HDPE drainage pipes are extruded from high-quality HDPE resin, featuring excellent ring stiffness, impact resistance and chemical resistance for long-term conveyance of domestic sewage, industrial wastewater, stormwater and mildly corrosive fluids. The lightweight structure — approximately 1/8 the weight of concrete pipes — enables easy handling and installation without heavy machinery, significantly reducing construction time and cost.
The smooth inner wall provides superior hydraulic performance, resisting fouling and clogging. The pipe is resistant to low temperatures, weathering and soil corrosion, maintaining structural integrity in harsh underground environments. Jointing methods include butt fusion and push-fit rubber ring connections, suitable for open-trench and shallow-buried installation.

It is extensively used in residential stormwater and sewage drainage, municipal road drainage systems, industrial park effluent discharge, airport and rail transit drainage, agricultural drainage and landfill leachate collection.

Notes on pipelines：

1. Select pipe specifications and ring stiffness according to design flow, buried depth and ground load; do not use pipes with insufficient rigidity to avoid deformation and collapse under soil pressure.

2. Keep a uniform drainage slope (generally 0.002-0.005) during installation, ensure no reverse slope, prevent sewage sedimentation and pipeline blockage.

3. During handling and installation, no violent throwing, dragging or rolling is allowed to protect the pipe body from mechanical damage.

4. For rubber ring socket connection, check the rubber ring for damage, distortion or aging, install it in place without deviation, and ensure sealing performance to prevent sewage leakage.

5. Backfill construction must be symmetrically filled on both sides of the pipeline, layered tamping; prohibit one-sided backfill or direct dumping of large-grain soil and stones to avoid pipe deviation and deformation.

6. Avoid contact with strong chemical solvents during use, prevent material corrosion and performance degradation; clean the pipeline regularly to remove sediment and blockages.