Hunter PGJ Rotor User manual

PGJ Rotor
An Economical, Mid-Range
Gear-Driven Sprinkler
for Residential and Commercial Sites
P
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PRODUCT INFORMATION

Product Overview ......................................................................................3
Product Features and Benets....................................................................4
Product Performance..................................................................................6
Product Comparisons.................................................................................7
Installation & Maintenance........................................................................8
Technical Information..............................................................................10
Sample Layouts........................................................................................12
TABLE OF CONTENTS
1
PGJ Rotors

PGJ...The Gear-Driven Answer for
Medium-Sized Areas
The PGJ rotor has been developed to ll
the void of the “mid-range” area in todayʼs
landscapes: spacings 18' to 37' (4.6 to
9.1 m)…hard-to-t sites that are too large
for sprays yet too small for traditional
rotary sprinklers. In essence, the PGJ has
been designed as a “PGP junior,” offering
all the features and benets of our top-
selling rotor, for use in small areas.
Offering greater efciency in the appli-
cation of water for slopes, medians and
conned areas, PGJ eliminates wasteful
runoff and puddling often associated with
multiple-row spray head installations.
PGJ...The Ideal Alternative to
Spray Heads
The PGJ can be zoned together with other
Hunter rotors, allowing areas that would
typically use spray heads to be zoned
together with PGP or I-20 rotors.
The PGJ saves installation time and
material costs in narrow areas typically
reserved for sprays. Less trenching, fewer
piping connections, less lawn disruption
are all important labor saving benets.
With the PGJ, more sprinklers can be
connected to the same zone, reducing the
number of valves and controller stations.
PGJ...The Special Features
Customers Require
With a wide range of pop-up heights, the
PGJ can meet all your needs. The 4" (10
cm) is for normal grass heights, the 6" (15
cm) is ideal for areas with taller grasses or
where mowing is infrequent, and the 12"
(30 cm) is ideal for all higher plant mate-
rial. There is also a shrub model that is
ideally suited for use on a riser.
Hunter has always made it a point to
listen to the comments of those in the eld
when developing new products or enhanc-
ing existing ones. In response to that input,
a key feature of the PGJ is exactly what
so many have been asking for—a protec-
tive rubber cover that combines strength
(to protect the inner workings of the head)
with safety.
One of the hottest PGJ features is a
radius adjustment screw with a hex
socket and straight slot that allows for
quick and precise ne tuning of the spray,
keeping water away from surrounding
buildings, walkways and hardscapes.
PRODUCT OVERVIEW
The PGJ has the proven reliability of its
“big brother” along with the easy to adjust
arc, ranging from 40° to 360°, wet or dry,
popped up or down!
PGJ...The answer to your needs for a
small economical rotor for your residential
and commercial landscape and turf
applications.
1
PGJ Rotors

