16 mm HDPE Pipe
Catalogue specifications for 16 mm polyethylene pipe.
Published
16 mm HDPE pipe means pipe with a 16 mm outside diameter. That figure alone does not define an order — at this diameter the factory produces 3 different pressure classes, which differ in wall thickness and therefore in bore, weight and price. What completes an order is the diameter plus the SDR and the material grade.
At 16 mm, wall thickness ranges from 2 to 3 mm and nominal pressure from 16 to 25 bar, depending on the SDR and on whether the material is PE80 or PE100.
Pressure classes available at this diameter
16 mm outside diameter — wall thickness by SDR
| SDR 9 | Wall thickness 2 mm — nominal pressure 16 bar in PE80, 20 bar in PE100 |
|---|---|
| SDR 7.4 | Wall thickness 2.3 mm — nominal pressure 20 bar in PE80, 25 bar in PE100 |
| SDR 6 | Wall thickness 3 mm — nominal pressure 25 bar in PE80 (the catalogue states no PE100 figure) |
Figures from the factory catalogue (DIN 8074 / ISO 4427-2). A lower SDR means a thicker wall, a higher pressure rating and a smaller bore.
The nominal pressure figure applies at 20 °C. If the line runs warmer, the real allowable pressure is lower and has to be calculated with the temperature derating factor.
This diameter in irrigation
16 mm also appears in the catalogue's drip irrigation table (ISO 8779), in PE32 and PE40 grades at lower pressure classes. That is not the same product as pressure water pipe.
What to state when ordering
- Outside diameter: 16 mm
- SDR or nominal pressure — without it the enquiry cannot be priced
- Material grade: PE80 or PE100
- Application: water supply, gas, irrigation, sewerage or industrial
- Length, supply form and delivery destination
FAQ
- What wall thickness does 16 mm HDPE pipe have?
- It depends on the pressure class. At 16 mm the catalogue offers 3 classes, from SDR 9 at 2 mm to SDR 6 at 3 mm. Without an SDR, the wall thickness is undefined.
- What is the pressure rating of 16 mm pipe?
- From 16 to 25 bar, depending on the SDR and material grade. Those figures apply at 20 °C; above that they must be corrected with the temperature derating factor.
- Is 16 mm supplied in coils or straight lengths?
- In 12 m straight lengths; at this wall thickness the pipe cannot be coiled.
- How is 16 mm HDPE pipe priced?
- By weight, not by the metre. Weight per metre follows from diameter, wall thickness and material density — which is why 16 mm costs differently in each SDR. Quote the diameter, SDR and quantity to get a current price.