75 mm HDPE Pipe
Catalogue specifications for 75 mm polyethylene pipe.
Published
75 mm HDPE pipe means pipe with a 75 mm outside diameter. That figure alone does not define an order — at this diameter the factory produces 11 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 75 mm, wall thickness ranges from 1.8 to 12.5 mm and nominal pressure from 2.5 to 25 bar, depending on the SDR and on whether the material is PE80 or PE100.
Pressure classes available at this diameter
75 mm outside diameter — wall thickness by SDR
| SDR 51 | Wall thickness 1.8 mm — nominal pressure 2.5 bar in PE80, 3.2 bar in PE100 |
|---|---|
| SDR 41 | Wall thickness 2 mm — nominal pressure 3.2 bar in PE80, 4 bar in PE100 |
| SDR 33 | Wall thickness 2.3 mm — nominal pressure 4 bar in PE80, 5 bar in PE100 |
| SDR 26 | Wall thickness 2.9 mm — nominal pressure 5 bar in PE80, 6 bar in PE100 |
| SDR 21 | Wall thickness 3.6 mm — nominal pressure 6 bar in PE80, 8 bar in PE100 |
| SDR 17 | Wall thickness 4.5 mm — nominal pressure 8 bar in PE80, 10 bar in PE100 |
| SDR 13.6 | Wall thickness 5.6 mm — nominal pressure 10 bar in PE80, 12.5 bar in PE100 |
| SDR 11 | Wall thickness 6.8 mm — nominal pressure 12.5 bar in PE80, 16 bar in PE100 |
| SDR 9 | Wall thickness 8.4 mm — nominal pressure 16 bar in PE80, 20 bar in PE100 |
| SDR 7.4 | Wall thickness 10.3 mm — nominal pressure 20 bar in PE80, 25 bar in PE100 |
| SDR 6 | Wall thickness 12.5 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.
Supply form
- SDR 21 (6 bar): coils of 100 m
- SDR 17 (8 bar): coils of 100 m
- SDR 13.6 (10 bar): coils of 100 m
- SDR 9, 7.4, 6 (16, 20, 25 bar): coils of 100 m
- SDR 26 (5 bar): straight lengths of 12 m
What to state when ordering
- Outside diameter: 75 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 75 mm HDPE pipe have?
- It depends on the pressure class. At 75 mm the catalogue offers 11 classes, from SDR 51 at 1.8 mm to SDR 6 at 12.5 mm. Without an SDR, the wall thickness is undefined.
- What is the pressure rating of 75 mm pipe?
- From 2.5 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 75 mm supplied in coils or straight lengths?
- Both, depending on the pressure class. The lighter classes at this diameter come in coils and the heavier ones in 12 m straight lengths.
- How is 75 mm HDPE pipe priced?
- By weight, not by the metre. Weight per metre follows from diameter, wall thickness and material density — which is why 75 mm costs differently in each SDR. Quote the diameter, SDR and quantity to get a current price.