Install Instructions
Manuals
Brands
Caleffi Manuals
Backflow Preventers
3/4" Press 574 Brass RPZ Backflow Preventer (Lead Free)
1
2
3
4
5
6
7
8
9
10
Hydraulic Characteristics
0
5
10
15
20
25
0
5
10
15
20
25
30
35
40
PRESSURE
LOSS
(PS
I)
FLOW
RATE
(GPM
)
(3/4 inch)
574050A
574056A
(1/2 inch)
574004A
574064A
(kPa)
35
70
100
140
170
(LPM)
20
40
60
80
100
|
|
|
|
|
|
120
|
140
Size
Max. Cv
½"
3.4
¾"
7.8
6
1
...
...
4
5
6
7
8
...
...
12