Nozzles Fashioned After Those of PGP
Same great features, but crafted for
smaller coverage
The full range of PGJ nozzles
come on a convenient rack just
like the ones for PGP. They also
feature the same basic design,
making them easy to install and
remove. And theyʼre also large,
making it easy to determine the
ow rate. But, make no mistake,
PGJ nozzles have been spe-
cically created to handle the
particular needs of the smaller areas for
which PGJ was made.
Radius Adjustment
Adjust the radius and ne tune the stream
of water with a quick and easy radius
adjustment screw
Using the convenient Hunter wrench or
either a hex or straight slot screwdriver,
nozzle radius can be reduced up to 25%.
The radius adjustment screw doubles as a
positive means of retaining the sprinkler
nozzle, making nozzle installation fool-
proof.
Pull-up Socket
Simplies nozzle installation and removal
The PGJ is the only mid-range rotor that
has a pull-up socket, making it easy to
access the nozzle.
Protective Rubber Cover
Keeps debris out and keep play areas safe
Just like the PGP, the PGJ rotor includes
an integral rubber cover that won't come
off. The cover serves a dual purpose, being
solid enough to protect the internal adjust-
ment mechanism and forgiving enough
to provide safety to those may come in
contact with it on the eld of play.
Compact Body and Small Exposed
Surface Area
1 " (3 cm)–out of sight, out of mind!
The PGJʼs small exposed diameter hides
from small children and vandals. It wonʼt
detract from the beauty of the landscape.
40°-360° Adjustable Arc
Easily adjusts from the top of
the sprinkler—up or down, wet
or dry
For fast and efcient arc adjust-
ments, the PGJʼs versatility
allows you to put the water
where you want it, without get-
ting areas wet that should stay
dry. Easily ne-tune the precise
setting you need with the same 4:1 ratio as
the PGP.
Plus (+) and Minus (–) Symbols
Show the way for quick arc adjustment
The plus and minus symbols, on top of the
sprinkler, make arc adjustments easy to
understand.
Proven Reversing Mechanism
The industryʼs best for reliable directional
change
The three spring reversing mechanism has
given us the consistent directional change
that reliable operation requires!
Single Thread Body Cap
Extra strong, yet easy to service when
necessary
The single thread body cap and body top
PRODUCT FEATURES
AND BENEFITS
23
PGJ Rotors
Radius Reduction Screw
®
PGJ
V
M
A
D
E
I
N
U
S
A
Plus+ Minus-- Arc Adjustment
Pull-up
Socket
Radius Reduction Screw
®
PGJ
V
M
A
D
E
I
N
U
S
A
Plus+ Minus-- Arc Adjustment
Pull-up
Socket

withstand burst pressures in excess of 200
PSI (13.8 bars; 1379 kPa). It also allows
for fast and easy servicing, if necessary, of
the super large lter screen.
Proven Gear Drive
Matches the superior reliability of
time-tested PGP drives
The PGJ is in essence a two-thirds scale
version of our proven PGP rotor. It uses
the same continuously improved gear
drive design rst introduced over ten years
ago, ensuring reliable operation.
Super Strong Retraction Spring
Provides positive retraction every time!
The PGJʼs spring is stronger than any of
our competitorsʼ.
Variable Stator
Keeps rotation speed consistent regardless
of nozzle size or pressure
With the variable stator design there is no
need to adjust or change the stator “bypass
setting” on the PGJ. Now even better
than ever, the variable stator is more dirt
tolerant, providing years of reliability. No
matter what nozzle or variable pressure
you may have, there will always be a con-
stant rotation speed of the sprinkler across
a wide range of pressures.
Heavy Duty Riser Seal
Stops wasteful excess “ow-by”
Hunter has taken the time-proven design
of the PGP riser seal and used that as the
inspiration to craft one specically for the
PGJ. As the sprinkler pops up, the PGJʼs
large sealing surface prevents wasteful
ow-by. And, when itʼs retracted, it keeps
debris from entering the seal.
Extra Large Screen
3 times the size of our leading competitorʼs
The huge screen with 30 mesh size can
catch a large amount of debris, maintain-
ing sprinkler operation and preventing
nozzle clogging.
Drain Check Valve
Saves water, reduces liability
The drain check valve feature is optional
in all pop-up models. The check valve will
hold back water pressure from up to 7'
(2.1 m) of elevation change. A “V” on the
rubber cover indicates that a drain check
valve has been factory installed.
Swing Joint*
For easy installations and retrots
A timesaving, versatile, heavy-duty swing
joint to get the sprinkler height and posi-
tion just right in mere seconds. It allows
for use of a check valve on 6" (15 cm) and
12" (30 cm) models (a side inlet access
wonʼt allow a check valve to work, but a
bottom inlet access, with the addition of a
swing joint, allows the
check valve to function
and give the user “side-
inlet” versatility). The
swing joint has swivel
ells on both ends for
added versatility.
Install the swing joint
vertically or horizon-
tally with a twist of
the wrist. The swing
joint also protects lateral piping from
downward forces exerted on the sprinkler
by heavy equipment, providing a reliable,
exible connection.
Reclaimed Water Versions
Easy identication when using reclaimed
water for irrigation
Purple is the recognized color for irriga-
tion components using reclaimed water.
The PGJ can be ordered with a purple
rubber cover permanently attached so it
will meet the needs of identication stan-
dards. The drain check valve is standard
on all reclaimed water versions.
*Purchased separately
23
PGJ Rotors

