calibration
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14 Terms
What are the functions of a spray head? 3
Control the flow rate
Form droplets
Disperse droplets into specific patterns
What are the 5 spray tip materials?
Ceramic, steel, hardened steel, polymer, and brass
What are the 2 main types of sprayer applicators?
Broad and banded.
What are the broad sprayer pattern?
tapered spray pattern
How much overlap is needed by a tapered sprayer?
At least 30%. You can go higher but do not go lower.
When should you replace sprayer tips?
When the flow rate is 10% higher than expected
What type of spray nozzle are banded applicators going to use?
flat spray tip
Why use larger dropslets?
Less drift and more root hitting
Why smaller droplets?
Much better coverage but greater drift risks
What style of pesticide require smaller droplets due to needing better coverage?
You need a smaller droplet for contact
What do you need to do to pressure to double volume?
Quadruple the pressure (psi) and vise versa
What is 88ft/min
1 mph
What is the sprayer calibration equation
gpm=gpa*MPH*Inches/5940
