Hunter ST Series User manual

ST-1600
OWNER’S MANUAL
ST-1600
Long-Range Synthetic Turf Rotor

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RESIDENTIAL & COMMERCIAL IRRIGATION |Built on Innovation®
Overview
Installation
• With a maximum radius of 165'
(50 m), the ST-1600 rotor is designed
for placement outside the eld for
safety and serviceability.
• Pair the rotor with the ST vault
system to bring all irrigation
components together inside one
strong enclosure for simple access
to the complete system.
Important
The water may contain foreign
objects such as sand, rocks, and other
impurities, which can damage the rotor.
To avoid these problems, you may need
to install a lter.
Aer Installation
Troubleshooting non-rotation aer
installation:
1. Check for plugged secondary nozzle.
2. Check for a blocked propeller in the
turbine assembly.
hunter.direct/st1600help [phone]
Troubleshooting
Find other helpful information about your product, including installation tips and more.
ST-1600-HS-B: Pop-Up Gear Drive
The best-in-class Hunter ST-1600-HS-B gear-driven rotor oers a premium solution for synthetic
turf irrigation. The rotor cools, cleans, and ushes synthetic sports elds to enhance eld safety
and playability. With a throwing radius up to 165' (50 m), the powerful and reliable ST-1600-HS-B
rotor oers years of solid performance in a range of applications.
ST-1600-HS-BR: Riser-Mounted Gear Drive
The riser-mounted ST-1600-HS-BR conguration is an ideal retrot option for synthetic turf
irrigation. It is also an eective dust-control solution for horse arenas, corrals, and pastures.
Caution
• Do not perform any adjustments or
controls during operation.
• Stand clear of the rotor's water jet
and area of operation.
• Ensure the water jet is not directed
toward persons, animals, power
lines, roads, or other objects.
Key Benets
• Heavy-duty internal gear drive and
stainless steel pop-up riser provide
years of reliable operation
• Long-range performance exibility
up to 165' (50 m) with six nozzle
choices
• Full-circle and adjustable arc in one
model from 40° to 360°
• Adjustable speed of rotation using
the adjustment knob to set the
speed to your requirements
Factory Settings
• Preinstalled #20 nozzle; other
nozzles are included in the packaging
• Speed control pre-set for maximum
speed of rotation
• 40° arc setting

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Lower Flange
O-Ring
Stainless
Steel Piston
Product Dimensions:
• Overall height: 22⁄" (57 cm)
• Pop-up height: 5" (13 cm)
• Exposed diameter: 14" (36 cm)
• Inlet size: 2" (50 mm) BSP*
Operating Specications:
• Radius: 107' to 165' (32.5 to 50.3 m)
• Flow: 96.2 to 326.8 GPM (21.0 to 58.8 m3/hr; 350 to 980 l/min)
• Operating pressure range: 60 to 120 PSI (4.0 to 8.0 bar; 400 to 800 kPa)
• Speed of rotation: 80 seconds at 90 PSI (6.0 bar; 600 kPa) in a single 180° sweep
Gearbox
Reversing
Mechanism Boot
Piston Flange
Speed
Control Knob
Turbine Housing
2" (50 mm) BSP Inlet
Secondary Brass
Nozzle
Primary
Nozzle
Arc Adjustment
Rings
Product Details
14" (36 cm)
12" (31 cm)
14"
(36 cm)
5"
(13 cm)
2" (50 mm) BSP
22⁄"
(57 cm)
!
!
*Use P/N 241400SP adapter for 2" (50 mm) PVC pipe if needed.

