Friction Loss Calculator
Williams-Hazen formula · C = 150 (thermoplastic pipe)
GPM
PSI Loss per 100 ft
2.284
Velocity (ft/sec)
4.73
SIDR · All PSI · 1-1/2" · 30 GPM
SIDR · All PSI · 1-1/2" · I.D. 1.610" · 30 GPM · 2.284 PSI Loss per 100 ft · 4.73 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.