Hard Permeable Pipe is a high-performance underground drainage pipe designed to provide rapid water collection, filtration, and discharge for modern infrastructure construction. The product is commonly known as a drainage blind pipe, perforated drainage pipe, or corrugated permeable pipe.

Manufactured from premium HDPE material, the pipe combines flexibility, compressive strength, and excellent hydraulic conductivity. The pipe wall adopts a corrugated reinforced design that improves structural rigidity while maintaining flexibility for easy installation.

The upper part of the pipe contains precision drainage holes that allow groundwater to enter quickly. The lower solid section prevents water leakage and helps transport collected water efficiently toward drainage outlets.

Compared with traditional stone blind ditch systems, Flexible Permeable Pipe products provide lower construction costs, higher drainage efficiency, reduced maintenance, and longer service life.

The product is widely applied in highway drainage, railway projects, retaining wall drainage systems, tunnel engineering, slope stabilization, airport foundations, and landfill seepage systems.

Its semi-perforated structure provides efficient water collection while preventing secondary leakage and maintaining long-term drainage performance.

Yes. Filter fabric wrapping is optional and helps prevent sediment entering the drainage system.

Yes. HDPE material maintains flexibility and impact resistance even in low-temperature environments.

The pipe is usually laid inside gravel trenches or behind retaining walls with proper slope drainage design.

Highways, railways, tunnels, airports, retaining walls, landfills, sports fields, and landscaping drainage systems.