Watts 1116FM - Manual (Page 4)

ES-ACV-1116FM 1308 © 2011 Watts
USA: • Tel. (713) 943-0688 • (713) 944-9445 • www.watts.com A Watts Water Technologies Company
1116FM (Angle) - Pressure Relief Valve
Flow Data - F1100 (Angle)
3 4 6 8
Flow Rate GPM (Water) 460 800 1800 3100
Maximum Intermittent
Flow Rate GPM (Water)
570 1000 2300 3900
Cv Factor GPM (Globe) 125 220 460 775
Cv Factor GPM (Angle) 170 280 650 1100
Valve Cover Chamber Capacity
Valve Size - Inches 3 4 6 8
fluid oz. 10 22 70
U.S. Gal 1-1/4
Valve Travel
Valve Size - Inches 3 4 6 8
Travel - Inches 3/4 1 1-1/2 2
Headloss
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 value 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 (∆ P):
Q (Flow) = C
V
∆ P ∆ P (Pressure Drop) = (Q/C
V
) 2
Angle
2 3 4 5 6 789 10 20 40 60 80 100 200 500 1000 2000 5000 10000 20000
2
3
4
6
8
10
20
40
60
80
100
Pressure Drop (psi)
Flow Rate - Gallons per Minute (Water)
3 4 6 8