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FOR_
PRESSURE LOSS CALCULATIONS
CHK
VALVE #
V/13
GPM
8.9
WATER METER (1 1/211
)
0.4
SERVICE LINE
-
GATE VALVES
1.2
BACKFLOW PREVENTER
12.0
MASTER VALVE
1.3
VALVE
3.84
MAINLINE (640'@ 211)
0.9
LATERAL LINE
0.2
ELEVATION CHANGE (UP GRADE +12')
+5.2
TOTAL PRESSURE LOSS
25.04
'10 % RESIDUAL PRESSURE REQUIRED
2.5
MINIMUM OPERATING PRESSURE
30
DESIGN PRESSURE REQUIRED
57.54
AVAILABLE PRESSURE (P.O.C.)
79.24
RESIDUAL PRESSURE REMAINING
+21.7
""' 9 6
23 V — 4 V M
// 1" 12 3 111 16
1640 S.F.
------------------- 39 S.F.
)40
LEGEND SEE SHEET L9 & L 10
A Me
POINT'OF CONNECTION: 'V'
1 1/2" WATER METER, REFER TO CIVIL PLANS. CONTRACTOR
TO INSTALL A 1 1/2" FEBCO 825Y REDUCED PRESSURE TYPE
BACKFLOW PREVENTER AND LOCATE INA LEMEUR VANDAL -
RESISTANT STEEL MESH ENCLOSURE. COORDINATE LOCATION
WITH CITY INSPECTOR. (SCREEN WITH SHRUBS)
RESIDUAL PRESSURE: 21.7 PSI
DESIGN PRESSURE: 57.5 PSI
MAXIMUM DEMAND: 18.0 GPM
26 Y 500 S.F.
9,7-
K N 0 X ` A VENUE
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S B T E S G A P e S
Landscape Architecture
and Planning
3190 B2 Airport Loop Drive.
Costa Mesa, CA 92626
Richard Polhamus, License CA—#2782
(949) 644-9370 (714) 210-3140 FAX
/FREVISION
10-14-10 -PLAN CHECK
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