![]() Here’s another chart laid out differently but with similar information. We’ll choose that one for the quarter circle. The number 4 nozzle has a flow rate of roughly 4 gallons per minute, and the number 2 nozzle has a flow rate of roughly 2 gallons per minute. We choose a nozzle with half that flow rate for the half-circle. ![]() If we use a number 8 nozzle for the full circle you can see that at 45 PSI, it has a flow rate of about 8 gallons per minute. You probably don’t know your exact water pressure and that’s fine, let’s just assume it’s 45 PSI. Most residential rotor manufacturers assume an ideal water pressure of 45 PSI. Matching Your Water Pressure To The Right Nozzle If you didn’t get one, you can find the chart for your particular rotor on. ![]() Nozzle charts are often included with the purchase of your rotor. Let’s look at a nozzle chart and nozzle tree (chart shown in the video). Your half-circle rotors should have a nozzle with twice the flow of your quarter circle rotors. Now, what does that have to do with flow rate you may ask? Well, your full circle rotors should have a nozzle installed that has twice the flow rate of your half circles. It’s important to pick and install nozzles in such a way as to balance your irrigation system out. Understanding The Flow Rate Of A Sprinkler The rotor that goes 90 degrees will cover the same patch of lawn 4 times for every one time the 360-degree rotor will turn. That means that the patch of grass serviced by the 180-degree rotor gets twice as much water as the patch watered by the 360-degree rotor. The 180-degree rotor will cover the same patch of grass twice for each time the 360-degree rotor goes around once. They may even all have the same nozzle installed. Let’s say you have one rotor that goes 360 degrees, another rotor going 180 degrees, and another rotor only covering 90 degrees and they’re all in the same zone. In order to talk about nozzle selection, we need to quickly cover the concept of matched precipitation. why matched precipitation is important for your sprinkler system I’m your Sprinkler Warehouse product specialist, let’s get started. The professional, or commercial, line of Orbit products are under the name Hydro-Rain.This video helps you learn to select the right nozzles for your system’s rotors to ensure your sprinkler system is running at its optimal level.Mist cooling is provided by the ArizonaMist product line for residential or commercial properties, as well as portable personal applications.Hose-end applications are met in the SunMate product line, including sprinklers, timers, pistols, nozzles and wands.The DripMaster line is designed for delicate drip-water applications in areas with special needs (e.g., gardens, flower beds, container plants, trees and ground cover).Underground irrigation is provided by the WaterMaster product line that includes sprinkler timers, valves, accessories, tools and sprinkler heads.Orbit Irrigation Products provides products in five irrigation categories: Today, Orbit is a leading retail brand for irrigation and watering products. In the 1970s that division of the company was incorporated as Orbit Irrigation. The company grew and developed a proprietary line of irrigation products. In the 1950s, Max Ericksen founded a sprinkler and plumbing products distribution company. Orbit was acquired by Husqvarna Group in December 2021. ![]() It distributes over 2,000 products to 40 countries on five continents. Orbit Irrigation Products, Inc, located in Salt Lake City, UT, United States, is a manufacturer and supplier of irrigation products for residential and commercial markets and has been in business since 1986.
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