MAXIMUM DEPTHS OF COVER

for American Mechanical Joint Pipe
ANSI/AWWA C151/A21.51

2 1 1 2 3 Mj Max Depths Of Cover Print

This table tabulates the maximum depth of cover for the five types of laying conditions, along with corresponding nominal wall thickness and maximum rated working pressure, all for special thickness class 53 ductile iron pipe. AMERICAN mechanical joint pipe is available only in special thickness class 53.

 

Size (in.) Thickness (in.) Laying Conditions –
Maximum Depth of Cover (ft.)
Type 1 Type 2 Type 3 Type 4 Type 5
4 0.32 100 100 100 100 100
6 0.34 78 89 100 100 100
8 0.36 55 63 71 88 100
10 0.38 40 46 53 66 87
12 0.40 33 39 45 57 76