12
Friction Table
Equivalent length in meters of straight pipe and valve connections for calculating friction.
1"
1½"
2"
2 ½"
3"
4"
5"
6"
STANDARD 90°
ELBOW
0.84 1.07 1.22 1.68 1.98 2.44 3.35 4.12 4.88
MEDIUM RADIUS
ELBOW 90°
0.69 0.92 1.07 1.37 1.68 2.14 2.75 3.51 4.27
LONG RADIUS
ELBOW 90°
0.54 0.69 0.84 1.07 1.37
1.6
2.14 2.75 3.36
STANDARD 45°
ELBOW
0.38 0.54 0.61 0.77 0.92 1.15 1.53 1.83 2.29
STANDARD TEE
1.68 2.29 2.75 3.36 4.28 5.19 6.71 8.23 10.1
ANGLE GLOBE VALVE
(OPEN)
3.97 5.49 6.71 8.23 10.7 12.2 16.8 21.3 25.9
GLOBE VALVE (OPEN)
7.93 10.7
13
16.8 21.3 24.4 35.1 42.7 48.8
GATE VALVE (OPEN)
0.19 0.25 0.29 0.38 0.43 0.54 0.69 0.84 1.07
INCREASER
1.21 1.52 1.82 2.74 3.35 4.26 6.09 7.92 10.1
REDUCER
0.3
0.3
0.3
0.61 0.61
0.9
1.21 1.21 2.13
SUCTION VALVE
0.91 1.21 1.52 2.13 2.74 3.35 4.87
6.4
7.92
DESCRIPTION
DIAMETER
PART
1¼"
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