0.688 0.688 0.688 0.688 0.688 0.688 0.688 0.688 0.750 0.750 0.812 0.875 0.875 0.938 0.938 1.000 1.000 1.000 1.125 1.125 1.125 1.250 1.250 1.250 1.375 1.500 1.625 1.750 2.000 2.000 2.250 2.250 2.500 2.500 2.750 2.750 3.000 3.000 3.250 3.250

0.625 0.625 0.688 0.688 0.688 0.812 0.938 1.000 1.062 1.125 1.188 1.250 1.312 1.312 1.375 1.500 1.500 1.625 1.625 1.625 1.750 1.750 1.750 1.875 2.000 2.000 2.125 2.250 2.500 2.625 2.750 2.875 3.000 3.250 3.250 3.375 3.500 3.500 3.750 3.875 4.000 4.125

T

B C A

Table 2 AWWA C 207 Standard Steel-Ring Flanges Class B (86 psi) and Class D (175-150 psi) Nominal Nominal Pipe OD of Flange (A) ID of Flange (B) Number of Dia.of Bolt Dia of Thickness of Flanges,mm Pipe Size mm mm mm Bolts Circle (C) Bolts Class B Class D Size inch mm mm T T 4 101.60 228.60 116.078 8 190.50 15.88 15.875 15.875 5 127.00 254.00 143.764 8 215.90 19.05 15.875 15.875 6 152.40 279.40 170.688 8 241.30 19.05 17.475 17.475 8 203.20 342.90 221.488 8 298.45 19.05 17.475 17.475 10 254.00 406.40 276.352 12 361.95 22.23 17.475 17.475 12 304.80 482.60 327.152 12 431.80 22.23 17.475 20.625 14 355.60 533.40 360.426 12 476.25 25.40 17.475 23.825 16 406.40 596.90 411.226 16 539.75 28.58 17.475 25.400 18 457.20 635.00 462.026 16 577.85 28.58 17.475 26.975 20 508.00 698.50 512.826 20 635.00 28.58 17.475 28.575 22 558.80 749.30 563.626 20 692.15 31.75 19.050 30.175 24 609.60 812.80 614.426 20 749.30 31.75 19.050 31.750 26 660.40 869.95 24 806.45 31.75 20.625 33.325 28 711.20 927.10 28 863.60 31.75 22.225 33.325 30 762.00 984.25 28 914.40 31.75 22.225 34.925 32 812.80 1060.45 28 977.90 38.10 23.825 38.100 34 863.60 1111.25 32 1028.70 38.10 23.825 38.100 36 914.40 1219.20 32 1085.85 38.10 25.400 41.275 38 965.20 1238.25 32 1149.35 38.10 25.400 41.275 40 1016.00 1289.05 36 1200.15 38.10 25.400 41.275 42 1066.80 1346.20 36 1257.30 38.10 28.575 44.450 44 1117.60 1403.35 40 1314.45 38.10 28.575 44.450 46 1168.40 1454.15 40 1365.25 38.10 28.575 44.450 48 1219.20 1511.30 44 1422.40 38.10 31.750 47.625 50 1270.00 1568.45 44 1479.55 44.45 31.750 50.800 52 1320.80 1625.60 44 1536.70 44.45 31.750 50.800 54 1371.60 1682.75 44 1593.85 44.45 34.925 53.975 60 1524.00 1854.20 52 1758.95 44.45 38.100 57.150 66 1676.40 2032.00 52 1930.40 44.45 41.275 63.500 72 1828.80 2197.10 60 2095.50 44.45 44.450 66.675 78 1981.20 2362.20 64 2260.60 50.80 50.800 69.850 84 2133.60 2533.65 64 2425.70 50.80 50.800 73.025 90 2286.00 2705.10 68 2590.80 57.15 57.150 76.200 96 2438.40 2876.55 68 2755.90 57.15 57.150 82.550 102 2590.80 3048.00 72 2908.30 63.50 63.500 82.550 108 2743.20 3219.45 72 3067.05 63.50 63.500 85.725 114 2895.60 3390.90 76 3219.45 69.85 69.850 88.900 120 3048.00 3562.35 76 3371.85 69.85 69.850 88.900 126 3200.40 3733.80 80 3536.95 76.20 76.200 95.250 132 3352.80 3905.25 80 3702.05 76.20 76.200 98.425 138 3505.20 4076.70 84 3860.80 82.55 82.550 101.600 144 3657.60 4248.15 84 4019.55 82.55 82.550 104.775