Extruded from HDPE with precise molding, the smooth inner wall enables smooth cable pulling, adapting to trenchless pipe pulling and complex foundation settlement. Widely used for municipal underground communication, real estate & park weak current supporting, dedicated trenchless projects and indoor & outdoor embedded wiring.
| Item | Technical Index | Remarks |
| Executive Standard | YD/T 841.2-2024 | Complies with national standard |
| Ring Stiffness Grade | SN8/SN12.5/SN16 | Select based on working conditions |
| Nominal Outer Diameter | DN20-DN200 | Select based on burial depth |
| Connection Method | Hot melt / Electrofusion / Socket joint (small diameter) | Ensure tightness |
| Standard Length | 6 m / 12 m per piece, coiled for pipes ≤DN63mm | - |
A: Cannot be used as high-voltage power pipe, nor replace carbon corrugated pipe for community weak current projects.
A: Check soil adaptability, conduct underground pit exploration and ensure stable mud wall protection.
A: Allowed for concealed installation inside bridge frames or pipe galleries without long-term sun exposure