HDPE Pipe Friction Loss Calculator
Darcy–Weisbach head loss for water in hdpe pipe (ε = 0.007 mm) with auto friction factor.
Roughness 0.007 mm: butt-fusion beads add local loss; SDR wall thickness changes the ID for the same OD.
Formula
HDPE Pipe Friction Loss Calculator is a free hdpe friction loss for pump engineers, plumbers and plant designers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About HDPE Pipe Friction Loss Calculator
Darcy–Weisbach head loss for water in hdpe pipe (ε = 0.007 mm) with auto friction factor. The calculation implements h_f = f·(L/D)·V²/2g with ε = 0.007 mm (hdpe), water 20 °C (Moody chart roughness values — Crane TP-410). Roughness 0.007 mm: butt-fusion beads add local loss; SDR wall thickness changes the ID for the same OD.
How to use HDPE Pipe Friction Loss Calculator
- 1Enter Flow rate in L/s.
- 2Enter Pipe inner diameter in mm.
- 3Enter Pipe length in m.
- 4Read Head loss, Loss per 100 m, Velocity instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use HDPE Pipe Friction Loss Calculator?
- ✓Implements the standard formula — h_f = f·(L/D)·V²/2g with ε = 0.007 mm (hdpe), water 20 °C
- ✓Reference cited on-page: Moody chart roughness values — Crane TP-410
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the HDPE Pipe Friction Loss Calculator use?+
It computes h_f = f·(L/D)·V²/2g with ε = 0.007 mm (hdpe), water 20 °C, per Moody chart roughness values — Crane TP-410. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Roughness 0.007 mm: butt-fusion beads add local loss; SDR wall thickness changes the ID for the same OD.
Can I use this for pump selection?+
Use it to establish the duty (flow, head, NPSH, power) and then pick a pump whose curve passes through that point near best efficiency. The tool gives you the engineering numbers a supplier will ask for.
Is the HDPE Pipe Friction Loss Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
Related Engineering tools
Reynolds Number Calculator
Compute Re from density, velocity, pipe diameter and viscosity — with instant laminar/turbulent classification.
● LiveLaminar vs Turbulent Flow Classifier
Classify hydraulic-oil or process-fluid flow regime from kinematic viscosity, line velocity and tube bore.
● LiveBernoulli Equation Solver
Solve downstream pressure between two points from velocities, elevations and fluid density (ideal, lossless).
● Live