Trajectories
The nozzle trajectory is approximately 18
degrees. This is high enough to reach the
proper radius without being so high that it
is affected in windy conditions.
The PGJʼs interchangeable nozzles pro-
vide a wide and versatile range from the
optimum performance is based upon 40
PSI (2.8 bars; 275 kPa), dynamic operat-
ing pressure.
The average precipitation rate is
approximately .60" per hour (15 mm/hr)
for a 180° arc sprinkler. The actual pre-
cipitation rate may vary, and should be
calculated.
PRODUCT
PERFORMANCE
PGJ Nozzle Performance Data
Pressure Radius Flow Precip in/hr
Nozzle PSI ft. GPM
.75
30
40
50
15'
16'
17'
0.64
0.75
0.85
0.55
0.56
0.57
0.63
0.65
0.65
1.0
30
40
50
18'
19'
19'
0.85
1.0
1.1
0.51
0.53
0.59
0.58
0.62
0.68
1.5
30
40
50
21'
22'
22'
1.3
1.5
1.7
0.57
0.60
0.68
0.66
0.69
0.78
2.0
30
40
50
24'
25'
25'
1.7
2.0
2.3
0.57
0.62
0.71
0.66
0.71
0.82
2.5
30
40
50
27'
28'
28'
2.2
2.5
2.8
0.58
0.61
0.69
0.67
0.71
0.79
3.0
30
40
50
30'
31'
31'
2.5
3.0
3.4
0.53
0.60
0.68
0.62
0.69
0.79
4.0
30
40
50
33'
34'
34'
3.7
4.0
4.3
0.65
0.67
0.72
0.76
0.77
0.83
5.0
30
40
50
36'
37'
37'
4.7
5.0
5.3
0.70
0.70
0.75
0.81
0.81
0.86
Note: All precipitation rates calculated for 180 degree operation.
For the precipitation rate for a 360 degree sprinkler, divide by 2.
PGJ Nozzle Performance Data – Metric
Pressure Radius Flow Precip mm/hr
Nozzle Bars kPa m m3/hr l/min
.75
2.1
2.8
3.4
206
275
344
4.6
4.9
5.2
0.15
0.17
0.19
2.4
2.8
3.2
14
14
14
16
17
17
1.0
2.1
2.8
3.4
206
275
344
5.5
5.8
5.8
0.19
0.23
0.25
3.2
3.8
4.2
13
14
15
15
16
17
1.5
2.1
2.8
3.4
206
275
344
6.4
6.7
6.7
0.30
0.34
0.39
4.9
5.7
6.4
14
15
17
17
18
20
2.0
2.1
2.8
3.4
206
275
344
7.3
7.6
7.6
0.39
0.45
0.52
6.4
7.6
8.7
14
16
18
17
18
21
2.5
2.1
2.8
3.4
206
275
344
8.2
8.5
8.5
0.50
0.57
0.64
8.3
9.5
10.6
15
16
18
17
18
20
3.0
2.1
2.8
3.4
206
275
344
9.1
9.4
9.4
0.57
0.68
0.77
9.5
11.4
12.9
14
15
17
16
18
20
4.0
2.1
2.8
3.4
206
275
344
10.1
10.4
10.4
0.84
0.91
0.98
14.0
15.1
16.3
17
17
18
19
20
21
5.0
2.1
2.8
3.4
206
275
344
11.0
11.3
11.3
1.07
1.14
1.20
17.8
18.9
20.1
18
18
19
21
21
22
Note: All precipitation rates calculated for 180 degree operation.
For the precipitation rate of a 360 degree sprinkler, divide by 2.
®
I-40
ADS
45
PGJ Rotors
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). Optimum performance is at 40
PSI (2.8 bars/275 kPa). For information on testing standards and precipitation rate calculations, see Hunter
Irrigation Products catalog.

