Instructions
Manuals
Brands
Caleffi Manuals
Combo Pressure Valves
1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
1
2
3
4
5
6
VENT
3
Flow rate graph
10
2
5
10
5
20
50
Δ
p
(psi)
G
(l/min) (
gpm
)
20
10
5
(psi) (bar)
20
1
0
.5
10
2
5
15
1
0.5
0
.3
Cv = 0.7
1
2
3
4
5
...
6
