You have spared no expense to get a state-of-the-art watering system for your garden. Hunter PGP Nozzles are the best ones to get, so you straight out-bought them.
However, you need to do a tiny bit of research before doing that. You need to consult a Hunter PGP nozzle chart to make sure that your watering system covers your landscape evenly.
Making sense of a nozzle chart can be confusing, but fear not! I’m here to help you out. I will show you how the nozzle chart will tell you what Hunter PGP nozzle you should use in your sprayer.
Getting the nozzle size right is crucial for ensuring ample coverage, optimum droplet shape, and many more important aspects. Read on, and it will make more sense.
Hunter PGP Nozzle Chart: How To Choose The Right Nozzle
You need to do a few calculations to find out the right nozzle size for your sprayer. So, pick up a pencil and a calculator, I will briefly explain how it’s done:
Step 1. Determine The Application Rate
How much water do you want to be sprayed per acre? It depends on the type of crop or landscape you want to irrigate. This is typically measured in gallons per acre (GPA) or liters per hectare (LPH).
Step 2. Determine The Sprayer’s Flow Rate
Find out the flow rate of your sprayer by measuring the water coming out of the nozzle within a defined time frame.
I would recommend repeat this process multiple times and calculate the average flow rate. The flow rate is typically quantified in gallons per minute (GPM) or liters per minute (LPM).
Step 3. Determine The Pressure Range
Consult the manufacturer’s specifications or guidelines for your sprayer to identify the recommended pressure range for optimal nozzle performance.
It is important to operate the sprayer within this range to ensure accurate and consistent spray patterns.
Step 4. Refer A Hunter PGP Nozzle Chart
Now, take a look at a Hunter PGP nozzle chart and find a nozzle that matches your application rate, flow rate, and pressure range requirements.
Browse through the options and see which one fits your need the best.
Hunter PGP Ultra Nozzle Chart
Hunter PGP Blue Nozzle Chart
| Nozzle | Pressure (PSI) | Radius (ft.) | Flow (GPM) |
| 1.5 | 25
35 45 55 65 |
29
31 31 32 32 |
1.2
1.4 1.5 1.8 1.9 |
| 2.0 | 25
35 45 55 65 |
33
33 34 34 32 |
1.4
1.7 2.0 2.1 2.3 |
| 2.5 | 25
35 45 55 65 |
33
35 35 35 35 |
1.7
2.1 2.5 2.6 2.9 |
| 3.0 | 25
35 45 55 65 |
35
36 38 39 39 |
2.2
2.7 3.0 3.4 3.7 |
| 4.0 | 25
35 45 55 65 |
37
39 40 41 41 |
3.0
3.5 4.0 4.5 4.8 |
| 5.0 | 25
35 45 55 65 |
37
39 42 42 42 |
3.7
4.5 5.0 5.7 6.2 |
| 6.0 | 25
35 45 55 65 |
38
40 43 44 44 |
4.3
5.6 6.0 6.7 7.3 |
| 8.0 | 25
35 45 55 65 |
37
41 44 46 46 |
6.0
7.0 8.0 9.0 9.8 |
Hunter PGP Red Nozzle Chart
| Nozzle | Pressure (PSI) | Radius (ft.) | Flow (GPM) |
| 90⁰ | 25
35 45 55 65 |
23
24 25 25 25 |
0.74
0.88 1.00 1.11 1.21 |
| 120⁰ | 25
35 45 55 65 |
23
24 25 25 25 |
1.00
1.21 1.38 1.53 1.67 |
| 180⁰ | 25
35 45 55 65 |
23
24 25 25 25 |
1.44
1.73 1.98 2.21 2.41 |
| 360⁰ | 25
35 45 55 65 |
23
24 25 25 25 |
2.78
3.34 3.82 4.25 4.63 |
Hunter PGP Red Vs Blue Nozzle
Why do Hunter PGP nozzles come in the Red and Blue categories? The primary distinction is the flow rate of these nozzles.
With the blue ones, you get higher flow rates. As I documented in the chart above, the flow rates can range from 1.2 GPM to 9.8 GPM in Hunter PGP Blue nozzles. So, I would recommend them for watering a bigger area.
In contrast, Hunter PGP Red nozzles have slower flow rates, which vary from 0.74 GPM to 4.63 GPM.
These nozzles produce smaller droplets than their blue counterparts. This particular attribute makes them less efficient to operate in windy situations since the droplet drifts away easily because of its smaller size.
Here’s a comparison chart that will help you understand the differences better:
| Differentiating Factor | Hunter PGP Red | Hunter PGP Blue |
| Application Angle | Medium to high-angle spraying | Low-angle spraying. |
| Coverage | Better suited for narrower coverage | Better suited for broader coverage. |
| Recommended Use | This is more effective for ground cover, flower beds, and shrubbery areas. | These have a more durable and a larger spray pattern. So, they are better for lawns, large areas, and open spaces. |
| Droplet Size & Wind Resistance | Produces smaller droplets because of their larger orifice. So, the droplets are more vulnerable to wind interference. | Produces larger droplets because of their smaller orifice. So, the droplets are more wind resistant. |
How Do You Read A Nozzle Number?
Reading a nozzle number involves understanding its components and their meanings. Nozzle numbers typically consist of two digits, each representing specific characteristics.
Allow me to break down a typical nozzle number into various parts and describe them individually.
First Digit
The first digit of a nozzle number reveals the width of the spray pattern in degrees. It tells you how wide the liquid spray will be once it comes out of the nozzle.
Second Digit
The flow rate capacity of a nozzle is represented by the second digit. This indicates the volume of water that the nozzle can deliver in a specific time frame, measured in either gallons per minute (GPM) or liters per minute (LPM).
To illustrate the reading process, let’s consider a nozzle number; 10005. Since there are no hyphens to divide the digits, you will have to do some detective work.
One interpretation could be, 1-1005. That means a spray angle of 1⁰ and a flow rate of .10005GPM. Needless to say, that’s impractically small.
Let’s consider 11-005. In this case, the spray angle increases to 11⁰ and the flow rate rises to .005GPM.
Still, that doesn’t sound much practical. Move on to 110-05. Now, we get a spray angle of 110⁰ and a flow rate of .05 GPM.
That sounds more feasible, and that’s the information the nozzle manufacturer actually wanted to convey.
In some cases, the manufacturer might provide some extra information through the nozzle number. Let’s consider this one: LF 80-5R. Here, LF stands for Long Flow.
The design of the nozzle facilitates an extended and uniform spray pattern. 80 is the spray angle, so the flow will be 80 ⁰ wide when it flows out of the nozzle.
5 represents the flow rate of the nozzle. It means, when you use the nozzle at the rated pressure, it will pump out 0.5 gallons of liquid every single minute.
R, on the other hand, expresses that the nozzle has “reduced drift”, which means the droplets will have minimal wind interference.
Final Words
In conclusion, the Hunter PGP Nozzle Chart is a valuable reference tool for anyone who wants to perfect the spraying game of his sprinklers.
It will help you to optimize water distribution and make sure you are making the most out of the available resources.
The chart can give you vital information like nozzle types, flow rates, and operating pressures to maximize performance.
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