PRODUCT
COMPARISONS
45
PGJ Rotors
SPECIFICATION GUIDE
EXAMPLE: PGJ - 06 - V
MODEL
PGJ
POP-UP HEIGHT
00 = Shrub
04 = 4" Pop-up
06 = 6" Pop-up
12 = 12" Pop-up
OPTIONS
R = Reclaimed Water Identi er
V = Factory-Installed Drain Check Valve
(Pop-up Models Only)
300 Stream Rotor
FEATURES Hunter PGJ Rotor Rainbird 3500 Toro 300 Rotor Nelson 5500 Rotor
Pull-up Socket

Full & Part Circle in 1 Unit
 


Adjustable Arc…Wet or Dry, Up or Down 40°-360° 40°-360°Discs 0 40°-36 °
+
and
-
Symbols for Easier Arc Adjustment

Fast, Easy Interchangeable Nozzles
  

Nozzles Packed in Box
 

Rubber Cover

Reliable 3-Spring Reverser Mechanism

Exposed Diameter
Easy Servicing Body Cap
Radius Adjustment
Extra Large Filter Screen
Optional Drain Check Valve
Optional Reclaimed Water Versions
11/4" (3 cm) 11/4" (3 cm) 3" (8 cm) 17/8" (5 cm)

  Optional


  
   
WARRANTY
Hassle-free, 2-year, non-prorated
3-year conditional 2- year conditional 5-year conditional
Available in Shrub, 4", 6", 12" Pop-up

®
®
®
®
300 Stream Rotor
Nozzle Replacement Guide
To Replace: Rainbird 3500
Use PGJ Nozzle
To Replace: Toro 300 Series
Use PGJ Nozzle
.75 .75 304-XX-01 .75
11.0 308-XX-01 1.5
1.5 1.5 316-XX-01 2.5
22.0 304-XX-02 .75
33.0
44.0
308-XX-02 2.0
316-XX-02 3.0
To Replace: Nelson Pro 5500
Use PGJ Nozzle 304-XX-03 1.5
#51 .75 308-XX-03 3.0
#52 1.5 To Replace: Toro XP300 Series
Use PGJ Nozzle
#53 2.0 XP300-XX-Q-05 1.0
#54 3.0 XP300-XX-H-05 2.0
®
®
®
®

The PGJ pop-up sprinkler should be
installed at nish grade as shown in the
illustration.
Arc Adjustment
Installation Height
1. Rotate the nozzle turret counterclock-
wise to the left stop.
2. Now, rotate the nozzle turret clockwise
to the right stop. This is the xed side
of the arc. The nozzle turret must be
held in this position for all arc adjust-
ments.
To increase arc:
1. Insert the key end of the Hunter wrench
into the adjustment socket on top of the
sprinkler.
2. While holding the nozzle turret at the
right stop, turn the wrench clockwise.
3. The wrench will stop turning when
adjusted to the maximum arc (360°).
Do not go past this stop.
4. Adjust to any arc between 40°-360°.
To decrease arc:
1. Insert the key end of the Hunter wrench
into the adjustment socket.
2. While holding the nozzle turret at the
right stop, turn the wrench counter-
clockwise.
3. The wrench will stop turning when
adjusted to the minimum arc (40°).
Do not go past this stop.
4. Adjust to any arc between 40°-360°.
Radius Adjustment
To decrease radius:
1. Turn nozzle-retainer/radius-adjustment
screw clockwise.
2. If smaller radius is desired install
smaller nozzle. This will affect precipi-
tation rate.
To increase radius:
1. Turn nozzle-retainer/radius-adjustment
screw counterclockwise.
2. If larger radius is desired, install larger
nozzle. This will affect precipitation
rate.
Precipitation Rate Adjustment
To increase precipitation:
1. Remove existing nozzle.
2. Replace with larger size.
3. Adjust radius.
To decrease precipitation:
1. Remove existing nozzle.
2. Replace with smaller size.
3. Adjust radius.
Radius Reduction Screw
®
PGJ
V
M
A
D
E
I
N
U
S
A
Plus+ Minus-- Arc Adjustment
Pull-up
Socket
Radius Reduction Screw
®
PGJ
V
M
A
D
E
I
N
U
S
A
Plus+ Minus-- Arc Adjustment
Pull-up
Socket
67
PGJ Rotors
INSTALLATION &
MAINTENANCE

