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AWWA C228-14 Stainless Steel Ring Flanges

Classes SA, SB, SD, SE

AWWA C228-08 Stainless Steel Ring Flanges Classes SA, SB, SD, SEAWWA C228-14 Stainless Steel Ring Flanges Classes SA, SB, SD, SE
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(size 44.2Kb)
Nom.
Pipe
Size
OD of
Flange
(A)
ID of Flange (B) # of
Bolts
Bolt Circle
Dia
Dia
of Bolts
Thickness of Flange
    Pipe Tube       Class SA
50 psi
Class SB
86 psi
Class SD
150 psi
Class SE
275 psi
2 6.00 2.44 2.03 4 4.75 0.75 0.5 0.625 0.625 1.125
2.5 7.00 2.94 2.53 4 5.50 0.75 0.5 0.625 0.625 1.125
3 7.50 3.57 3.03 4 6.00 0.75 0.5 0.625 0.625 1.125
4 9.00 4.57 4.03 8 7.50 0.75 0.5 0.625 0.625 1.125
5 10.00 5.66 5.03 8 8.50 0.875 0.5 0.625 0.625 1.188
6 11.00 6.72 6.03 8 9.50 0.875 0.5 0.688 0.688 1.313
8 13.50 8.72 8.03 8 11.75 0.875 0.5 0.688 0.688 1.5
10 16.00 10.88 10.03 12 14.25 1 0.625 0.688 0.688 1.563
12 19.00 12.88 12.06 12 17.00 1 0.625 0.688 0.812 1.75
14 21.00 14.19 - 12 18.75 1.125 0.625 0.688 0.938 1.875
16 23.50 16.19 - 16 21.25 1.125 Use class SB 0.688 1 2
18 25.00 18.19 - 16 22.75 1.25 Use class SB 0.688 1.062 2.125
20 27.50 20.19 - 20 25.00 1.25 Use class SB 0.688 1.125 2.375
22 29.50 22.19 - 20 27.25 1.375 Use class SB 0.75 1.188 2.5
24 32.00 24.19 - 20 29.50 1.375 Use class SB 0.75 1.25 2.625
26 34.25 26.25 - 24 31.75 1.375 Use class SB 0.812 1.312 2.75
28 36.50 28.25 - 28 34.00 1.375 Use class SB 0.875 1.312 2.75
30 38.75 30.25 - 28 36.00 1.375 Use class SB 0.875 1.375 2.875
32 41.75 32.25 - 28 38.50 1.625 Use class SB 0.938 1.5 3
34 43.75 34.25 - 32 40.50 1.625 Use class SB 0.938 1.5 3
36 46.00 36.25 - 32 42.75 1.625 Use class SB 1 1.625 3.125
38 48.75 38.25 - 32 45.25 1.625 Use class SB 1 1.625 3.125
40 50.75 40.25 - 36 47.25 1.625 Use class SB 1 1.625 3.25
42 53.00 42.25 - 36 49.50 1.625 Use class SB 1.125 1.75 3.375
44 55.25 44.25 - 40 51.75 1.625 Use class SB 1.125 1.75 3.375
46 57.25 46.25 - 40 53.75 1.625 Use class SB 1.125 1.75 3.438
48 59.50 48.25 - 44 56.00 1.625 Use class SB 1.25 1.875 3.5
50 61.75 50.25 - 44 58.25 1.875 Use class SB 1.25 2 3.5
52 64.00 52.25 - 44 60.50 1.875 Use class SB 1.25 2 3.625
54 66.25 54.25 - 44 62.75 1.875 Use class SB 1.375 2.125 3.75
60 73.00 60.25 - 52 69.25 1.875 Use class SB 1.5 2.25 3.875
66 80.00 66.25 - 52 76.00 1.875 Use class SB 1.625 2.5 4.25
72 86.50 72.25 - 60 82.50 1.875 Use class SB 1.75 2.625 4.375

DIMENSIONS ARE IN INCHES
The purchser shall specify the ID of the flange if other than standard as shown in table.

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