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What is the velocity of water in a 3 inch schedule 40 pipe with a flow rate of 60 gallons per minute?
Wiki User
∙ 10y ago
First, find the area of the pipe using the diameter of Sched 40 3" pipe - 3.07".
A = pi*(D/2)2
A = 3.1415*(3.07/2)2
A = 7.40in2
Next, Find the rate of travel of 60 GPM through a 7.4in2 cross section:
Speed = Flow rate / Cross Section
Speed = 60 gal/min / 7.4in2
Note that 1 GPM = 231 in3
Speed = 60gal/min * 231 in3/gal / 7.4in2
Speed = 60*231/7.4 in/min
Speed = 1,897 in/min
Convert to feet per sec
Speed = 2.63 ft/s
Wiki User
∙ 10y ago
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