Nozzle Removal & Insertion
Nozzle Installation
1. Insert the plastic key end of the Hunter
wrench into the lifting socket of the
sprinkler and turn 90°. Pull the riser up
to gain access to the nozzle socket.
2. Using the hex key of the Hunter
wrench, turn the radius adjustment
screw counterclockwise to be sure it is
not blocking the nozzle socket opening.
If a nozzle is already installed, it can be
removed by backing out the adjustment
screw and turning on the water, or by
prying outward under the nozzle.
3. Slip the desired nozzle into the nozzle
socket. Note that the socket is angled
up 25° so that the nozzle range screw
threads directly down. Then tighten the
nozzle range screw. The arrow on the
rubber cover will always indicate the
location of the nozzle and direction of
the water ow when the sprinkler is
retracted.
Note: Undamaged nozzles are reusable.
Nozzle sets are also recyclable.
Cleaning the Filter Screen
Unscrew body cap and remove internal
riser.
1. If sprinkler has drain check valve,
remove with needle nose pliers.
2. With needle nose pliers, grasp large rib
(Fig. 3) on the inside of the screen and
pull rmly to remove screen.
3. Note the position of the large rib in
comparison to the date code, which is
located on the bottom of the riser.
Fig.1
Fig.2
Large
Rib
Fig.3
Date Code
0401
67
PGJ Rotors

PGJ-SHRUB
®
MODEL PGJ-00
GEARED ROTOR
FINISH GRADE
PVC TEE
PVC LATERAL LINE
1/2" PVC RISER
(LENGTH AS REQUIRED)
TECHNICAL
INFORMATION
Installation Details
PGJ-04
®
MODEL PGJ-04
GEARED ROTOR
FINISH GRADE
PVC TEE
PVC LATERAL LINE
1/2" SCH 80 NIPPLE
(LENGTH AS REQUIRED)
1/2" STREET ELL
1/2" STREET ELLS
8
9
PGJ Rotors

PGJ-12
®
MODEL PGJ-12
GEARED ROTOR
FINISH GRADE
PVC TEE
PVC LATERAL LINE
HUNTER SWING JOINT
PGJ-06
®
MODEL PGJ-06
GEARED ROTOR
FINISH GRADE
PVC TEE
PVC LATERAL LINE
HUNTER SWING JOINT
8
9
PGJ Rotors

