Theoretical Friction Loss in Fire Hose

GPM
Flow		 Pressure Loss Per 100 Feet (psi)
Hose Diameter
3/4" 1" 1 1/2" 1 3/4" 2" 2 1/2" 3" 3 1/2" 4" 4 1/2" 5"
12 16 2 0                
20 44 6 1 1 0            
23 58 8 1 1 0            
30 99 14 2 1 1 0          
45 223 30 5 3 2 0          
60 396 54 9 6 3 1 0        
95   135 22 14 7 2 1 0      
125   235 38 24 13 3 1 1 0    
150   338 54 35 18 5 2 1 0    
200     96 62 32 8 3 1 1 0 0
250     150 97 50 13 5 2 1 1 1
300     216 140 72 18 7 3 2 1 1
350     294 190 98 25 10 4 2 1 1
375       218 113 28 11 5 3 1 1
400       248 128 32 13 5 3 2 1
450       314 162 41 16 7 4 2 2
500         200 50 20 9 5 3 2
550         242 61 24 10 6 3 2
 

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