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Joint Dimensions

AMERICAN Ductile Iron Mechanical Joint Fittings
ANSI/AWWA C110 and C153
Mechanical Joint Dimensions

AWWA C111/A21.11

ADIP Table No. 11-3

Size
in.		 Dimensions in Inches
A
Plain
End		 B J K1 K2 L M S No.
per
Joint		 Size
in.
C110 C153
4 4.80 2.50 7.50 9.38 9.12 1.00 .60 .75 .65 4 3/4 x 3 1/2
6 6.90 2.50 9.50 11.31 11.12 1.06 .63 .88 .70 6 3/4 x 3 1/2
8 9.05 2.50 11.75 13.63 13.37 1.12 .66 1.00 .75 6 3/4 x 4
10 11.10 2.50 14.00 15.81 15.62 1.19 .70 1.00 .80 8 3/4 x 4
12 13.20 2.50 16.25 18.06 18.00 1.25 .73 1.00 .85 8 3/4 x 4
14 15.30 3.50 18.75 20.69 20.25 1.31 .79 1.25 .89 10 3/4 x 4 1/2
16 17.40 3.50 21.00 22.94 22.50 1.38 .85 1.31 .97 12 3/4 x 4 1/2
18 19.50 3.50 23.25 25.28 24.75 1.44 1.00 1.38 1.05 12 3/4 x 4 1/2
20 21.60 3.50 25.50 27.08 27.00 1.50 1.02 1.44 1.12 14 3/4 x 4 1/2
24 25.80 3.50 30.00 31.75 31.50 1.62 1.02 1.56 1.22 16 3/4 x 5
30 32.00 4.00 36.88 39.12 39.12 1.81 - 2.00 1.50 20 1 x 6
36 38.30 4.00 43.75 46.00 46.00 2.00 - 2.00 1.80 24 1 x 6
42 44.50 4.00 50.62 53.12 53.12 2.00 - 2.00 1.95 28 1 1/4 x 6 1/2
48 50.80 4.00 57.50 60.00 60.00 2.00 - 2.00 2.20 32 1 1/4 x 6 1/2

Notes:
For mechanical joints for pipe see Section 2.
For tolerances and additional dimensions see AWWA C111.
Bolt holes are 1?8" larger than the bolt diameters.
Mechanical Joint Retainer Gland designs (by others) often require longer than above standard bolting. See Sections 9 and 12
regarding alternative restrained joints, and also retainer gland applications.

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