Structural Advantages
Wavy exterior wallEnhanced pipeline resistance to external pressure (such as soil loads), saving materials compared to straight pipes under the same diameter.
Smooth inner wallReduce fluid resistance, enhance drainage or ventilation efficiency.
Punched designHole diameters are typically 5~15mm, used for penetration, filtration, or ventilation (such as allowing water or gas to pass through in drainage systems while blocking silt and sand).
Material characteristics
Corrosion resistanceHDPE is highly chemically stable, resistant to acids and alkalis, and corrosion, suitable for complex soil environments.
FlexibilityCan bend moderately, accommodating slight geological settlement, and reducing the risk of interface leakage.
LightweightEasy for transportation and installation, reducing construction costs.
Long service lifeOperation life span exceeds 50 years under normal conditions.
Specs and Parameters
Pipe diameterCommon DN110~DN800mm (nominal outside diameter), available for customization as required.
Ring StiffnessCommonly used values include 4kN/m², 8kN/m², etc., with higher numbers indicating greater resistance to external pressure.
Hole Pattern and Hole PercentageHole shapes: round, elongated, or slotted. The hole percentage (area ratio of the holes) is typically 5% to 15%, adjustable according to the application scenario.
Wastewater Drainage and Treatment
Municipal DrainageRainwater collection systems and sewage discharge pipelines, especially suitable for permeable scenarios (such as green belts,渗water pipes under parking lots).
Wastewater Treatment PlantAs an aeration pipe or sludge discharge pipe, utilize the perforated design for even gas distribution or filtration.
Agricultural and Landscape Engineering
Agricultural DrainageField渗水管, removes excess moisture, prevents crop waterlogging.
Landscape GardeningLandscaping pond drainage, garden bed aeration pipes, or as auxiliary pipes for drip irrigation systems.
Communication and Power Engineering
Cable protection conduitHoled design assists in cable heat dissipation or is used for ventilation and moisture prevention in communication conduits.
Building foundation drainage
Basement drainageLaid around the foundation, it collects groundwater and drains through perforations to reduce the risk of water accumulation around the base.
Roof drainageAs a branch pipe of the siphon drainage system, it combines with the filter layer to achieve rainwater collection and discharge.
Pipe connections
Socket and spigot jointSuitable for pipeline, rubber seal gasket sealing, easy to operate.
Hot Melt WeldingLarge diameter pipes are joined using heat-fused or electric-fused connections to ensure interface strength.
Flange connectionFor special applications (such as connections to pump stations or valves), flanges are used for securing.
Basic processing
Before laying, the trench must be leveled. The base should use a sand bedding layer (thickness ≥100mm) to prevent direct contact between hard objects and the pipeline.
If soft soil foundation is encountered, replacement or reinforcement is required to prevent pipeline settlement and breakage.
Anti-clogging and filtration
Application ScenarioWhen used for drainage and infiltration, the outer side of the pipe should be wrapped with a permeable geotextile (such as polyester fiber cloth) to prevent silt and sand from entering the holes and blocking the pipe.
Construction sequencePipe installation → Wrap with geotextile → Backfill with coarse sand or gravel layer → Top layer backfill soil.
Fill-in Requirements
Backfill material must be compacted in layers. Manual backfill is required within a 500mm range on both sides of the pipeline to avoid direct compaction by machinery.
No backfilling of construction waste, frozen soil, or large stone blocks is permitted.
| Advantages | Limitations |
|---|---|
| Corrosion-resistant, aging-resistant, and maintenance-free. | Poor heat resistance (service temperature ≤ 45℃ for long-term use). |
| 2. Drilled design enhances penetration/ventilation efficiency. | 2. Limited hoop stiffness; not suitable for high-pressure environments (e.g., for heavy vehicle traffic areas, high-stiffness piping materials should be selected). |
| 3. Easy installation with non-excavation option. | 3. High requirements for the flatness of the construction trench; otherwise, it may affect the drainage effect of the holes. |
| 4. Eco-friendly and recyclable, meets building material standards. |
Domestic Standards
"Part 1: Polyethylene (PE) Double-Wall Corrugated Pipe for Burial Use" (GB/T 19472.1)
"Code for Technical Specifications on the Application of Plastic Drainage Inspection Wells (CJJ/T 209)"
Hole parameters (hole diameter, pitch, and opening rate) must comply with design drawings or industry standards.
Inspection Criteria
Ring StiffnessTest the pipeline's resistance to external pressure deformation.
Impact ResistanceTest the toughness of pipe material against external impact.
Sealability: Test or leak tightness test to ensure no leakage.
Hole qualityCheck the uniformity of hole positions and ensure edges are smooth (to prevent burrs from piercing the geotextile).
Specific usage requirementsSelect the appropriate pipe diameter and ring stiffness based on drainage flow rate, soil cover depth, and soil type.
Focus on production processSelect products with smooth inner walls, even corrugations, and burr-free holes to avoid the impact of inferior raw materials (such as recycled materials) on performance.
QualityPlease ensure the manufacturer provides quality products with compliance, focusing on environmental stiffness, tensile strength, and other relevant indicators.
Supplementary MaterialsPre-purchase the necessary seals, geotextiles, and manholes to ensure system integrity.
<div style="-webkit-font-smoothing:antialiased;box-sizing:border-box;-webkit-tap-highlight-color:rgba(0, 0, 0, 0);line-height:28px;overflow-anchor:auto;font-size:16px;font-family:inter, -apple-system, blinkmacsystemfont, "text-wrap-mode:wrap;background-color:#ffffff;color:rgba(0, 0, 0, 0.85) !imHDPE perforated corrugated pipes are widely used in municipal, agricultural, and construction sectors due to their drainage, maintenance, and environmental adaptability, especially suitable for non-high-pressure scenarios requiring permeability or aeration.
