| EXAMPLE: A 6” pump end requiring 39 hp input will
pump 124 °F water in an 8” well at a delivery rate of 140
gpm. From Table 7A, a 6” fl ow sleeve will be required to
increase the fl ow rate to at least 3 ft/s
Using Table 8, the 1.62 heat factor multiplier is selected
because the hp required is over 30 hp and water
Using Table 8, the 1.62 heat factor multiplier is selected
because the HP required is over 30 HP and water temperature
is above 122°F. Multiply 39 HP x 1.62 (multiplier), which
equals 63.2 HP. This is the minimum rated service factor horsepower
usable at 39 HP in 124°F. Using Table 8A, select a motor
with a rated service factor horsepower above 63.2 HP. A 60
HP motor has a service factor horsepower of 69, so a 60 HP
motor may be used.
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