Equivalent Resistance Chart

Equivalent Resistance in ft.
Dia
Inches
90° 1.5
Elbow
90° 2.5
Elbow
30°
Branch
3 2.5 1.75 2
4 3.5 2.5 2.5
5 4.5 3.25 3.5
6 5.5 4 4
7 6.5 5 5
8 8 5.5 6
9 9 6.5 7
10 10.25 7.25 8
11 11.5 8 9
12 13 9 10
13 14.5 10 11
14 15.5 11 12
16 18.5 13 14
18 21.5 15 16
20 24 17 18
22 27 19 21
24 30 21 23
26 33 23.5 25
28 37 25.5 27
30 40 28 30
32 43 30 32
34 46 32 35
36 49 35 37
38 53 37 40
40 56 40 42
42 60 43 45
44 64 45 47
46 67 47 50
48 70 49 53