Measuring Pressure Drop

All sprayers experience a drop in pressure as the solution moves further away from the pump.  Here’s why that’s important, and how to measure it. Optimal nozzle operation in terms of spray quality and fan angle is closely tied to spray pressure.  As we try to maximize travel speed range with a modern sprayer, we […]

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How to Use a Nozzle Flow Chart, With a Surprising Twist

Calibration Chart (US Units)

Undoubtedly, the number one question we get from operators is: “Which nozzle should I get”? Luckily there’s no simple answer, or we wouldn’t have jobs! The reason it’s not simple is because selecting the “right” nozzle for a sprayer is a process. It can be broken down into two steps: identifying the right flow rate […]

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How Fast Should I Drive My Sprayer?

It seems simple: The faster you drive the sprayer, the more area you cover. This makes higher travel speeds a seductive method for improving productivity. Sprayer manufacturers knew this 25 years ago when pull-type sprayers first received bigger, suspended outrigger wheels. Since then they’ve delivered more powerful engines, better hydraulic motors, smoother suspension and cruise […]

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Rate Controllers and Spray Pressure

Monitors

Automatic rate controllers are standard equipment on almost all new sprayers. They ensure consistent application volumes, but they don’t do all the thinking for you.  We explore how to make them work properly. A rate controller needs to know the boom width (entered by the user), the total spray liquid flow rate (from a flow […]

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Selecting the Right Water Volume

JD 4940

Low water volumes can mean less effort to apply pesticides. But there is a limit to how low water volumes can go before problems appear. To understand the reasons why, and help applicators use the right volume for a given situation, we briefly outline what happens to a spray cloud as it reaches the crop canopy. Basic Principles […]

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