. What is the head loss
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Problem #5: Chapter 10
An 8 inch Schedule 40 steel drainage pipe has to be re-routed to avoid an existing
piece of equipment. The radius of the bend is 64 inches. What is the head loss
associated with this bend if the velocity is 2 ft/s?

Transcribed Image Text:48
h̟ = K * v?/2g
44
40
K = (L/D)*f,
36
ulence for new, clean, commercial
32
28
Nominal Pipe Size
Friction
24
U.S. (in)
Metric (mm)
factor, fr
20
3, 3½
DN 80, DN 90
0.017
4
DN 100
0.016
16
5, 6
DN 125, DN 150
0.015
12
K = fr(L_JD) for pipe bend
8
8
DN 200
0.014
10-14
DN 250 to DN 350
0.013
16-22
DN 400 to DN 550
0.012
4
24-36
DN 600 to DN 900
0.011
0 2 4
6 8
10
12
14
16
18
20
Relative radius r/ D
Equivalent length ratio L„ID
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