Document bB62bpw8xV4yJZogoEwjnwke6
738
CHAPTER 32
1956 Guide
Table 1.
Circular Equivalents of Rectangular Ducts fqr Equal Friction, and Capacity (Continued)
Dimensions in Inches
Side Rectan
10.0 10.5 lii) 113 . 12.0. 123 .13.0 133 14.0 143 .15.0 153 16.0
gular Duct
, 3.0 . 5.7 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 - 3.5 ; 6.3 6.4 6.5 6.7 6.8 6.9 7.0 7.1 7.2 7,3 7.4 7.5 .7.6
4.0 6.8 6.9 '7.1 7.2 7.3 7.5 7.6 7.7 7.8 7.9 8.1 8.2 8.3 4.5 7.2 7.4 7.5 7.7 7.8 8.0 8.1 8.2 8.4 8.5 8.6 8.7 8.9 5.0 7.6 7.8 8.0 8.1 8.3 8.4 8.6 8.7 8.9 9.0 9.1 9.3 9.4 5.5 8.0 8.2 8.4 8.6 .8.7 8.8 9.0 9.2 9.4 9.5 9.6. 9.8 9.8
Side.
6 7 8 9 10 11 12 13 14 15 16 17
GULAR
Duct
. 6 6.6 ' 7 7.1 7.7
8 7.5 8.2 8.8 9 8.0 8.6 9.3 9.9
10 8.4 9.1 9.8 10.4 10.9 11 8:8 9.5 10.2 10.8 11.4 12.0 12 .9,1 9.9 10:7 11.3 11.9 12.5 13.1 13 9.5 ' 10.3 11.1 11.8 12.4 13.0 13.6 14:2
14 9.8 10.7 11.5 12.2 12.9 13.5 14.2 14.7 15.3 15 10.1 11.0 11.8 12.6 13.3 14.0 14.6 15.3 15.8 16.4 16 10.4 11.4 12.2 13.0 13.7 14.4 15.1 15.7 16.3 16.9 17.5 17 10.7 11.7 12.5 13.4 14.1 14.9 15.5 16.1 16.8 17.4 18.0 18.6
18 19
11.0 11.2
11.9 12.2
12.9 13.2
13.7 14.1
14.5 15.3 14.9. 15.6
16.0 16.4
16.6 17.1
17.3 17.8
17.9 18.4
18.5 19.0
19.1 19.6
19.7 20.2 20.8
20 22
11.5 12.0
12.5 13.1
13.5 14.1
14.4 15.0
15.2 15.9
15.9 16.7
16.8 17.6
17.5 18.3
18.2 19.1
18.8 19.7
19.5 20.4
20.1 21.0
20.7 21.3
21. 22.3
24 26 28 30
12.4 13.6 14.6 15.6 16,6 17,5 18.3 19.1 19.8 20.6 21.3 21.9 22.6 23.2 12.8 14.1 15.2 16,2 17.2 18.1 19.0 19.8 20.6 21.4 22.1 22.8 23.5 24.1 13.2 14.5 15.6 16.7 17.7 18.7 19.6 20.5 21.3 22.1 22.9 23.6 24.4 25.0 13.6 14.9 16.1 17.2 18.3 19.3 20.2 21.1 22.0 22.9 23.7 24.4 25.2 25.9
32 . 14.0 15.3 16.5 17.7 18.8 19.8 20.8 21.8 22.7 23.6 24.4 25.2 26.0 26.7
34 36
14.4 14.7
15.7 16.1
17.0 17.4
18.2 18.6
19.3 19.8
20.4 20.9
21.4 21.9
22.4 23.0
23.3 23.9
24.2 24.8
25.1 25.8
25.9 26.6
26.7 27.5 27.4 28.3
38 15.0 16.4 17.8 19.0 20.3 21.4 22,5 23.5 24.5 25.4 26.4 27.3 28.1 29.0
40 42
15.3 15.6
16.8 17.1
18.2 18.5
19.4 19.8
20.7 21.1
21.9 22.3
23.0 23.4
24.0 24.5
25.1 25.6
26.0 26.6
27.0 27.6
27.9 28.5
28.8 29.7 29.4 30.4
44 46
15.9 16.2
17.5 17.8
18.9 19.2
20.2 20.6
21.5 21.9
22.7 23.2
23.9 24.3
25.0 25.5
26.1 26.7
27.2 27.7
28.2 28.7
29.1 29.7
30.0 31.0 30.6 31.6
48
50 52
54
16.5 16.8
17.0 17.3
18.1 18.4
18.7
19.0
19.6 19.9 20.2 20.5
20.9 21.3 21.6 22.0
22.3 22.7 23.1 23.4
23.6 2410 24.4 24.8
24.8 25.2 25.6 26.1
26.0 26.4
26.8
27.3
27.2
27.6 28.1 28.5
28.2 28.7 29.2 29.7
29.2 29.8 30.3 30.8
30.2 30.8 31.4 31.9
31.2 32.2 31.8 32.8
32.4 33.4 32.9 33.9
56 58 60 62
17.6 17.8 18.1 18.3
19.3 19.5 19.8
20.1
20.9
21.1 21.4
21.7
22.4 22.7 23.0 23.3
23.8 24.2 24.5 24.8
25.2
25.5 25. S 26.2
26.5
26.9 27.3 27.6
27.7 28.2 28.7 29.0
28.9 29.3
29.8 30.2
30.1 30.5
31.0 31.4
31.2 31.7 32.2
32.6
32.4
32.9 33.4 33.8
33.4 34.5 33.9 35.0 34.5 35.5
35.0 36.0
64 66 68 70
18.6 18.8 19.0 19.2
20.3 20.6 20.8 21.
22.0 22.3 22.5 22.8
23.6 23.9 24.2 24.5
25.2 25.5 25.8 26.1
26.5
26.9 27.3 27.6
27.9 28.3 28.7
29.1
29.3 29.7
30.1 30.4
30.6 31.0 31.4
31.8
31.8 32.2 32.6 33.1
33.1 33.5 33.9 34.3
34.2 34.7 35.1 35.6
35.5 36.5 35.9 37.0 36.3 37,5 36.8 37.9
Dimensions in Inches
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