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Holly Hill, SC | Learn to use the simple math and charts so you can make your own adjustments when you are not happy with the results. If you choose a size and the flow indicators are not level you may have to go with a smaller size.
GPM = (GPA x speed x width) / 5940
GPM = (17gpa x 4mph x 30") / 5940
GPM = 0.343
Nitrogen factor = 1.13
GPM (nitrogen) = 0.343 x 1.13 = 0.388 GPM to use in orifice chart.
20 to 40 psi would be orifice #67 to #55 respectively.
https://www.teejet.com/-/media/dam/agricultural/usa/sales-material/c...
Edited by shulerfarm 6/2/2024 21:49
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Orifices for fertilizer
