4.5 Inch Hose - Friction Loss Table
This chart is designed (using the friction loss formula) to find quick and accurate answers for 4 1/2" fire hose fricton loss. To find the friction loss for a 100 foot section of fire hose, find the column with the desired GPM and to its right you'll see the corrosponding friction loss. You can also print this image on a 8.5x11 sheet of paper.
Example: Friction loss for 100 ft of 4 1/2" fire hose with 2,000 GPM is 40 psi. You can find the corrosponding friction loss for 2,000 gpm at the bottom of column 4 in the chart below. You can see that 2,000 gpm has 40 psi friction loss. You can also see theanswer on the friction loss calculator