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PIPE SIZE vs MAX FLOW
1/2"
2 gallons per minute
3/4"
4 gallons per minute
1"
8 gallons per minute
1-1/2"
20 gallons per minute
2"
40 gallons per minute
3"
100 gallons per minute
4"
200 gallons per minute
6"
440 gallons per minute
8"
750 gallons per minute
10"
1150 gallons per minute
CONVERSIONS
1 acre = 43,560 square ft
1 mile = 5,280 ft
1 acre-in = 27,154 gal (30,000gal)
1 acre-in/week = 2.7gpm/acre (3gpm)
0.11in/hr = 50 gpm/acre
1 gal = 231 cu in = 0.137cu ft
1 cu ft = 7.48gal
1 gal = 8.33 lbs
1 ft of water = 0.433 lb per sq in.
1 psi = 2.31 ft of water, i.e. 10psi = 23 ft, and 100 ft = 43 psi
1 Atmosphere (at sea level) = 14.7 lb per sq in = 34 ft of water
1 Hp = 33,000 ft-lb/min = 0.746 kilowatts = approx 3/4 KW
Pump Hp = gpm x Total Head (ft) / 3960 x Pump Efficiency (percent decimal)
INFO
What do we need to know about your system?
What is the flow rate (gpm)?
What is the Pressure (psi)?
What is the water source (pond, well, municipal)?
What is the slope (1%, 2%, or greater)?
What is the crop or feature?
What is the area (acres) and row and crop spacing?
What is the row length?
For a pump, what is the power source (PTO, Electric (1 or 3 phase), gas, well)?
What are the future plans?