375mm corrugated HDPE stormwater pipe with an SN8 stiffness class, supplied in a nominal 6 metre straight length. It is designed for underground gravity stormwater drainage and water-conveyance systems used in civil, subdivision, commercial, industrial and infrastructure projects.
Manufactured from PE100 high-density polyethylene, the pipe has a corrugated external profile for underground strength and a smooth internal bore for efficient drainage flow. SN8 is the pipe’s stiffness class for underground installations, and the pipe is suited to non-pressure applications.
The 375mm measurement is the nominal pipe diameter, also identified as DN375. The supplied specifications list an approximate outside diameter of 425mm and an approximate internal diameter of 371mm.
The pipe has an approximate overall length of 6020mm and an effective installed length of approximately 5840mm after allowing for the socketed joint. Each length weighs approximately 55kg.
Pipe lengths are joined together using O-rings and lubricant, which are available with the pipe at no extra cost upon request. Each length of pipe has a socket for joining to another length of pipe.
Installation requirements should be confirmed for the project conditions, particularly beneath roads, construction equipment, railways or other heavily loaded areas. Installed performance depends on suitable trench preparation, bedding, backfill material, compaction, cover depth and expected external loading.
Prices given on this page are for supply within Western Australia. Please contact us if you require longer coils of this pipe, or if you would like availability and pricing outside WA.
Corrugated HDPE Pipe Brochure
Corrugated HDPE Pipe Backfill - Cement Stabilised
Corrugated HDPE Pipe Backfill - Sand & Coarse Grained Soils
Corrugated HDPE Pipe Jointing Instructions
| Nominal Diameter (DN) | Outside Diameter (mm) | Inside Diameter (mm) | Stiffness Class (SN) | Jointing Method | Approx. Weight (KG) |
| 225 | 257 | 223 | 8 | Rubber Ring (RRJ) | 22 |
| 300 | 339 | 294 | 8 | Rubber Ring (RRJ) | 38 |
| 375 | 425 | 371 | 8 | Rubber Ring (RRJ) | 55 |
| 450 | 508 | 438 | 8 | Rubber Ring (RRJ) | 83 |
| 525 | 595 | 514 | 8 | Rubber Ring (RRJ) | 110 |
| 600 | 672 | 591 | 8 | Rubber Ring (RRJ) | 146 |
| 750 | 825 | 731 | 8 | Rubber Ring (RRJ) | 222 |
| 900 | 995 | 869 | 8 | Rubber Ring (RRJ) | 253 |
