How to use Airblast Nozzle Tables

The author looking up nozzle rates during a spring calibration. The operator was running at 190 psi, but the catalogue only listed 180 psi and 200 psi. When span is only 20 psi, it’s fairly safe to approximate the output. When the table only lists in 50 psi increments, it is more difficult to determine the rate without testing the output. This issue usually occurs at pressures above 200 psi, and that’s very high for most horticultural operations. Consider using a lower operating pressure, if possible.

Airblast operators should know how to read a nozzle table. They are found on dealer and manufacturer websites as well as in their catalogs. Table layout varies with brand, but they all relate a nozzle’s flow rate to operating pressure. The better tables also provide the spray angle and the median droplet size (i.e. spray […]

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Tank mix compatibility

This article was co-written with Mike Cowbrough, OMAFRA Weed Management Specialist – Field Crops In Canada, users of commercial class pest control products for crop protection or vegetation management are permitted to apply unlabeled tank mixes of registered pest control products as long as: Each partner is registered for use on the crop. The tank […]

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Assessing Airblast Coverage

This article describes a method for assessing airblast sprayer coverage based on a protocol developed by Dr. David Manktelow (Applied Research and Technologies Ltd., NZ). It was co-written with David Manktelow and Mark Ledebuhr (Application Insight, LLC, USA). Why assess coverage? Airblast sprayer configuration can require a lot of guesswork. There’s too much time between […]

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What do European Sprayers Bring to the North American Market?

We discuss what sets the European sprayer designs apart, with examples of overall dimensions, engine and wheel sizes, as well as tanks, booms, plumbing features. European sprayers offer similar or greater capacity compared to North American models with lighter weights and innovative designs. […]

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