HPPE Pipe Diameter (mm) | Wall Thickness (mm) | Internal Diameter (mm) | For ductile iron pipes, diameter nominal (DN) was taken to be equal to internal diameter, as per manufacturers specification |
125 | 11.36 | 102.28 | |
225 | 20.45 | 184.10 | |
355 | 32.27 | 290.46 |