User guide
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 Cover Chamber Capacity
Valve Size (in) 2 2-1/2 3 4 6 8 10 12 14 16
fl.oz. 4 10 10 22 70
U.S. Gal 1-1/4 2-1/2 4 6-1/2 9-1/2
Valve Size - Inches 2 2-1/2 3 4 6 8 10 12 14 16
Maximum Continuous
Flow Rate Gpm (Water)
210 300 485 800 1850 3100 5000 7000 8500 11100
Maximum Intermittent
Flow Rate Gpm (Water)
265 390 590 1000 2300 4000 6250 8900 10800 14100
C
V
Factor GPM (Globe) 45 75 100 175 490 770 1200 1750 2125 2890
C
V
Factor GPM (Angle) 57 91 125 215 571 990 1530 2525 2885 3575
Estimated
Valve Travel
Valve Size (in) 2 2-1/2 3 4 6 8 10 12 14 16
Travel (in) 1/2 5/8 3/4 1 1-1/2 2 2-1/2 3 3-1/2 4
Flow Data - ACV M500 (Globe) / M1500 (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
Valve Cover Chamber Capacity
Valve Travel
Headloss
8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com