• AWWA E Hub C207-01 Steel Hub 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)

Overall Thickness (L)

Hub Diameter (E)

Inside Diameter (B)

Approximate Weight (lbs)

Number of Bolt Holes

Diameter of Bolt Holes

Diameter of Bolt Circle (C)

N/A 4 N/A 9.00 N/A 0.500 N/A 0.875 N/A 5.312 N/A 4.57 N/A 7 N/A 8 N/A 0.750 N/A 7.50
N/A 5 N/A 10.00 N/A 0.562 N/A 1.250 N/A 6.312 N/A 5.66 N/A 8 N/A 8 N/A 0.875 N/A 8.50
N/A 6 N/A 11.00 N/A 0.562 N/A 1.250 N/A 7.562 N/A 6.72 N/A 13 N/A 8 N/A 0.875 N/A 9.50
N/A 8 N/A 13.50 N/A 0.562 N/A 1.250 N/A 9.688 N/A 8.72 N/A 18 N/A 8 N/A 0.875 N/A 11.75
N/A 10 N/A 16.00 N/A 0.688 N/A 1.250 N/A 12.000 N/A 10.88 N/A 26 N/A 12 N/A 1.000 N/A 14.25
N/A 12 N/A 19.00 N/A 0.688 N/A 1.250 N/A 14.375 N/A 12.88 N/A 42 N/A 12 N/A 1.000 N/A 17.00
N/A 14 N/A 21.00 N/A 0.750 N/A 1.250 N/A 15.750 N/A 14.19 N/A 44 N/A 12 N/A 1.125 N/A 18.75
N/A 16 N/A 23.50 N/A 0.750 N/A 1.250 N/A 18.000 N/A 16.19 N/A 58 N/A 16 N/A 1.125 N/A 21.25
N/A 18 N/A 25.00 N/A 0.750 N/A 1.250 N/A 19.875 N/A 18.19 N/A 59 N/A 16 N/A 1.250 N/A 22.75
N/A 20 N/A 27.50 N/A 0.750 N/A 1.250 N/A 22.000 N/A 20.19 N/A 69 N/A 20 N/A 1.250 N/A 25.00
N/A 22 N/A 29.50 N/A 1.000 N/A 1.750 N/A 24.250 N/A 22.19 N/A 76 N/A 20 N/A 1.375 N/A 27.25
N/A 24 N/A 32.00 N/A 1.000 N/A 1.750 N/A 26.125 N/A 24.19 N/A 115 N/A 20 N/A 1.375 N/A 29.50
N/A 26 N/A 34.25 N/A 1.000 N/A 1.750 N/A 28.500 N/A 26.19 N/A 125 N/A 24 N/A 1.375 N/A 31.75
N/A 28 N/A 36.50 N/A 1.000 N/A 1.750 N/A 30.500 N/A 28.19 N/A 140 N/A 28 N/A 1.375 N/A 34.00
N/A 30 N/A 38.75 N/A 1.000 N/A 1.750 N/A 32.500 N/A 30.19 N/A 150 N/A 28 N/A 1.375 N/A 36.00
N/A 32 N/A 41.75 N/A 1.125 N/A 1.750 N/A 34.750 N/A 32.19 N/A 205 N/A 28 N/A 1.625 N/A 38.50
N/A 34 N/A 43.75 N/A 1.125 N/A 1.750 N/A 36.750 N/A 34.19 N/A 215 N/A 32 N/A 1.625 N/A 40.50
N/A 36 N/A 46.00 N/A 1.125 N/A 1.750 N/A 38.750 N/A 36.19 N/A 235 N/A 32 N/A 1.625 N/A 42.75
N/A 38 N/A 48.75 N/A 1.125 N/A 1.750 N/A 40.750 N/A 38.19 N/A 265 N/A 32 N/A 1.625 N/A 45.25
N/A 40 N/A 50.75 N/A 1.125 N/A 1.750 N/A 43.000 N/A 40.19 N/A 280 N/A 36 N/A 1.625 N/A 47.25
N/A 42 N/A 53.00 N/A 1.250 N/A 1.750 N/A 45.000 N/A 42.19 N/A 330 N/A 36 N/A 1.625 N/A 49.50
N/A 44 N/A 55.25 N/A 1.250 N/A 2.250 N/A 47.000 N/A 44.19 N/A 350 N/A 40 N/A 1.625 N/A 51.75
N/A 46 N/A 57.25 N/A 1.250 N/A 2.250 N/A 49.000 N/A 46.19 N/A 365 N/A 40 N/A 1.625 N/A 53.75
N/A 48 N/A 59.50 N/A 1.375 N/A 2.500 N/A 51.000 N/A 48.19 N/A 425 N/A 44 N/A 1.625 N/A 56.00
N/A 50 N/A 61.75 N/A 1.375 N/A 2.500 N/A 53.000 N/A 50.19 N/A 450 N/A 44 N/A 1.875 N/A 58.25
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