7088-8000
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Table B-2
Cast Iron Pipe Standard Classes
Inside Diameter (ID)
1
and Outside Diameter (OD) in Inches
Class A Class B Class C Class D Class E Class F Class G Class H
inal
OD ID OD ID OD ID OD ID OD ID OD ID OD ID OD ID
3.80
4.80
6.90
9.05
11.10
3.02
3.96
6.02
8.13
10.10
3.96
5.00
7.10
9.05
11.10
3.12
4.10
6.14
8.03
9.96
3.96
5.00
7.10
9.30
11.40
3.06
4.04
6.08
8.18
10.16
3.96
5.00
7.10
9.30
11.40
3.00
3.96
6.00
8.10
10.04
7.22
9.42
11.60
6.06
8.10
10.12
7.22
9.42
11.60
6.00
8.10
10.00
7.38
9.60
11.84
6.08
8.10
10.12
7.38
9.60
11.84
6.00
8.00
10.0
13.20
15.30
17.40
19.50
21.60
12.12
14.16
16.20
18.22
20.26
13.20
15.30
17.40
19.50
21.60
11.96
13.98
16.00
18.00
20.00
13.50
15.65
17.80
19.92
22.06
12.14
14.17
16.20
18.18
20.22
13.50
15.65
17.80
19.92
22.06
12.00
14.01
16.02
18.00
20.00
13.78
15.98
18.16
20.34
22.54
12.14
14.18
16.20
18.20
20.24
13.78
15.98
18.16
20.34
22.54
12.00
14.00
16.00
18.00
20.00
14.08
16.32
18.54
20.78
23.02
12.14
14.18
16.18
18.22
20.24
14.08
16.32
18.54
20.78
23.02
12.0
14.0
16.0
18.0
20.0
25.80
31.74
37.96
44.20
50.50
24.28
28.98
35.98
42.00
47.98
25.80
32.00
38.30
44.50
50.80
24.02
29.94
36.00
41.94
47.96
26.32
32.40
38.70
45.10
51.40
24.22
30.00
35.98
42.02
47.98
26.32
32.74
39.16
45.58
51.98
24.00
30.00
36.00
42.02
48.00
26.90
33.10
39.60
24.28
30.00
36.00
26.90
33.46
40.04
24.00
30.00
36.00
27.76 24.26 27.76 24.0
56.66
62.80
75.34
87.54
53.96
60.02
72.10
84.10
57.10
63.40
76.00
88.54
54.00
60.06
72.10
84.10
57.80
64.20
76.88
54.00
60.20
72.10
58.40
64.82
53.94
60.06
r pipes with cement linings, reduce the pipe inside diameter by two times the lining thickness. Standard and double cement lining thicknesses are listed in
ble B-3.