Fire Hose Friction Loss Calculator
Instructions
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 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.