SAMPLE LAYOUTS
3-Row Spray Head System versus PGJ Rotor 2-Row System
Typically, in long and narrow landscapes, three rows of spray heads have been installed to
irrigate the areas. Now, with the PGJ, two rows can irrigate the same area, more efciently,
while saving dollars on piping, valves, stations on the controller, trenching, labor and most
importantly, water use!
PS 3-Row Spray System
Zone #1=18.8 GPM (4.27 m3/hr; 71.17 l/min)
Zone #2=15.8 GPM (3.59 m3/hr; 59.81 l/min)
.... PS 04 12A 90° .8 GPM (0.18 m3/hr; 3.0 l/min)
.. PS 04 12A 180° 1.3 GPM (0.30 m3/hr; 4.9 l/min)
.. PS 04 12A 360° 2.2 GPM (0.50 m3/hr; 8.3 l/min)
PGJ 2-Row Rotor System
Saves installation time and labor,
and reduces material costs.
Zone #1=16 GPM
.... PGJ 04 90° #1.0 1.0 GPM (0.23 m3/hr; 3.8 l/min)
.. PGJ 04 180° #2.0 2.0 GPM (0.45 m3/hr; 7.6 l/min)
96.25 x 34.6 gpm (total gpm for area)
1932 sq. ft. (23' x 84' = total area) = 1.72"/hr
96.25 x 16 gpm (total gpm for area)
1932 sq. ft. (23' x 84' = total area) = .80"/hr
PS Spray 3-Row System Precipitation Rate:
PGJ 2-Row Rotor System Precipitation Rate:
130.9 l/min x 60
179.5 m2 (7.0 m x 25.6 m = total area) = 44 mm/hr
7.85 m3/hr x 1000
179.5 m2 (7.0 m x 25.6 m = total area) = 44 mm/hr
60.6 l/min x 60
179.5 m2 (7.0 m x 25.6 m = total area) = 20 mm/hr
3.63 m3/hr x 1000
179.5 m2 (7.0 m x 25.6 m = total area) = 20 mm/hr
96.25 x 34.6 gpm (total gpm for area)
1932 sq. ft. (23' x 84' = total area) = 1.72"/hr
96.25 x 16 gpm (total gpm for area)
1932 sq. ft. (23' x 84' = total area) = .80"/hr
PS Spray 3-Row System Precipitation Rate:
PGJ 2-Row Rotor System Precipitation Rate:
130.9 l/min x 60
179.5 m2 (7.0 m x 25.6 m = total area) = 44 mm/hr
7.85 m3/hr x 1000
179.5 m2 (7.0 m x 25.6 m = total area) = 44 mm/hr
60.6 l/min x 60
179.5 m2 (7.0 m x 25.6 m = total area) = 20 mm/hr
3.63 m3/hr x 1000
179.5 m2 (7.0 m x 25.6 m = total area) = 20 mm/hr
#1 #2
23'
(7.0 m)
84'
(25.6 m)
#1
23'
(7.0 m)
84'
(25.6 m)
10
11
PGJ Rotors

Use PGJ on the Same Zone with Other Rotors
Now, when landscapes require smaller areas to be irrigated together with larger areas, the
PGJ and PGP rotors can be combined on one zone! As shown in this design, one valve can
control both the smaller area and the larger area and provide a uniform precipitation rate
over the entire landscape. Normally, two valves would have to be installed: one for a spray
zone and one for a rotor zone. So, less valves, piping, wire, and stations on the controller are
required!
20' (6.1 m)
20'
(6.1 m)
40'
(12.2 m)
40' (12.2 m)
#1
Zone #1=20.8 GPM
.....PGJ-04 #1.0 nozzle 1.0 GPM (0.23 m3/hr; 3.8 l/min)
.....PGP-ADJ #8 nozzle 4.23 GPM (0.96 m3/hr; 16.0 l/min)
34560 x 1.0 gpm
90° x 20' x 20' = .98"/hr with PGJ set at 90° arc
34560 x 4.23 gpm
90° x 40' x 40' = .99"/hr with PGP set at 90° arc
PGJ Precipitation Rate:
(Sprinkler Spacing Method)
PGP Precipitation Rate:
(Sprinkler Spacing Method)
3.8 l/min x 21600
90° x 6.1m x 6.1m = 24 mm/hr with PGJ set at 90° arc
0.23 m3/hr x 360000
90° x 6.1m x 6.1m = 24 mm/hr with PGJ set at 90° arc
16.0 l/min x 21600
90° x 12.2m x 12.2m = 26 mm/hr with PGP set at 90° arc
0.96 m3/hr x 360000
90° x 12.2m x 12.2m = 26 mm/hr with PGP set at 90° arc
10
11
PGJ Rotors

NOTES
12

12

Hunter Industries Incorporated • The Irrigation Innovators
1940 Diamond Street • San Marcos, California 92069 • TEL: [phone] • FAX: [phone] © 2004 Hunter Industries Incorporated
www.HunterIndustries.com P/N 700424 LIT-210 1/04