Question on flood-jet tips

Fritz Maurer · Apr 2, 2021

Got a field gymmy that I am going to spray with for the first time this spring. The hours/acres on these tips is
unknown. I was wondering how to check the flow rate with such large orifices , I mean you cant exactly hold a
bucket under them at 60 psi... so how should I handle this? The nozzle says S.S. CO. 3/4 QCK-SS-20 . Is this
GPH?

WESnIL · Apr 2, 2021

I doubt you will be spraying @ 60 psi, 40 is more common. 60 psi would give lots of drift. The QCK-SS-20 translates to a TeeJet Floodjet Wide Angle Flat Spray Tip Nozzle. The TeeJet book puts the output of one nozzle @ 4 gpm (gallons per minute) @ 40 psi. There is an entire page in the TeeJet book for that tip. With nozzles at 40 spacing that tip will have an output of 149 gallons per acre @ 4 mph, 119 gallons per acre @ 5 mph, 99 gallons per acre @ 6 mph, etc. as I read the chart. When sitting in the yard and the sprayer operating at your desired pressure, measure the volume from one nozzle for a minute. Determine the total width when spraying. For example, nine nozzles at 40 inch spacing results in a spray width of 360 inches or 30 feet. To spray one acre you will travel 1,452 feet, or just over 1/4 mile. Do a test spray with water and determine your travel time for that distance. Now you will have a volume and time data to start your calculations for your chemical dilution. There are formulas to use but this is a starting point. Hope this helps.

muleman51 · Apr 2, 2021

That's a Spray Systems nozzle. You should be able to look it up online..

Farmboy 81 · Apr 2, 2021

You can go to the Teejet website and download the Spray Select app. It has a chart where you plug in your speed, tip spacing, tip style, desired GPA, and it'll give you the recommended tip size and pressure to achieve what you want to do. Very handy if you do much spraying.

caterpillar guy · Apr 3, 2021

Number on the nozzle is a size. Then you look at the chart to see what pressure and volume you want. With nozzle spacing,speed and pressure you will have a volume per acre. Or you can look up what volume you want and set your pressure and speed to that. And yup a pail under the nozzle if you used a pail with asmall hole on it over the nozzle it would not spray all over bad to use as a measure of flow. Just let it flow for a minute then calculate out how much it is doing. By checking each nozzle this way you can tell if one or all are worn excessively.

Question on flood-jet tips

Fritz Maurer

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WESnIL

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muleman51

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Farmboy 81

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caterpillar guy

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