Fire Hose Friction Loss Calculator


Enter the hose diameter, the gallons per minute (GPM), and the length, into the Friction Loss Calculator and then press the submit button.

Friction Loss Calculator
Select Diameter From the list
Enter GPM (Gallons Per Minute)
Enter Hose Length (in feet)

Friction Loss (PSI)

Friction Loss Calculations Explained:

Friction loss occurs when water passes through a fire hose. Distance, diameter, and the GPM / volume, all affect friction loss. As water passes through a fire hose, friction between the water and the inside surface of the hose cause turbulence. This turbulence reduces the energy produced by the pump (PSI). As a result, the PSI at the other end of the hose will be lower. The higher the gpm passing through a hose or pipe, the more turbulance and friction loss will result. strives to provide fire departments & firefighters with qulaity tools.  But, the user takes full responsiblity for the information contained above.  Use at your own risk!

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