Hunter Institutional Series User manual

Hunter Industries Incorporated • The Irrigation Innovators © 2004 Hunter Industries Incorporated
1940 Diamond Street • San Marcos, California 92069 P/N 700144 LIT-144 1/04
www.HunterIndustries.com
Institutional Series™ I-40/41/42/43 Gear-Driven Sprinklers
ARC ADJUSTMENTS
All I-40/41 group adjustable heads are preset to
approximately 180°. Sprinklers may be adjusted
with water on or off. It is recommended that initial
adjustment be made before installation.
1. Using the palm of your hand, rotate the
nozzle turret counterclockwise to left stop to
complete any interrupted rotation cycle.
(Fig. 1).
2. Rotate the nozzle turret clockwise to right
stop. This is the xed side of the arc. The
nozzle turret must be held in this position for
all arc adjustments.
To Increase Arc
1. Insert the key end of the Hunter wrench into
the adjustment socket (Figs. 2 & 3).
2. While holding the nozzle turret at the right
stop, turn the wrench clockwise. Each 360°
turn of the wrench increases the arc 45°.
3. Adjust to any arc between 40° and 360°.
4. Wrench will stop turning, or there will be a
ratcheting noise, when the maximum arc
(360°) is reached.
To Decrease Arc
1. Insert the key end of the Hunter wrench into
the adjustment socket (Figs. 2 & 3).
2. While holding the nozzle turret at the right
stop, turn the wrench counterclockwise.
Each 360° turn of the wrench decreases
the arc 45°.
3. Adjust to any arc between 40° and 360°.
4. Wrench will stop turning, or there will be
a ratcheting noise, when the minimum arc
(40°) is reached.
®
Fig. 1 Fig. 2
Radius Adjustment
Insert the hex end of the Hunter wrench into the
nozzle-retainer/range-adjustment screw (Figs.
2 & 3). Turn the screw clockwise into the stream
of water to decrease the radius, or counter-
clockwise to increase the radius.
Precipitation Rate Adjustment
Where excessively wet or dry areas are a
problem, the precipitation rate may be adjusted.
Simply replace the existing nozzle with a larger
one to increase, or a smaller one to decrease
the rate of precipitation.
Nozzle Installation
1. Insert the key end of the Hunter wrench
into the lifting socket of a pop-up sprinkler.
Pull the riser up to gain access to the
nozzle socket.
2. Using the Hunter wrench, loosen the nozzle-
retainer/range-adjustment screw. If a nozzle
is already installed in the sprinkler, it may
now be removed by briey turning on
the water.
3. Discard nozzle if removed with pliers.
Slip the desired nozzle into the nozzle
socket. Note that the socket is angled up
25° (see Fig. 4). Tighten the nozzle-retainer/
range-adjustment screw.
Nozzle
Retainer/
Range
Adjustment
Screw
Arc Adjustment
Socket
Fig. 3
Lift Up
Socket
Indicates
VStat®
Self-
Adjusting
Stator
Recess
for Nozzle
ID Button
Specific
Model
36S
43
I40
V
®
I-40
ADS
Fig. 4
Water
flow
Arc Adjustment
Direction

I-40 Nozzle Performance Data
Pressure Radius Flow Precip in/hr
Nozzle PSI ft. GPM
40
40
50
60
45'
46'
46'
7.0
8.0
8.5
0.67
0.73
0.77
0.77
0.84
0.89
41
50
60
70
80
50'
51'
52'
53'
10.2
11.1
12.1
13.0
0.79
0.82
0.86
0.89
0.91
0.95
0.99
1.03
42
50
60
70
80
51'
53'
55'
56'
11.0
12.3
13.1
13.9
0.81
0.84
0.83
0.85
0.94
0.97
0.96
0.99
43
50
60
70
80
56'
57'
59'
61'
13.5
15.1
16.1
17.5
0.83
0.89
0.89
0.91
0.96
1.03
1.03
1.05
44
60
70
80
90
63'
65'
66'
67'
20.0
21.8
23.4
24.9
0.97
0.99
1.03
1.07
1.12
1.15
1.19
1.23
45
60
70
80
90
66'
68'
69'
70'
22.7
24.7
26.4
28.2
1.00
1.03
1.07
1.11
1.16
1.19
1.23
1.28
Note: All precipitation rates are calculated for 180 degree operation.
For the precipitation rate for a 360 degree sprinkler, divide by 2.
