ROUND HOLES FOR MORTAR JOINTS IN
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For holes not
intended for installation of field installed rubber connectors.
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Both through
holes and partial indentation knock out formers available.
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Partial Hole/Knockouts
must be ordered with attachment so they can be held tight
to jacket wall.
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Hole form diameters
do not represent specific inside pipe diameter applications
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Hole diameters
shown below are measured at the face of the Hole Form or at
the inside radius of the manhole.
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MANHOLE
ID
WALL |
48"
5"
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Wall
Taper
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60"
6"
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Wall
Taper
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72"
7"
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Wall
Taper
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84"
8"
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Wall
Taper
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96"
9"
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Wall
Taper"
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Hole Dia. |
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4" |
4485 |
5.4 |
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| 5" |
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7" |
7485 |
10.6 |
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10" |
10485 |
7.1 |
10606 |
7.1 |
10727 |
9.6 |
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12" |
12485 |
10.6 |
12606 |
10.3 |
12727 |
10.9 |
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12969 |
10.4 |
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14" |
14485 |
8.5 |
14606 |
10.9 |
14727 |
10.6 |
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15" |
15485 |
8.5 |
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15969 |
9.8 |
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16" |
16485 |
10.6 |
16606 |
10.0 |
16727 |
10.6 |
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18" |
18485 |
11.0 |
18606 |
9.2 |
18727 |
10.1 |
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20" |
20485 |
11.3 |
20606 |
10.6 |
20727 |
11.6 |
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21" |
21485 |
9.9 |
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22" |
22485 |
7.1 |
22606 |
10.3 |
22727 |
10.6 |
22848 |
10.8 |
22969 |
11.0 |
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24" |
24485 |
9.2 |
24606 |
10.5 |
24727 |
8.9 |
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26" |
26485 |
16.4 |
26606 |
22.1 |
26727 |
18.1 |
26848 |
10.4 |
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28" |
28485 |
14.0 |
28606 |
21.9 |
28727 |
18.1 |
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30" |
30485 |
16.4 |
30606 |
18.4 |
30727 |
19.0 |
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32" |
32485 |
17.0 |
32606 |
18.4 |
32727 |
18.5 |
32848 |
11.3 |
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34" |
34485 |
16.7 |
34606 |
17.1 |
34727 |
19.9 |
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34969 |
19.5 |
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35" |
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35727 |
17.2 |
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36" |
36485 |
17.4 |
36606 |
20.6 |
36727 |
18.5 |
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36969 |
19.9 |
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38" |
38485 |
21.8 |
38606 |
18.4 |
38727 |
18.7 |
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40" |
40485 |
19.9 |
40606 |
23.4 |
40727 |
24.3 |
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42" |
42485 |
21.8 |
42606 |
21.1 |
42727 |
17.4 |
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42969 |
20.0 |
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44" |
44485 |
22.4 |
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45" |
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45606 |
20.6 |
45727 |
24.1 |
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48" |
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48606 |
21.1 |
48727 |
19.7 |
48848 |
17.8 |
48969 |
19.9 |
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52" |
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52606 |
19.2 |
52727 |
19.0 |
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55" |
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55606 |
18.4 |
55727 |
19.9 |
55848 |
9.5 |
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58" |
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58727 |
8.1 |
58848 |
9.5 |
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62" |
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62727 |
21.4 |
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64" |
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64727 |
14.3 |
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| 72" |
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72848 |
10.0 |
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| 74" |
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| 76" |
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Calculation for determining largest opening of hole form
WITH known wall taper:
((WALL TAPER X TANGENT) X 2) X WALL THICKNESS + FACE DIAMETER
This catalog page is available as an excel speadsheet to
include large diameter opening of hole form.
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