• AWWA E Ring C207-01 Steel Ring Flange
  • All dimensions are in inches.
  • Pressure rating at atmospheric temperature is 175 psi for sizes 12” and under and 150 psi for sizes 14” and up.
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Item #

Nominal Pipe Size

Outside Diameter (A)

Thickness (T)

Inside Diameter (B)

Approximate Weight (lbs)

Number of Bolt Holes

Diameter of Bolt Holes

Diameter of Bolt Circle (C)

04DRINAWW N/A 4 N/A 9.00 N/A 0.625 N/A 4.57 N/A 8 N/A 8 N/A 0.750 N/A 7.50
05DRINAWW N/A 5 N/A 10.00 N/A 0.625 N/A 5.66 N/A 9 N/A 8 N/A 0.875 N/A 8.50
06DRINAWW N/A 6 N/A 11.00 N/A 0.688 N/A 6.72 N/A 11 N/A 8 N/A 0.875 N/A 9.50
08DRINAWW N/A 8 N/A 13.50 N/A 0.688 N/A 8.72 N/A 15 N/A 8 N/A 0.875 N/A 11.75
10DRINAWW N/A 10 N/A 16.00 N/A 0.688 N/A 10.88 N/A 19 N/A 12 N/A 1.000 N/A 14.25
12DRINAWW N/A 12 N/A 19.00 N/A 0.812 N/A 12.88 N/A 33 N/A 12 N/A 1.000 N/A 17.00
14DRINAWW N/A 14 N/A 21.00 N/A 0.938 N/A 14.19 N/A 47 N/A 12 N/A 1.125 N/A 18.75
16DRINAWW N/A 16 N/A 23.50 N/A 1.000 N/A 16.19 N/A 60 N/A 16 N/A 1.125 N/A 21.25
18DRINAWW N/A 18 N/A 25.00 N/A 1.062 N/A 18.19 N/A 68 N/A 16 N/A 1.250 N/A 22.75
20DRINAWW N/A 20 N/A 27.50 N/A 1.125 N/A 20.19 N/A 79 N/A 20 N/A 1.250 N/A 25.00
22DRINAWW N/A 22 N/A 29.50 N/A 1.188 N/A 22.19 N/A 90 N/A 20 N/A 1.375 N/A 27.25
24DRINAWW N/A 24 N/A 32.00 N/A 1.250 N/A 24.19 N/A 112 N/A 20 N/A 1.375 N/A 29.50
26DRINAWW N/A 26 N/A 34.25 N/A 1.312 N/A 26.19 N/A 129 N/A 24 N/A 1.375 N/A 31.75
28DRINAWW N/A 28 N/A 36.50 N/A 1.312 N/A 28.19 N/A 141 N/A 28 N/A 1.375 N/A 34.00
30DRINAWW N/A 30 N/A 38.75 N/A 1.375 N/A 30.19 N/A 172 N/A 28 N/A 1.375 N/A 36.00
32DRINAWW N/A 32 N/A 41.75 N/A 1.500 N/A 32.19 N/A 211 N/A 28 N/A 1.625 N/A 38.50
34DRINAWW N/A 34 N/A 43.75 N/A 1.500 N/A 34.19 N/A 220 N/A 32 N/A 1.625 N/A 40.50
36DRINAWW N/A 36 N/A 46.00 N/A 1.625 N/A 36.19 N/A 261 N/A 32 N/A 1.625 N/A 42.75
38DRINAWW N/A 38 N/A 48.75 N/A 1.625 N/A 38.19 N/A 301 N/A 32 N/A 1.625 N/A 45.25
40DRINAWW N/A 40 N/A 50.75 N/A 1.625 N/A 40.19 N/A 313 N/A 36 N/A 1.625 N/A 47.25
42DRINAWW N/A 42 N/A 53.00 N/A 1.750 N/A 42.19 N/A 364 N/A 36 N/A 1.625 N/A 49.50
44DRINAWW N/A 44 N/A 55.25 N/A 1.750 N/A 44.19 N/A 387 N/A 40 N/A 1.625 N/A 51.75
46DRINAWW N/A 46 N/A 57.25 N/A 1.750 N/A 46.19 N/A 404 N/A 40 N/A 1.625 N/A 53.75
48DRINAWW N/A 48 N/A 59.50 N/A 1.875 N/A 48.19 N/A 460 N/A 44 N/A 1.625 N/A 56.00
50DRINAWW N/A 50 N/A 61.75 N/A 2.000 N/A 50.19 N/A 507 N/A 44 N/A 1.875 N/A 58.25
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