Hunter Professional PGP Ultra Series

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be removed by backing out the adjustment screw and

turning on the water, or by pulling outward on the nozzle

"ears" with a pair of needle-nosed pliers.

3. Slip the desired nozzle into the nozzle socket (Fig. 7).

Note that the socket is angled up 25˚. The "ears" should

be adjusted so that the nozzle range screw threads

directly down between them. Then tighten the nozzle

range screw. The raised bump with an arrow on the

rubber cover will always indicate the location of the

nozzle and direction of water flow when the sprinkler is

retracted.

ALIGNING THE RIGHT (FIXED) SIDE OF ARC

If the right side of the arc is not properly aligned, the

results may be a wet walkway or a dry turf area. The right

side arc can easily be realigned. One way to realign the

right stop is to turn the whole sprinkler body assembly

and the fitting below it, left or right to the desired position.

This may require temporary removal of the soil around

the sprinkler to allow you to grip the sprinkler housing.

Another way to reset the right arc is to unscrew the body

cap counterclockwise and remove the internal assembly

from the body. Once removed, rotate the nozzle turret

to the right stop, screw the internal assembly back into

the body with the nozzle aligned to the right side of the

area you want irrigated (Fig. 9). At this point you have

realigned the right arc stop, and you can adjust the left

arc to an appropriate setting.

Note: It is not necessary to dig up and remove the whole

sprinkler to realign the right arc.

PGP ULTRA INSTALLATION:

The PGP Ultra pop-up sprinkler should

be installed at finished grade as shown in

the illustration (Fig. 1).

Arc Adjustments:

Adjustable heads are preset to

approximately 180˚. Sprinklers may

be adjusted with water on or off. It is

recommended that initial adjustments be

made before installation.

1. Using the palm of your hand, rotate the

nozzle turret counterclockwise to the left

stop to complete any interrupted rotation

cycle (Fig. 2).

2. Rotate the nozzle turret clockwise to the

right stop. This is the fixed side of the arc.

The nozzle turret must be held in this

position for arc adjustments. The right

stop does not change.

To Increase the Arc:

1. Insert the plastic key end of the Hunter

wrench into the adjustment socket

(Fig. 3 & 4).

2. While holding the nozzle turret at the right stop,

turn the wrench clockwise. Each full 360˚ turn

of the wrench will increase the arc 90˚.

3. Adjust to any arc between 50˚ and 360˚ (Fig. 5).

4. The wrench will stop turning, or there will be a

ratcheting noise, when the maximum arc of 360˚

(full circle) has been reached.

5. When set to 360, the sprinkler will rotate

continually counterclockwise.

To Decrease the Arc:

1. Insert the plastic key end of the Hunter wrench into

the adjustment socket (Fig. 3 & 4).

2. While holding the nozzle turret at the right stop, turn

the wrench counterclockwise. Each full 360˚ turn of

the wrench will decrease the arc 90˚.

3. Adjust to any arc between 50˚ and 360˚ (Fig. 5).

4. The wrench will stop turning, or there will be a

ratcheting noise, when the minimum arc of 50˚ has

been reached.

RADIUS / DISTANCE OF THROW

Insert the steel hex end of the Hunter wrench into the

radius adjustment screw (Fig. 6). Turn the screw

clockwise (into the stream of water) to decrease the

radius, or counterclockwise to increase the radius.

Radius can be reduced up to 25%.

PRECIPITATION RATE ADJUSTMENT

If you have excessively wet or dry areas, you can

change the nozzle in the sprinkler to increase or

decrease the precipitation rate. For dry areas, install a

larger nozzle. For wet areas, install a smaller nozzle.

DRAIN CHECK VALVE

All Hunter sprinklers are available with a factory-

installed drain check valve. The drain check valve

prevents low-head drainage with elevation changes

up to 10'. To order, specify PGP-00-CV or PGP-04-CV.

All PGP-12 sprinklers come standard with a drain

check valve. If a check valve is added to the standard

PGP-04 in the field, the elevation check height will be

approximately 4'.

RECLAIMED ID

All Hunter rotors are available with a purple rubber

cover permanently attached. The purple cover shows

that reclaimed water is being used for the project, which

promotes safety on the job site.

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 (Fig. 8).

2. Using the hex key of the Hunter wrench, turn the radius

adjustment screw (Fig. 6)

counterclockwise to be sure it is not blocking the nozzle

socket opening. If a nozzle is already installed, it can

Gear-Driven Sprinklers

PGP

Ultra Series

Professional Series™

Fig. 4

Decrease Arc

Increase Arc

Plastic Key End

Steel Hex End

Note: It is not necessary to disassemble the sprinkler to make adjustments.

