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You are here: Home > Sprinkler School™ > Parts and Components > Sprinkler Sprays and Rotors > How To Select The Right Sprinkler Head
Different Types of Sprinkler Spray & Rotor Heads

How To Select The Right Sprinkler Head

Sprays/Rotors - Parts and Components

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Sprinkler Head Type


The types of heads utilized on a specific project are determined by the dimensions of the area being covered, the water pressure available for operation, and a variety of other factors. Choose between a spray or rotor.

Spray Heads


Sprinkler Sprays

Spray heads spray water in specific circular patterns and can be changed at your discretion. Spacing between sprinklers varies depending upon the specific nozzle that is installed in the head. To operate efficiently, units should rarely be spaced further than 15 ft apart and should be supplied with 20-30 PSI of water pressure. Ideal for smaller, fragmented, hard-to-reach areas, these heads discharge 2-3 times the water of a rotor.

Nozzle Charts:


Hunter | Rain Bird | Nelson | Weathermatic | Irritrol | Toro

Rotors


Sprinkler Rotors

Rotor heads also disperse water in circular patterns. However, these are used to cover larger areas of un-interrupted space. Small rotors tend to cover radii of 15-52 feet and large rotors can be designed to cover radii of up to 100 feet. To operate efficiently, rotors need to be supplied with more water pressure than spray heads. The PSI level should approximately equal the space between each installed unit. There are two basic types of rotary heads, categorized by the mechanism that causes the sprinkler to rotate. These types are impact rotors and gear-driven rotors.

Click here to view Rotor Performance Charts

Sprinkler Head Design


Once you have chosen either a spray or a rotor, you must next determine what sprinkler style will best meet the needs of your irrigation area. Choose between either a pop-up or fixed design.

Pop-Up


Sprinkler Sprays Pop-Up

This is the most common design selected by consumers. Installed below the ground, the sprinkler head remains out of sight while inactive. Accordingly, it will not corrupt or compromise the aesthetic beauty of your landscape. Furthermore, there wont be any pipes sticking out of the ground for you and your children to either destroy or trip over. Once the sprinkler system is turned on, a small portion of the head will emerge above the surface to disperse water to the irrigation area.

Fixed (Shrub)


Sprinkler Sprays Fixed

Installed above the ground on a riser, this sprinkler design should be utilized if you need to provide water to high-reaching plants. They are sometimes cheaper than pop-ups, but we do advise you that this is not the best selection for an area in the middle of the lawn if it can be avoided. Pop-Ups can usually be designed to perform similar functions and will mitigate the potential problems caused by shrubs (risers) as described in the above paragraph. If a shrub is indeed needed, we encourage you to install them in the corner areas of the landscape not usually walked through.

- The Do-It-Yourself Sprinkler Store -
 
   
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