I-41 Nozzle Performance Data – Metric
Nozzle
Pressure
Bars kPa
Radius
m
Flow
m3/hr l/min
Precip mm/hr
40
2.8
3.4
4.1
275
344
413
13.7
14.0
14.0
1.59
1.82
1.93
26.5
30.3
32.2
17
18
20
20
21
23
41
3.4
4.1
4.8
5.5
344
413
482
551
15.2
15.5
15.8
16.2
2.32
2.52
2.75
2.95
38.6
42.0
45.8
49.2
20
21
22
23
23
24
25
26
42
3.4
4.1
4.8
5.5
344
413
482
551
15.5
16.2
16.8
17.1
2.50
2.79
2.98
3.16
41.6
46.6
49.6
52.6
21
21
21
22
24
25
24
25
43
3.4
4.1
4.8
5.5
344
413
482
551
17.1
17.4
18.0
18.6
3.07
3.43
3.66
3.97
51.1
57.2
60.9
66.2
21
23
23
23
24
26
26
27
44
4.1
4.8
5.5
6.2
413
482
551
620
19.2
19.8
20.1
20.4
4.54
4.95
5.31
5.66
75.7
82.5
88.6
94.2
25
25
26
27
28
29
30
31
45
4.1
4.8
5.5
6.2
413
482
551
620
20.1
20.7
21.0
21.3
5.16
5.61
6.00
6.40
85.9
93.5
99.9
106.7
25
26
27
28
29
30
31
32
Note: All precipitation rates are calculated for 180 degree operation.
For the precipitation rate for a 360 degree sprinkler, divide by 2.
I-42 Nozzle Performance Data
Pressure Radius Flow Precip in/hr
Nozzle PSI ft. GPM
40
40
50
60
41'
42'
42'
7.0
8.0
8.5
0.80
0.87
0.93
0.93
1.01
1.07
41
50
60
70
80
44'
44'
45'
46'
10.2
11.1
12.1
13.0
1.01
1.10
1.15
1.18
1.17
1.27
1.33
1.37
42
50
60
70
80
46'
47'
49'
50'
11.0
12.3
13.1
13.9
1.00
1.07
1.05
1.07
1.16
1.24
1.21
1.24
43
50
60
70
80
51'
52'
52'
53'
13.5
15.1
16.1
17.5
1.00
1.07
1.15
1.20
1.15
1.24
1.32
1.38
44
60
70
80
90
58'
58'
60'
60'
20.0
21.8
23.4
24.9
1.14
1.25
1.25
1.33
1.32
1.44
1.44
1.54
45
60
70
80
90
60'
62'
64'
65'
22.7
24.7
26.4
28.2
1.21
1.24
1.24
1.28
1.40
1.43
1.43
1.48
Note: All precipitation rates are calculated for 180 degree operation.
For the precipitation rate for a 360 degree sprinkler, divide by 2.
I-43 Nozzle Performance Data – Metric
Nozzle
Pressure
Bars kPa
Radius
m
Flow
m3/hr l/min
Precip mm/hr
40
2.8
3.4
4.1
275
344
413
12.5
12.8
12.8
1.59
1.82
1.93
26.5
30.3
32.2
20
22
24
24
26
27
41
3.4
4.1
4.8
5.5
344
413
482
551
13.4
13.4
13.7
14.0
2.32
2.52
2.75
2.95
38.6
42.0
45.8
49.2
26
28
29
30
30
32
34
35
42
3.4
4.1
4.8
5.5
344
413
482
551
14.0
14.3
14.9
15.2
2.50
2.79
2.98
3.16
41.6
46.6
49.6
52.6
25
27
27
27
29
31
31
31
43
3.4
4.1
4.8
5.5
344
413
482
551
15.5
15.9
15.9
16.2
3.07
3.43
3.66
3.97
51.1
57.2
60.9
66.2
25
27
29
30
29
32
34
35
44
4.1
4.8
5.5
6.2
413
482
551
620
17.7
17.7
18.3
18.3
4.54
4.95
5.31
5.66
75.7
82.5
88.6
94.2
29
32
32
34
34
37
37
39
45
4.1
4.8
5.5
6.2
413
482
551
620
18.3
18.9
19.5
19.8
5.16
5.61
6.00
6.40
85.9
93.5
99.9
106.7
31
31
32
33
36
36
36
38
Note: All precipitation rates are calculated for 180 degree operation.
For the precipitation rate for a 360 degree sprinkler, divide by 2.
Each nozzle can be identified by
the number of raised ridges on the
inside surface of the nozzle.
Example: 2 ridges = # 42 nozzle
I-40/41 = 3 minutes (approx.)
I-42/43 = 1 minute (approx.)
CORRECT INSTALLATION
Each nozzle can be identified by
the number of raised ridges on the
inside surface of the nozzle.
Example: 2 ridges = # 42 nozzle
I-40/41 = 3 minutes (approx.)
I-42/43 = 1 minute (approx.)
IDENTIFYING
NOZZLE NUMBERS
Each nozzle can be identified by
the number of raised ridges on the
inside surface of the nozzle.
Example: 2 ridges = # 42 nozzle
I-40/41 = 3 minutes (approx.)
I-42/43 = 1 minute (approx.)
FULL CIRCLE
ROTATION SPEED
Data represent test results in zero
wind. Adjust for local conditions.
Radius may be reduced up to 25% with
adjustment screw (this may alter the
uniformity of the spray pattern).