Fig. 7

Nozzle Removal

Post

Fig. 7

Fig. 9

Fig. 4

Minimum

Arc

Maximum

Arc

50°

360°

Fig. 5

Fig. 6

Fig. 3

Model

Nozzle

No.

Pressure

in PSI

Degrees of

Trajectory

Max Height

of Spray

Distance from head

to Max Height

PGP Ultra 1.5 45 25 8' 23'

Blue 2.0 45 25 8' 23'

2.5 45 25 9' 26'

3.0 45 25 10' 28'

4.0 45 25 11' 30'

5.0 45 25 11' 30'

6.0 55 25 12' 32'

8.0 55 25 13' 32'

PGP Ultra

Low Angle

2.0LA 50 13 5' 22'

2.5LA 50 13 4' 22'

3.5LA 50 13 4' 22'

4.5LA 50 13 4' 22'

PGP Ultra

Short Radius

.50 50 15 5' 8'

1.0 50 14 6' 9'

2.0 50 3 1' 6'

PGP Ultra

Short Radius

.75 50 22 7' 13'

1.5 50 18 7' 13'

3.0 50 8 1' 6'

NON-REVERSING 360

This PGP Ultra sprinkler is designed as a part- and

full-circle in one model. When the sprinkler is adjusted

to the full-circle position, the sprinkler will rotate in a

continuous counterclockwise direction. This saves

everyone from stocking additional full-circle only models

while efficiently irrigating the landscapes.

NON-STRIPPABLE BACKDRIVE

This PGP Ultra sprinkler is designed with an internal

device that prevents damage to the internal gear drive

if it should be turned by vandals. This important feature

works when the nozzle turret is turning in either direction.

This makes the sprinkler very durable in all applications.

AUTO ARC RETURN

This PGP Ultra sprinkler is designed with an internal

device that re-aligns the arc if it is turned by vandals.

This important feature works when the nozzle turret is

turning in either direction.

When forced outside of the originally set arc, the

sprinkler takes the

shortest path back to

the pattern without

going completely

around. This saves

the non-irrigated areas

from getting wet! Always

a good thing!

Hunter Industries Incorporated • The Irrigation Innovators

www.hunterindustries.com P/N 700054 LIT-469 2/11

Fig. 1

Fig. 2

Fig. 8

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Summary

PGP Ultra Installation and Adjustments

Arc Adjustments

Adjustable heads are preset to approximately 180°. Sprinklers may be adjusted with water on or off.

Increasing the Arc

Turn the wrench clockwise while holding the nozzle turret at the right stop.

Decreasing the Arc

Turn the wrench counterclockwise while holding the nozzle turret at the right stop.

Radius; Distance of Throw Adjustment

Turn the radius adjustment screw clockwise to decrease radius or counterclockwise to increase.

Precipitation Rate Adjustment

Change the nozzle to increase or decrease precipitation rate for wet or dry areas.

Drain Check Valve

Factory-installed valve prevents low-head drainage with elevation changes up to 10'.

Reclaimed Water Identification

Purple rubber cover indicates reclaimed water is being used for the project.

Nozzle Installation

Insert the plastic key end of the Hunter wrench into the lifting socket and turn 90°.

Aligning the Right Side of Arc

Realign the right arc stop by rotating the sprinkler body or internal assembly.

PGP Ultra Series Features

Non-Reversing 360

Designed as a part- and full-circle in one model, rotating continuously counterclockwise.

Non-Strippable Backdrive

Internal device prevents damage to gear drive if turned by vandals in either direction.

Auto Arc Return

Internal device re-aligns arc if turned by vandals, taking the shortest path back.

The Hunter PGP Ultra Series Gear-Driven Sprinkler is a versatile and durable irrigation device designed for efficient landscape watering. It features a pop-up sprinkler mechanism that should be installed at finished grade for optimal performance.

Function Description:

The PGP Ultra is a gear-driven sprinkler that delivers water in a controlled pattern. It is capable of both part-circle and full-circle operation, making it adaptable to various landscape shapes and sizes. The sprinkler's internal mechanism ensures smooth rotation and consistent water distribution. When set to full-circle, it rotates continuously counterclockwise, eliminating the need for separate full-circle-only models. This design promotes efficient landscape irrigation and simplifies inventory management.

Usage Features:

Arc Adjustments:

The sprinkler heads are factory preset to approximately 180 degrees, but the arc can be easily adjusted with water on or off, though initial adjustments are recommended before installation. To adjust the arc, first rotate the nozzle turret counterclockwise to its left stop to complete any interrupted rotation cycle. Then, rotate the nozzle turret clockwise to the right stop; this is the fixed side of the arc and must be held in this position for arc adjustments. The right stop remains constant.

