Home > Hunter 12″ PGP-Ultra Rotor

The Hunter PGP-12CV Ultra is a 12-inch rotor with upgraded features. We’re going to discuss a few of the amazing features of this fine rotor and show you how to change out a nozzle and make some adjustments. I’m Dwayne Smith your Sprinkler Warehouse Product Specialist. Let’s get started.

Benefits Of Hunter’s PGP-Ultra Rotor For Your Sprinkler System

The PGP-ADJ has been the best-selling rotor in the industry since 1981. The PGP ULTRA is the upgraded version of this. And this is the 12-inch version of the PGP Ultra. What are the upgraded features? It has a non-strippable drive to give you years of trouble-free service. It has an Automatic Arc return. If someone cranks the turret past its arc setting, it will return automatically to its setting. So, you won’t have to reset the arc and water won’t get wasted. Another upgraded feature is it has a part and full circle arc in one rotor. So, when the rotor is set to 360 degrees it goes around in complete circles without reversing.

And the PGP-12CV has a check valve. Check valves to prevent low head drainage. When a zone has some significant elevation differences to it…water will often drain from the lowest sprinkler heads once the zone shuts off… Which can cause puddles and erosion around the sprinkler heads. Check valves to stop this. The check valve on this rotor holds back up to 10 feet of elevation.

Now for the basics. You can adjust the arc on the PGP-12CV from 50 to 360 degrees. The popup height on this rotor is twelve inches and it has a three-quarter-inch inlet. It has a watering distance of 17 to 47 feet depending on the nozzle installed and how the adjustment screw is set.

Adjusting The Arc And Nozzle Of Your Rotor

This rotor comes with a set of nozzles. There are additional nozzle choices for this rotor also available. Let’s talk about the various adjustments. Looking at the top of the rotor This is where you set your Range Adjustment Screw. This screw also holds the nozzle in place. You can use a hunter rotor tool like this one or a small flathead screwdriver. This is the lifting socket. Use the plastic end of the Hunter Rotor tool for that. This is the arc Adjustment Socket. Once again, use the plastic end of the rotor tool for that. Let’s go see it in action.

We’ll begin by changing out the nozzle. Use the plastic end of the rotor tool to pull up the riser. Using a nozzle insert collar to hold the up riser makes this job a lot easier. But you can just hold the riser up with your hand. Back out the radius adjustment screw. Pull out the nozzle with a pair of needle-nose pliers or pry out the nozzle with a flat head screwdriver. Push in the new nozzle. Screw back down the radius adjustment screw. With the water running, adjust the watering distance with the radius adjustment screw. You want the spray to reach the next head over.

That’s called head-to-head coverage. To adjust the arc setting, also called the pattern, put the plastic end of the rotor tool in the arc adjustment slot. Turn the tool clockwise to increase the arc and counterclockwise to decrease. You can turn the turret back and forth to check your pattern. The PGP Ultra will do a fantastic job for you and give you years of reliable service. Purchase some Ultras today on