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PROJECT NAME : 3 Nos Head Quarters
Head loss calculation using ( 2 ) HAZEN-WILLIAMS Formula
no. mm m mm GPM l/s 0.2
1.0
1.0
2.0
0.3
0.3
0.9
0.5
2.0
1.0 1/1 m m/s 1/1 1/1 m m m m m m
Suction TO A 2" cop 49.8 15 140 40 2.52 2 1 1 4 9 1 14.7 1.29591 64482.595 0.03871 3.87 0.58 1.26 1.84 1.84 1.839
A TO B 2" cop 49.8 4 140 40 2.52 1 0.9 1.29591 64482.595 0.03871 3.87 0.15 0.08 0.23 0.23 0.232
B TO C 1 1/4" cop 31.6 10 140 26 1.64 1 1 1 1.7 -4 2.08554 65950.934 0.15857 15.9 1.59 0.38 1.96 -2 -0.2
C TO D 1 1/4" cop 31.6 5 140 24 1.51 1 2 2.1 -2.4 1.92511 60877.785 0.13672 13.7 0.68 0.4 1.08 -1.3 -1.52
D TO E 1 1/4" cop 31.6 5 140 24 1.51 1 0.9 1.92511 60877.785 0.13672 13.7 0.68 0.17 0.85 0.85 -0.66
E TO F 1 1/4" cop 31.6 15 140 22 1.39 1 1 1.2 1.76469 55804.636 0.11638 11.6 1.75 0.19 1.94 1.94 1.271
F TO G 1 1/4" cop 31.6 10 140 20 1.26 1 1 1.2 1.60426 50731.487 0.09754 9.75 0.98 0.16 1.13 1.13 2.404
G TO H 1 1/4" cop 31.6 5 140 16 1.03 1 1 1.4 1.31549 41599.82 0.06754 6.75 0.34 0.12 0.46 0.46 2.866
H TO I 1" cop 25.3 5 140 12 0.73 1 0.9 1.45678 36817.294 0.10599 10.6 0.53 0.1 0.63 0.63 3.493
I TO J 3/4" cop 18.9 2 140 7 0.41 1 1 1.1 1.45608 27553.326 0.14843 14.8 0.3 0.12 0.42 0.42 3.909
J TO K 3/4" cop 18.9 3 140 6 0.36 1 0.9 1.28807 24374.096 0.11828 11.8 0.35 0.08 0.43 0.43 4.339
K TO L 3/4" cop 18.9 2 140 3 0.16 1 1 1.4 0.56003 10597.433 0.02529 2.53 0.05 0.02 0.07 0.07 4.412
L TO M 1/2" cop 13.4 2 140 2 0.11 1 3 1 2 0.74612 9987.4608 0.06445 6.44 0.13 0.06 0.19 0.19 4.598
TOTAL 83 4 1 1 11 22 3 1 30.4 -6.4 18.7191 574137.25 1.25332 125 8 3 11
Static head = -6.40 m
Filter pressure drop 1 bar = 10.00 m
Outlet pressure 20 PSI = 14.00 m
total friction loss = 11.23 m
total dynamic head = 28.83 m
Add 10 % safety = 31.71 m , 104 ft
no. part of pipe
DN Nominal diameter
Foot valve
ID Pipe Inner diameter
L Pipe length
C Hazen constant
Q Flow rate
Multimedia filter
4.83
dh(1) Liner loss
Strainer
discharge outlet
Accumulative Pressure
DH Total loss
Total head (DH+GH) / pipe
V Mean Velocity
RE Reynolds number
Total local factors
DN
check valve
Loss m per 100 m
dh(2) Local loss
GH Static head
Loss m per m
Local factors of fittings
elbow ( 45 leg.)
elbow ( 90 leg.)
tee
reducer
gate valve
