Performance
Charts PESB-R Series Valve Pressure Loss
English, Pressure Loss
(psi)
Flow (GPM)
100-PESB (1")
150-PESB (1 1/2")
200-PESB (2")
0.25
1.57
-
-
0.5
2.97
-
-
1
1.78
-
-
5
2.85
-
-
10
2.88
-
-
20
2.55
3.47
-
30
5.8
3.08
-
40
10.16
2.29
-
50
15.95
2.06
3.72
75
-
4.27
3.34
100
-
7.49
4.69
125
-
11.94
8.63
150
-
-
12.61
175
-
-
14.83
200
-
-
18.91
Pressure Loss (bars)
m3/h
l/s
100 - 1"
150 - 1 1/2"
200 - 2"
0,06
0,02
0,11
-
-
0,11
0,03
0,2
-
-
0,23
0,06
0,12
-
-
1,14
0,32
0,19
-
-
2,27
0,63
0,2
-
-
4,54
1,26
0,17
0,24
-
6,81
1,89
0,39
0,21
-
9,08
2,52
0,69
0,16
-
11,36
3,16
1,09
0,14
0,25
17,03
4,73
-
0,29
0,23
22,71
6,31
-
0,51
0,32
28,39
7,89
-
0,81
0,59
34,07
9,46
-
-
0,86
39,75
11,04
-
-
1,01
45,42
12,62
-
-
1,29
Notes
1) Loss values are with flow control fully open.
2) PRS-D module recommended for use below bold line.
Recommendations
1) Rain Bird recommends flow rates in the supply line not to
exceed 7.5 ft./sec. (2,29 m/s) in order to reduce the effects
of water hammer. 2) For flows below 5 GPM (1,14 m3/h; 0,32
l/s), Rain Bird recommends use of upstream filtration to prevent
debris from collecting below the diaphragm. 3) For flows below
10 GPM (2,27 m3/h; 0,63 l/s) Rain Bird recommends the flow
control stem be turned down two full turns from the fully open
position.
