What is the velocity flow in feet per second (FPS) for an 8.0 inch diameter pipe delivering 675 gallons per minute (GPM)?

To find the velocity flow in feet per second (FPS) for an 8.0 inch diameter pipe delivering 675 gallons per minute (GPM), you can use the formula for calculating flow velocity:

[ V = \frac{Q}{A} ]

where:

• ( V ) is the flow velocity (FPS),

• ( Q ) is the flow rate (cubic feet per second),

• ( A ) is the cross-sectional area of the pipe (square feet).

First, convert the flow rate from gallons per minute to cubic feet per second, since 1 gallon is approximately 0.1337 cubic feet.

675 GPM can be converted to cubic feet per second:

[ Q = 675 , \text{GPM} \times \frac{0.1337 , \text{cubic feet}}{1 , \text{gallon}} \times \frac{1 , \text{minute}}{60 , \text{seconds}} ]

Calculating this gives:

[ Q = 675 \times 0.1337 \div 60 \approx 1.503 , \text{cubic feet per second} ]

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