Headloss, Valve cover chamber capacity, Valve travel – Watts M500 / M1500 User Manual
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Headloss
Flow Rate - Gallons per minute (Water)
Pressure Drop (psi)
Angle
Globe
2
4
6 8 10
20
40
60 80 100
200
500
1000
2000
5000
10000
20000
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 value is the flow rate in US GPM at 60°F that will cause a 1psi 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
ES-ACV-M500-M5100 1219
© 2012 Watts
USA: Tel. (713) 943-0688 • (713) 944-9445 • www.watts.com
A Watts Water Technologies Company
M500 / M1500 — Full Port Ductile Iron Dual Chamber Basic Valve
Flow Data - ACV M500 (Globe) / M1500 (Angle)
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
CV Factor GPM (Globe)
45
75
100
175
490
770
1200
1750
2125
2890
CV Factor GPM (Angle)
57
91
125
215
571
990
1530
2525
2885
3575
Estimated
Valve Cover Chamber Capacity
Valve Size - Inches
2
2-1/2
3
4
6
8
10
12
14
16
fluid oz.
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 - Inches
2
2-1/2
3
4
6
8
10
12
14
16
Travel - Inches
1/2
5/8
3/4
1
1-1/2
2
2-1/2
3
3-1/2
4
2-1/2
4
10
6
8
2
3
12 14 16
2-1/2
4
10
6
8
2
3
12 14 16