| Size |
Pressure/
Special
Class |
Nominal
Wall
Thickness |
Maximum Depth of Cover
LAYING CONDITIONS (Refer to section on 'Ductile Iron Pipe Installation')
| Type 1 |
Type 2 |
Type 3 |
Type 4 |
Type 5 |
|
| in |
mm |
PC |
SC |
in |
mm |
ft |
m |
ft |
m |
ft |
m |
ft |
m |
ft |
m |
| 4 |
100 |
350 |
-
52 |
.25
.29 |
6.4
7.4 |
53
100+ |
16.0
30+ |
61
100+ |
19.0
30+ |
69
100+ |
21.0
30+ |
85
100+ |
26.0
30+ |
100+
100+ |
30+
30+ |
| 6 |
150 |
350 |
50
52 |
.25
.31 |
6.4
7.9 |
26
67 |
7.9
20.0 |
31
77 |
9.4
23.0 |
37
86 |
11.0
26.0 |
47
100+ |
14.0
30+ |
65
100+ |
20.0
30+ |
| 8 |
200 |
350 |
-
50
52 |
.25
.27
.33 |
6.4
6.9
8.4 |
16
25
47 |
4.9
7.6
14.0 |
20
30
54 |
6.1
9.1
16.0 |
25
36
62 |
7.6
11.0
19.0 |
34
46
77 |
10.0
14.0
23.0 |
50
64
99 |
15.0
20.0
30.0 |
| 10 |
250 |
350 |
-
50
52 |
.26
.29
.35 |
6.6
7.4
8.9 |
11
19
35 |
3.4
5.8
11.0 |
15
24
41 |
4.6
7.3
12.0 |
19
29
47 |
5.8
8.8
14.0 |
28
38
59 |
8.5
12.0
18.0 |
45
55
79 |
14.0
17.0
24.0 |
| 12 |
300 |
350 |
-
50
52 |
.28
.31
.37 |
7.1
7.9
9.4 |
10
17
30 |
3.0
5.2
9.1 |
15
22
35 |
4.6
6.7
11.0 |
19
27
41 |
5.8
8.2
12.0 |
28
36
53 |
8.5
11.0
16.0 |
44
52
71 |
13.0
16.0
22.0 |
| 14 |
350 |
250
300
350 |
-
-
-
50
52 |
.28
.30
.31
.33
.39 |
7.1
7.6
7.9
8.4
9.9 |
Not
Recommended |
11
13
14
19
29 |
3.4
4.0
4.3
5.8
8.8 |
15
17
19
24
34 |
4.6
5.2
5.8
7.3
10.0 |
23
26
27
33
44 |
7.0
7.9
8.2
10.0
13.0 |
36
42
44
49
62 |
11.0
13.0
13.0
15.0
19.0 |
| 16 |
400 |
250
300
350 |
-
-
50
52 |
.30
.32
.34
.40 |
7.6
8.1
8.6
10.2 |
Not
Recommended |
11
13
15
25 |
3.4
4.0
4.6
7.6 |
15
17
20
30 |
4.6
5.2
6.1
9.1 |
24
26
28
40 |
7.3
7.9
8.5
12.0 |
34
39
44
57 |
10.0
12.0
13.0
17.0 |
| 18 |
450 |
250
300
350 |
-
-
50
-
52 |
.31
.34
.35
.36
.41 |
7.9
8.6
8.9
9.1
10.4 |
Not
Recommended |
10
13
14
15
22 |
3.0
4.0
4.3
4.6
6.7 |
14
17
18
19
27 |
4.3
5.2
5.5
5.8
8.2 |
22
26
27
28
36 |
6.7
7.9
8.2
8.5
11.0 |
31
36
39
41
53 |
9.4
11.0
12.0
12.0
16 |
| 20 |
500 |
250
300
350 |
-
50
-
52 |
.33
.36
.38
.42 |
8.4
9.1
9.7
10.7 |
Not
Recommended |
10
13
15
20 |
3.0
4.0
4.6
6.1 |
14
17
19
25 |
4.3
5.2
5.8
7.6 |
22
26
28
34 |
6.7
7.9
8.5
10.0 |
30
35
38
50 |
9.1
11.0
12.0
15.0 |
| 24 |
600 |
200
250
300
350 |
-
-
50
-
-
52 |
.33
.37
.38
.40
.43
.44 |
8.4
9.4
9.7
10.2
10.9
11.2 |
Not
Recommended |
8
11
12
13
15
17 |
2.4
3.4
3.7
4.0
4.6
5.2 |
12
15
17
17
19
21 |
3.7
4.6
5.2
5.2
5.8
6.4 |
17
20
23
24
28
30 |
5.2
6.1
7.0
7.3
8.5
9.2 |
25
29
31
32
37
41 |
7.6
8.8
9.4
9.8
11.0
12.5 |
| 30 |
750 |
150
200
250
300
350 |
-
-
50
-
-
52
- |
.34
.38
.39
.42
.45
.47
.49 |
8.6
9.7
9.9
10.7
11.4
11.9
12.4 |
Not
Recommended |
-
8
10
11
12
14
15 |
-
2.4
3.0
3.4
3.7
4.3
4.6
|
9
12
14
15
16
19
19 |
2.7
3.7
4.3
4.6
4.9
5.8
5.8 |
14
16
18
19
21
24
25 |
4.3
4.9
5.5
5.8
6.4
7.3
7.6 |
22
24
25
27
29
33
33 |
6.7
7.3
7.6
8.2
8.8
10.0
10.0 |
| 36 |
900 |
150
200
250
300
350 |
-
-
50
-
-
52
- |
.38
.42
.43
.47
.51
.53
.56 |
9.7
10.7
10.9
11.9
13.0
13.5
14.2 |
Not
Recommended |
-
8
10
10
12
15
15 |
-
2.4
3.0
3.0
3.7
4.6
4.6 |
9
12
13
14
16
19
19 |
2.7
3.7
4.0
4.3
4.9
5.8
5.8 |
14
15
17
18
20
24
24 |
4.3
4.6
5.2
5.5
6.1
7.3
7.3 |
21
23
25
25
28
32
32 |
6.4
7.0
7.6
7.6
8.5
9.8
9.8 |
• Maximum
depths for Pressure Classes are as per Table 14 AWWA C150-02.
• Maximum depths for Special Classes are as per Table 14 AWWA C150-86
• Dimensions are subject to manufacturing tolerances.
• Contact Canada Pipe for availability of other Special Classes and larger
sizes. |