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RESIDENTIAL & COMMERCIAL IRRIGATION |Built on Innovation®
ITEM DESCRIPTION CATALOG NO.
1 Primary nozzle retainer 502402SP
2 Primary nozzle kit
#16 784800SP
#18 784801SP
#20 784802SP
#22 784803SP
#24 784804SP
#26 784805SP
3 Secondary nozzle kit Female-threaded
nozzle with elbow 10005900SP
Male-threaded
nozzle 10006100SP
4 Speed control knob 510101SP
5 Gearbox cover 502455
6 Turbine assembly kit 10006200SP
7 Reversing kit 510164SP
8 Turret inlet kit 510167SP
9Threaded rotor
inlet 893600SP
10 Arc rings (2) 205617SP
11 Gear-drive assembly 881900SP
12 Rotor cover kit 204205SP
13 Upper body kit 502432SP
14 Riser assembly 502432SP
15 Rubber boot 502423
16 Lower body kit 502442SP
17 Gear-drive insertion/removal tool 517600SP
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ST-1600-HS-B: Replacement Parts

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Servicing and Maintenance
➊
➌
A. Replacing the cover and rotor
1. Remove center plug with a at-
blade screwdriver and unscrew the
nut underneath using a ⁄" (13 mm)
socket.
B. Replacing the propeller and
checking for debris
1. Remove the eight screws on the
turbine housing (six large, two
small).
C. Speed control adjustment
1. Turn the brass knob clockwise to
slow down rotation.
D. Servicing secondary nozzle
1. Unthread the secondary nozzle.
E. Arc adjustment
1. For part-circle operation, reach
inside the rotor to set the arc
adjustment rings to the desired arc
setting.
2. Use the gear-drive insertion/
removal tool to unscrew the rotor
from the piston. The tool will grab
onto the screws below the rotor.
3. Turn the wrench counterclockwise
until the unit is free from the
threads.
4. Li the unit out of the body.
2. Pull to remove the propeller cover
and expose the propeller.
3. Remove the propeller from the
housing to clear any debris that
may be trapped inside.
2. For 360° operation, remove both
adjustment rings.
2. Clear any debris that may be
trapped inside.

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RESIDENTIAL & COMMERCIAL IRRIGATION |Built on Innovation®
Pop-Up System Components
ITEM DESCRIPTION
1ST-1600-HS-B Synthetic turf rotor
2ST-IBS-1600 Rubber cover kit with inll
barrier system
3ST-243636-B Vault
4ST-BKT-1600 Bracket for rotor
5
ST-BVF30-K Manifold, including
3" (80 mm) Victaulic ttings, isolation
valve, drain valve
6ST-V30-KV 3" (80 mm) grooved
Victaulic type low-pressure-loss valve
7ST-SPT-K Adjustable manifold supports
(2 required)
8
ST-H30-K Flexible stainless steel hose,
Victaulic connection to 3" (80 mm)
female NPT
9HQ-5RC Quick coupler 1" (25 mm) inlet
with 1¼" (30 mm) outlet
10 On-o-auto selector (included with
ST-V30-KV)
11 Compacted ground base
The ST-1600-HS-B rotor paired with the ST vault system is the superior solution for all synthetic
turf irrigation needs. The system brings ST irrigation components together inside one strong
underground enclosure that oers simple access from the top for quick servicing and maintenance.
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
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Victaulic is a trademark of Victaulic Company.

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Riser-Mounted System Components
The riser-mounted ST-1600-HS-BR cools and cleans synthetic elds from above. If
riser-mounted irrigation is your choice, protect the riser with padding for safety. This
option is also a great dust-control solution for horse arenas, corrals, and pastures.
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ITEM DESCRIPTION
1ST-1600-HS-BR Riser mount synthetic
turf rotor
2ST-173026-C Vault
3ST-V30-KV 3" (80 mm) grooved
Victaulic type low-pressure-loss valve
4On-o-auto selector (included with
ST-V30-KV)
5 Isolation valve
6 3" (80 mm) PVC pipe
7 3" (80 mm) elbow
83" to 2" (80 mm to 50 mm)
reducer bushing
9 3" (80 mm) schedule 40 steel pipe
10 Protective padding
11 Compacted ground base
Victaulic is a trademark of Victaulic Company.

