The 5 Most Common Pipe Selection Mistakes
- 1. Using non-pressure pipe in pressurised lines: Corrugated pipe is for gravity lines; use PE100 for pressurised systems.
- 2. Underestimating the SN class: SN8 may be mandatory instead of SN4 for road crossings.
- 3. Wrong material: Only yellow PE80/PE100 gas-certified pipe is used for natural gas.
- 4. Selecting diameter without calculation: Small diameter = high friction loss → pump inefficiency.
- 5. Ignoring standards: Each application area is subject to different standards (TSE, EN, ISO).
Quick Decision Guide
- Drinking water pressurised line → PE100 PN10 or PN16
- Sewage / stormwater → Corrugated SN8
- Natural gas → PE80 yellow
- Building hot/cold water → PPRC PN20
- Building waste water → PVC Waste
- Large diameter collector → FKS Spiral HDPE