Fire Hose Friction Loss Cheat Sheet - App = appliance friction loss. Elev = elevation loss or gain. Web friction loss is determined by the gpm flowing, the size of the hose and the length of the hose. Loss of pressure created by the turbulence of water moving against the interior walls of fire hose or appliances. Web np = nozzle pressure. Web determine the lift (in feet) 2. Determine the friction loss in the intake hose used 3. Some figures may be used more than once; Most of the fog nozzles have. Add lift and friction loss together 4.
Most of the fog nozzles have. Divide by 2.3 (2.3 is the amount of lift (in feet) that 1psi. App = appliance friction loss. Web friction loss is determined by the gpm flowing, the size of the hose and the length of the hose. Add lift and friction loss together 4. Loss of pressure created by the turbulence of water moving against the interior walls of fire hose or appliances. Web determine the lift (in feet) 2. Elev = elevation loss or gain. Web np = nozzle pressure. Some figures may be used more than once; All three factors must be considered. Determine the friction loss in the intake hose used 3.