Blind Flange
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AWWA C207-07 Class F Blind Flanges
SPECIFICATIONS


▪ All dimensions are in inches
▪ Blind flanges shall be machined with center island to match
the mating flange
the mating flange
Nominal Pipe Size |
Working Pressure |
Outside Diameter |
Minimum Thickness |
Approximate Weight |
Number of Holes |
Diameter of Bolt Holes |
Diameter of Bolt Circle |
(A) | (T) | (lbs) | (C) | ||||
4 | 300 psi | 10.00 | 1.130 | 28 | 8 | 0.875 | 7.88 |
5 | 300 psi | 11.00 | 1.210 | 36 | 8 | 0.875 | 9.25 |
6 | 300 psi | 12.50 | 1.310 | 50 | 12 | 0.875 | 10.62 |
8 | 300 psi | 15.00 | 1.310 | 72 | 12 | 1.000 | 13.00 |
10 | 300 psi | 17.50 | 1.500 | 111 | 16 | 1.125 | 15.25 |
12 | 300 psi | 20.50 | 1.630 | 164 | 16 | 1.250 | 17.75 |
14 | 300 psi | 23.00 | 1.940 | 243 | 20 | 1.250 | 20.25 |
16 | 300 psi | 25.50 | 2.140 | 328 | 20 | 1.375 | 22.50 |
18 | 300 psi | 28.00 | 2.250 | 414 | 24 | 1.375 | 24.75 |
20 | 300 psi | 30.50 | 2.330 | 521 | 24 | 1.375 | 27.00 |
22 | 300 psi | 33.00 | 2.500 | 651 | 24 | 1.375 | 29.25 |
24 | 300 psi | 36.00 | 2.690 | 830 | 24 | 1.625 | 32.00 |
26 | 300 psi | 38.25 | 3.000 | 1038 | 28 | 1.875 | 34.50 |
28 | 300 psi | 40.75 | 3.130 | 1226 | 28 | 1.875 | 37.00 |
30 | 300 psi | 43.00 | 3.166 | 1380 | 28 | 1.875 | 39.25 |
32 | 300 psi | 45.25 | 3.332 | 1603 | 28 | 1.875 | 41.50 |
34 | 300 psi | 47.50 | 3.475 | 1839 | 28 | 1.875 | 43.50 |
36 | 300 psi | 50.00 | 3.671 | 2146 | 32 | 2.125 | 46.00 |
38 | 300 psi | 52.25 | 3.815 | 2431 | 32 | 2.125 | 48.00 |
40 | 300 psi | 54.25 | 3.982 | 2730 | 36 | 2.125 | 50.25 |
42 | 300 psi | 57.00 | 4.171 | 3151 | 36 | 2.125 | 52.75 |
44 | 300 psi | 59.25 | 4.338 | 3535 | 36 | 2.125 | 55.00 |
46 | 300 psi | 61.50 | 4.505 | 3949 | 40 | 2.125 | 57.25 |
48 | 300 psi | 65.00 | 4.781 | 4671 | 40 | 2.125 | 60.75 |