Watts F1127-8 - Manual (Page 2)

Flow Rate - Gallons per minute (Water)
Pressure Drop (p.s.i.)
Angle
Globe
2 4 6 8 10 20 40 60 80 100 200 500 1000 2000 5000 10000 20000
100,000
100
80
60
40
30
20
10
8
6
4
3
2
Maximum continuous flow based on velocity of 20 ft. per second.
Maximum intermittent flow based on velocity of 25 ft. per second.
The C
V
factor of a valve is the flow rate in US GPM at 60° F that will cause a 1 psi drop in pressure.
The factors stated are based upon a fully open valve.
C
V
factor can be used in the following equations to determine Flow (Q) and Pressure Drop ( r P):
Q (Flow) = C
V
r P rP (Pressure Drop) = (Q/C
V
) 2
Valve Size - Inches 1-1/4 1-1/2 2 2-1/2 3 4 6 8 10 12 14 16
Maximum Continuous
Flow Rate Gpm (Water)
93 125 208 300 460 800 1800 3100 4900 7000 8500 11000
Maximum Intermittent
Flow Rate Gpm (Water)
115 158 260 370 570 1000 2300 3900 6000 8600 10500 14000
CV Factor GPM (Globe) 29 34 55 75 125 220 460 775 1200 1730 2100 2800
CV Factor GPM (Angle) 39 53 66 99 170 280 650 1100 1600 2500 3060 4210
Estimated
Valve Cover Chamber Capacity
Valve Size (in) 1-1/4 1-1/2 2 2-1/2 3 4 6 8 10 12 14 16
fl.oz. 4 4 4 10 10 22 70
U.S. Gal 1-1/4 2-1/2 4 6-1/2 9-1/2
Valve Travel
Valve Size (in) 1-1/4 1-1/2 2 2-1/2 3 4 6 8 10 12 14 16
Travel (in) 3/8 3/8 1/2 5/8 3/4 1 1-1/2 2 2-1/2 3 3-1/2 4
Flow Data - ACV F100 (Globe) / F1100 (Angle)
2-1/2 4 10 6 8 2 3 12 14 16
2-1/2 4 10 6 8 2 3 12 14 16
1-1/4 1-1/2
1-1/4 1-1/2
Valve Cover Chamber Capacity
Valve Travel
Headloss
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