To increase the arc, insert the plastic key end of the Hunter wrench into the adjustment socket. While holding the nozzle turret at the right stop, turn the wrench clockwise. Each full 360-degree turn of the wrench increases the arc by 90 degrees. The arc can be adjusted anywhere between 50 and 360 degrees. The wrench will stop turning, or a ratcheting noise will be heard, when the maximum arc of 360 degrees (full circle) has been reached. When set to 360 degrees, the sprinkler will rotate continuously counterclockwise.

To decrease the arc, insert the plastic key end of the Hunter wrench into the adjustment socket. While holding the nozzle turret at the right stop, turn the wrench counterclockwise. Each full 360-degree turn of the wrench decreases the arc by 90 degrees. The arc can be adjusted anywhere between 50 and 360 degrees. The wrench will stop turning, or a ratcheting noise will be heard, when the minimum arc of 50 degrees has been reached. It is important to note that it is not necessary to disassemble the sprinkler to make these adjustments.

Aligning the Right (Fixed) Side of Arc:

Proper alignment of the right side of the arc is crucial to avoid wet walkways or dry turf areas. The right side arc can be realigned in a couple of ways. One method is to turn the entire sprinkler body assembly and its underlying fitting, either left or right, to the desired position. This might require temporarily removing soil around the sprinkler to grip the housing.

Another method involves unscrewing the body cap counterclockwise and removing the internal assembly. Once removed, rotate the nozzle turret to the right stop. Then, screw the internal assembly back into the body, aligning the nozzle with the right side of the area to be irrigated. This process realigns the right arc stop, allowing for subsequent adjustment of the left arc. It is not necessary to dig up and remove the entire sprinkler to realign the right arc.

Radius / Distance of Throw:

To adjust the radius or distance of throw, insert the steel hex end of the Hunter wrench into the radius adjustment screw. Turning the screw clockwise (into the stream of water) will decrease the radius, while turning it counterclockwise will increase the radius. The radius can be reduced by up to 25%.

Precipitation Rate Adjustment:

If areas are excessively wet or dry, the precipitation rate can be adjusted by changing the nozzle. For dry areas, install a larger nozzle; for wet areas, install a smaller nozzle.

Nozzle Installation:

To install a nozzle, first insert the plastic key end of the Hunter wrench into the lifting socket of the sprinkler and turn it 90 degrees. Pull the riser up to access the nozzle socket. Using the hex key of the Hunter wrench, turn the radius adjustment screw counterclockwise to ensure 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 pulling outward on the nozzle "ears" with a pair of needle-nosed pliers. Slip the desired nozzle into the nozzle socket, noting that the socket is angled up 25 degrees. The "ears" should be adjusted so that the nozzle range screw threads directly down between them. Then, tighten the nozzle range screw. A raised bump with an arrow on the rubber cover always indicates the location of the nozzle and the direction of water flow when the sprinkler is retracted.

Non-Reversing 360:

This PGP Ultra sprinkler is designed to function as both a part- and full-circle model. When adjusted to the full-circle position, the sprinkler rotates continuously counterclockwise. This feature eliminates the need to stock separate full-circle-only models, promoting efficient landscape irrigation.

Non-Strippable Backdrive:

The PGP Ultra sprinkler includes an internal device that prevents damage to the internal gear drive if it is turned by vandals. This important feature works regardless of the nozzle turret's turning direction, making the sprinkler highly durable in all applications.

Auto Arc Return:

This PGP Ultra sprinkler is equipped with an internal device that automatically realigns the arc if it is turned by vandals. This feature works when the nozzle turret is turned in either direction. When forced outside of the originally set arc, the sprinkler takes the shortest path back to the pattern without completing a full rotation. This prevents non-irrigated areas from getting wet.

Maintenance Features:

Drain Check Valve:

All Hunter sprinklers are available with a factory-installed drain check valve. This valve prevents low-head drainage in areas with elevation changes up to 10 feet. To order, specify PGP-00-CV or PGP-04-CV. All PGP-12 sprinklers come standard with a drain check valve. If a check valve is added to a standard PGP-04 in the field, the elevation check height will be approximately 4 feet.

Reclaimed ID:

All Hunter rotors are available with a purple rubber cover permanently attached. This purple cover indicates that reclaimed water is being used for the project, promoting safety on the job site by clearly identifying the water source.

Hunter Professional PGP Ultra Series Specifications

General

Warranty	5 years
Model	PGP Ultra
Adjustable Arc	360 degrees
Precipitation Rate	Approximately 10 mm/hr
Nozzle Trajectory	25°
Riser Height	10 cm
Body Material	Plastic