PVC / uPVC Pipe Friction Loss Calculator
Darcy–Weisbach head loss for water in pvc / upvc pipe (ε = 0.0015 mm) with auto friction factor.
Roughness 0.0015 mm: hydraulically smooth — friction stays near the smooth-pipe limit for decades.
Formula
PVC / uPVC Pipe Friction Loss Calculator is a free pvc / upvc 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 PVC / uPVC Pipe Friction Loss Calculator
Darcy–Weisbach head loss for water in pvc / upvc pipe (ε = 0.0015 mm) with auto friction factor. The calculation implements h_f = f·(L/D)·V²/2g with ε = 0.0015 mm (pvc / upvc), water 20 °C (Moody chart roughness values — Crane TP-410). Roughness 0.0015 mm: hydraulically smooth — friction stays near the smooth-pipe limit for decades.
How to use PVC / uPVC 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 PVC / uPVC Pipe Friction Loss Calculator?
- ✓Implements the standard formula — h_f = f·(L/D)·V²/2g with ε = 0.0015 mm (pvc / upvc), 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 PVC / uPVC Pipe Friction Loss Calculator use?+
It computes h_f = f·(L/D)·V²/2g with ε = 0.0015 mm (pvc / upvc), 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 0.0015 mm: hydraulically smooth — friction stays near the smooth-pipe limit for decades.
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 PVC / uPVC 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.
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