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| I don’t know what 24s is but here is some math for you:
15” is 1.25 feet
You said you’re going 5 mph. There are 5,280 feet in a mile so doing 5 miles an hour is traveling 26,400 feet in an hour.
So in one hour, one of your 15” rows covers the equivalent of a rectangle that is 1.25’ wide and 26,400 feet long. Multiple those by each other and that means the row covered 33,000 square feet.
If you have a field that is 1 mile by 1 mile it has 640 acres.
A mile is 5280 feet so that’s 5,280 feet times 5280 feet = 27,878,400 square feet for 640 acres.
27,878,400 square feet divided by 640 acres = 43,560 square feet per acre.
So back to your row unit covering 33,000 square feet in an hour. 33,000 square feet per hour divided by 43,560 square feet per acre = 0.758 acres per hour on that one row unit.
You’re wanting 20 GPA so you’re talking 20 times 0.758 = 15.16 GPH out of your orifice or (preferably) metering tube
There are 60 min in an hour so 15.16 GPH divided by 60 minutes = 0.253 GPM.
So your orifice or metering tube needs to be able to do 0.253 GPM of 24s. I’m guessing 24s might be similar to 12-0-0-26s that I’m familiar with. If so it runs through an orifice or a metering tube at about 85% of the flow of water and ratings on orifices and metering tubes are based on water. So 0.253 GPM divided by 0.85 = 0.297 GPM.
Long story short, you need to look at orifices or preferably metering tubes that will flow somewhere around 0.297 GPM of water at 25 to 40 PSI. | |
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Help me get the correct orifice disc
