AWWA C207-07 Class B Blind Flanges

ProductsNominal Pipe SizeWorking PressureOutside Diameter (A)Minimum Thickness (T)Approximate Weight (lbs)Number of Bolt HolesDiameter of Bolt HolesDiameter of Bolt Circle (C)
04BLIBAWW4 86 psi9.00 0.625 14 8 0.7507.50
05BLIBAWW5 86 psi10.00 0.625 17 8 0.875 8.50
06BLIBAWW6 86 psi11.00 0.688 22 8 0.875 9.50
08BLIBAWW8 86 psi13.50 0.688 33 8 0.875 11.75
10BLIBAWW10 86 psi16.00 0.688 46 12 1.000 14.25
12BLIBAWW1286 psi19.00 0.719 68 12 1.000 17.00
14BLIBAWW 1486 psi21.00 0.791 90 12 1.125 18.75
16BLIBAWW1686 psi23.50 0.892 125 16 1.125 21.25
18BLIBAWW1886 psi25.00 0.950 149 16 1.250 22.75
20BLIBAWW2086 psi27.50 1.040 207 20 1.250 25.00
22BLIBAWW2286 psi29.50 1.132 255 20 1.375 27.25
24BLIBAWW2486 psi32.00 1.216 320 20 1.375 29.50
26BLIBAWW2686 psi34.25 1.307 390 24 1.375 31.75
28BLIBAWW2886 psi36.50 1.398 470 28 1.375 34.00
30BLIBAWW3086 psi38.75 1.477 546 28 1.375 36.00
32BLIBAWW3286 psi41.75 1.581 686 28 1.625 38.50
34BLIBAWW3486 psi43.75 1.661 787 32 1.625 40.50
36BLIBAWW3686 psi46.00 1.751 913 32 1.625 42.75
38BLIBAWW3886 psi48.75 1.853 1079 32 1.625 45.25
40BLIBAWW4086 psi50.75 1.933 1215 36 1.625 47.25
42BLIBAWW4286 psi53.00 2.023 1382 36 1.625 49.50
44BLIBAWW4486 psi55.25 2.114 1563 40 1.625 51.75
46BLIBAWW4686 psi57.25 2.194 1737 40 1.625 53.75
48BLIBAWW 4886 psi59.50 2.285 1948 44 1.625 56.00
50BLIBAWW5086 psi61.75 2.377 217644 1.875 58.25
52BLIBAWW5286 psi64.00 2.468 2420 44 1.875 60.50
54BLIBAWW5486 psi66.25 2.5592682 44 1.875 62.75
60BLIBAWW6086 psi73.00 2.820 3566 52 1.875 69.25
66BLIBAWW66 86 psi80.00 3.092 4670 52 1.875 76.00
72BLIBAWW72 86 psi86.50 3.353 5894 60 1.875 82.50