Friction Loss Calculator
Williams-Hazen formula · C = 150 (thermoplastic pipe)
GPM
PSI Loss per 100 ft
1.950
Velocity (ft/sec)
4.11
DR-9 · 250 PSI · 1-1/2" · 22 GPM
DR-9 · 250 PSI · 1-1/2" · I.D. 1.478" · 22 GPM · 1.950 PSI Loss per 100 ft · 4.11 ft/sec
Values are calculated using the Williams-Hazen formula (C = 150) and are provided for reference only. Interstate Plastic, Inc. makes no warranty as to accuracy or fitness for any particular use. Consult a licensed engineer for system design.