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