May 01 Daily Question: Head Loss Due to Friction (Hazen-Williams)

NCEES Civil PE Specification V.D.: Pressure conduit


A new 14-inch diameter welded steel pipe (C = 130), 300 feet in length, is used as a firewater line in an industrial facility.  Given a required outlet pressure of 20 psi and a flow of 750 gallons per minute, calculate the necessary inlet pressure. 

Assume changes in head loss are only due to friction.

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