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RESIDENTIAL & COMMERCIAL IRRIGATION |Built on Innovation®
Field Layouts
American football eld, with a #20 nozzle installed, operating at 100 PSI (7.0 bar; 700 kPa)

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Field Layouts
International soccer pitch, with a #24 nozzle installed, operating at 90 PSI (6.0 bar; 600 kPa)

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RESIDENTIAL & COMMERCIAL IRRIGATION |Built on Innovation®
ST1600 PERFORMANCE DATA IMPERIAL
Nozzle Pressure Radius Flow Precipitation in/hr*
PSI . GPM
16 60 107 96.2 1.63 1.88
70 115 107. 3 1.57 1.81
90 121 1 17. 8 1.54 1.78
100 128 127.3 1.50 1.73
115 135 137. 4 1.46 1.69
18 60 112 1 07.0 1.66 1.91
70 121 119.4 1.56 1.80
90 128 131.0 1.54 1.78
100 133 141.3 1.54 1.78
115 141 153.2 1.48 1.71
20
(Factory installed)
60 115 144.0 2.10 2.43
70 128 160.9 1.89 2.18
90 141 176.5 1.71 1.97
100 144 190.5 1.76 2.03
115 148 204.2 1.80 2.08
22 60 118 171.5 2.37 2.73
70 130 191.8 2.20 2.54
90 144 210.0 1.94 2.24
100 151 226.9 1.84 2.12
115 157 243.1 1.89 2.18
24 60 121 202.1 2.64 3.05
70 133 225.9 2.46 2.84
90 148 247.6 2.19 2.52
100 156 2 6 7.4 2.12 2.45
115 160 286.4 2.16 2.49
26 60 126 233.2 2.83 3.27
70 136 260.4 2.71 3.13
90 151 284.5 2.40 2.77
100 160 3 07.0 2.31 2.67
115 165 326.8 2.32 2.68
* All precipitation rates calculated for 180° operation. For the precipitation rate of a 360° sprinkler, divide by 2.
25°
26'
135'
141'
148'
157'
160'
165'
107'
112'
115'
118'
121'
126'
Nozzle #16
Nozzle #18
Nozzle #20
Nozzle #22
Nozzle #24
Nozzle #26

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ST1600 PERFORMANCE DATA METRIC
Nozzle Pressure Radius Flow Precipitation mm/hr*
Bar kPa m m3/hr l/min
16 4.0 400 32.5 21.8 364 41.4 47.8
5.0 500 35.0 24.4 406 39.8 45.9
6.0 600 37.0 26.8 446 39.1 45.1
7.0 700 39.0 28.9 482 38.0 43.9
8.0 800 41.0 31.2 520 37.1 42.9
18 4.0 400 34.0 24.3 405 42.0 48.6
5.0 500 37.0 27.1 452 39.6 45.8
6.0 600 39.0 29.8 496 39.1 45.2
7.0 700 40.5 32.1 535 39.1 45.2
8.0 800 43.0 34.8 580 37.6 43.5
20
(Factory installed)
4.0 400 35.0 32.7 545 53.4 61.7
5.0 500 39.0 36.5 609 48.1 55.5
6.0 600 43.0 40.1 668 43.4 50.1
7.0 700 44.0 43.3 721 44.7 51.6
8.0 800 45.0 46.4 773 45.8 52.9
22 4.0 400 36.0 38.9 649 60.1 69.4
5.0 500 39.5 43.6 726 55.8 64.5
6.0 600 44.0 47.7 795 49.3 56.9
7.0 700 47.0 51.5 859 46.7 53.9
8.0 800 48.0 55.2 920 47.9 55.3
24 4.0 400 37.0 45.9 765 6 7.1 7 7. 4
5.0 500 40.5 51.3 855 62.6 72.2
6.0 600 45.0 56.2 937 55.5 64.1
7.0 700 47. 5 60.7 1012 53.8 62.2
8.0 800 48.7 65.0 1084 54.9 63.3
26 4.0 400 38.4 53.0 883 71.8 82.9
5.0 500 41.4 59.2 986 68.8 79.5
6.0 600 46.0 64.6 1077 61.0 70.4
7.0 700 48.7 69.7 1162 58.6 67.7
8.0 800 50.3 74.2 1237 58.7 67. 8
* All precipitation rates calculated for 180° operation. For the precipitation rate of a 360° sprinkler, divide by 2.
25°
8 m
41 m
43 m
45 m
47 m
49 m
50 m
32 m
34 m
35 m
36 m
37 m
38 m
Nozzle #16
Nozzle #18
Nozzle #20
Nozzle #22
Nozzle #24
Nozzle #26

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