CGCADGuide.tools
Piping Hydraulic Tool

Pipe Friction Head Loss & Pressure Drop Calculator

Determine static friction head loss in water supply and process piping using standard Hazen-Williams hydraulic models.

Input parameters (Parameters)

* C factor (Hazen-Williams constant) The larger the value, the smoother the pipe wall.

2. Design flow (Flow Rate Q)15 m³/h
m³/h
L/min
3. Actual inner diameter of pipe (Inner Diameter d)80 mm
4. Total physical length of pipe (Length L)100 m

Hydraulics Report

Flow Velocity
0.83 m/s

Gravity water supply recommendation: 0.8 - 1.5 m/s

Frictional head loss (Static Head Loss)
0.85 mH₂O

Corresponding total pressure loss: 8.4 kPa

Unit Friction Gradient (Unit Loss)
0.0839 kPa/m

Comfort limit: < 0.35 kPa/m

Fluid resistance and shear gradient simulatorH-W MODEL ACTIVE
Pipe diameter (d): 80 mmHigh static pressure endNormal Flow Resistance
Flow Physics Tip: Flow velocity animation shows the change in kinetic energy of the fluid through the movement of streamlines in the pipe.. The C factor of the pipe material determines the pipe resistance coefficient; When the inner surface of the pipe is rusted or scaled (e.g. C sliding from 150 to 80) , The boundary resistance of the pipe wall increases significantly, and the unit friction head loss under the same flow rate will increase exponentially..

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