HUNG PUMP
Pipe Head Loss Calculator
This calculator determines the head loss (friction loss) in a pipe using the Hazen-Williams equation. Enter the pipe specifications and flow parameters to calculate the head loss and flow velocity.
Flow Rate:
m³/s
m³/hr
GPM
LPM
Pipe Diameter:
mm
inch
Pipe Length:
meters
millimeters
feet
Pipe Material (Hazen-Williams C-Factor):
New Steel/Iron (C=150)
New PVC/Plastic (C=140)
HDPE - New (C=150)
HDPE - Used (C=140)
Galvanized Iron - New (C=120)
Galvanized Iron - Used (C=100)
Ductile Iron - New (C=130)
Ductile Iron - Used (C=120)
Cast Iron - New (C=130)
Cast Iron - 10 years (C=110)
Cast Iron - 20 years (C=100)
Cast Iron - 30 years (C=90)
Cast Iron - 40 years (C=80)
Fire Hose - New (C=140)
Fire Hose - Used (C=130)
Garden Hose - Rubber (C=100)
Industrial Hose - New (C=130)
Optional Fittings
90° Elbows:
45° Elbows:
Tee (Through):
Tee (Branch):
Gate Valves:
Globe Valves:
Check Valves:
Calculate Head Loss
Head Loss (hf):
-
meters
Flow Velocity (v):
-
m/s
Equivalent Length from Fittings:
-
meters