Water Applica on Rate & Travel Speed
Depth Of Water Applied:
The depth of water applied by the Water-Reel is regulated by the retrac on speed (speed the sprinkler is moving over the ground).
It is also affected by the amount of water being discharged by the sprinkler head. The sprinkler nozzle size and the water pressure
determine the amount of discharged water. These two factors are determined by the available water and the capability of the
water pump at the water supply. The selec on of the sprinkler nozzle needs to be made based on the water supply and pump
performance.
Travel Speed Se ngs - Using the Performance Guide:
Example: With a Nelson SR75 sprinkler, determine the inlet pressure, speed se ngs and sprinkler nozzle size required to apply
0.35 - 0.37 inches of water. (See Illustra on)
Note: The inlet PSI is the pressure reading while the machine is running and the sprinkler is opera ng. If the pressure drops while
running, use the chart to determine the performance at the new inlet pressure. If the pressure drops below the lowest inlet
pressure shown, consider using a smaller size nozzle. ( Inlet PSI is always read at the Water Reel )
As shown below, a variety of se ngs can accomplish 0.35 - 0.37 inches of water applica on.
*With a .4” nozzle and an inlet PSI of 53; 0.36” can be applied at a rate of 60 . per hour.
*With a .4” nozzle and an inlet PSI of 106; 0.37” can be applied at a rate of 70 . per hour.
Example shown below
* With a .45” nozzle and an inlet PSI of 53; 0.36” can be applied at a rate of 70 . per hour.
* With a .5” nozzle and an inlet PSI of 62; 0.35” can be applied at a rate of 85 . per hour.
Variances with inlet pressures and nozzle sizes will give different applica on speed rates and irrigated areas.
MODEL B 140G X
350
PERFORMANCE
20
30
40
50
60
70
75
85
PSI
GPM
DIA WIDTH
LENGTH
.4"
40
27
149
119
X
410
53
1.09 0.73 0.55 0.44 0.36 0.31 0.29 0.26
.4"
80
39
182
146
X
423
106
1.29 0.86 0.64 0.52 0.43 0.37 0.34 0.30
.45"
35
32
154
123
X
412
53
1.25 0.83 0.63 0.50 0.42 0.36 0.33 0.29
.45"
80
49
207
166
X
433
120
1.42 0.95 0.71 0.57 0.47 0.41 0.38 0.34
.5"
35
40
164
131
X
416
62
1.47 0.98 0.73 0.59 0.49 0.42 0.39 0.35
.5"
80
61
222
178
X
439
139
1.65 1.10 0.83 0.66 0.55 0.47 0.44 0.39
.55"
35
49
172
138
X
419
75
1.71 1.14 0.86 0.69 0.57 0.49 0.46 0.40
.55"
70
69
221
177
X
438
145
1.88 1.25 0.94 0.75 0.63 0.54 0.50 0.44
17.5 11.7
8.8
7.0
5.8
5.0
4.7
4.1
3
5
6
8
9
11
12
13
Avg. Strokes Per Min:
MODEL B140G X
350'
NELSON SR75
Nozzle
size
SPRINKLER
Irrigated Width 80%
Wetted Diameter
INLET
PSI
TRAVEL SPEED - FEET PER HOUR
INCHES DEPTH OF APPLICATION
Hours for Full Run:
