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HDPE double-wall corrugated drainage pipe

Manufactured from high-density polyethylene (HDPE), it features a double-wall structure with corrugated outer walls and smooth inner walls, providing excellent hydraulic transport performance while maintaining high ring stiffness.

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Product Introduction

HDPE double-wall corrugated drainage pipes are manufactured from high-density polyethylene (HDPE) and feature a dual-wall structure with a corrugated outer wall and a smooth inner wall, providing excellent hydraulic performance while ensuring high ring stiffness.

For mine drainage applications, this pipeline can be used for stormwater runoff management, underground water discharge from mine shafts, open-pit mine drainage, road drainage within the mining area, and other non‑pressurized drainage systems. HDPE material exhibits excellent corrosion resistance and chemical‑resistance properties, making it well suited to the humid, sediment‑laden, and complex subsurface conditions typical of mining environments.

The pipeline is lightweight, facilitating transportation and on-site installation, and is suitable for long-term underground applications in mine drainage systems.

Product Features

1. High ring stiffness
The corrugated structure enhances the pipe’s resistance to external loads, making it suitable for underground drainage applications in mining areas.

2. Excellent corrosion resistance
HDPE material exhibits excellent corrosion resistance, making it suitable for the humid and chemically complex conditions found in mining areas.

3. Smooth inner wall
The inner wall is smooth, resulting in low flow resistance, which helps enhance drainage efficiency and reduce sediment deposition.

4. Lightweight
The pipeline is lightweight, facilitating transportation, handling, and on-site installation in mining areas.

5. Easy installation
Pipeline connections and installation are convenient, which can enhance the efficiency of mine drainage system construction.

6. Good flexibility
It can accommodate a certain degree of foundation settlement and soil displacement, making it well-suited to the complex geological conditions of mining areas.

7. Excellent wear resistance
HDPE material exhibits excellent wear resistance, making it suitable for drainage applications involving sediment-laden water.

8. Adapting to Harsh Mining Environments
It can be used in a variety of drainage systems, including open-pit mines, underground mines, and mine‑site infrastructure.

9. Long-term stable operation
It exhibits excellent environmental resistance, making it suitable for long-term underground drainage applications.

10. Flexible specifications
Appropriate specifications can be selected based on the mine project’s pipe diameter, ring stiffness, burial depth, and drainage requirements.

Product Specifications

Parameter	Specifications
Product Name	HDPE double-wall corrugated drainage pipe
Material	High-density polyethylene (HDPE)
Structure	Corrugated outer wall + smooth inner wall
Nominal diameter	DN/ID 200–1200 mm*
Ring Stiffness Grade	SN4 / SN8 / SN12.5 / SN16*
Standard length	6 m / 9 m / 12 m*
Connection method	Socket connection / Sleeve connection / Rubber ring connection*
Color	Black / Customizable
Usage Type	Non-pressure drainage
Applicable medium	Rainwater, groundwater, mine drainage, etc.
Main applications	Open-pit mine drainage, underground mine drainage, mine‑site road drainage, stormwater discharge, and mine water management.

*Specific specifications can be determined based on project requirements.

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DN20–DN800mm full-range PE water supply pipes, HDPE double-wall corrugated pipes, and MPP electrical conduits—our inventory covers the entire spectrum of municipal engineering, building drainage, and communication network applications, with custom manufacturing available.

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Integrity is the foundation of who we are and the cornerstone of our company’s sustainable development. We trust and respect our customers, employees, suppliers, and other stakeholders. On this basis, we look forward to fostering long-term, mutually beneficial partnerships.

Professional Manufacturing

The factory campus covers over 300 mu and is equipped with more than 60 sets of international CNC‑controlled PE pipe production lines, boasting an annual capacity exceeding 100,000 tons. It also features 1,800 mm large‑diameter extrusion equipment, capable of meeting the demand for extra‑large‑diameter pipes. Complementing this are specialized laboratories and precision testing instruments, ensuring rigorous control over every stage of the production process.

Quality Control

We implement end-to-end quality management, adhere to standardized operating procedures, and strive for zero defects in our products. The company holds multiple certifications, including ISO 9001, ISO 14001, OHSAS 18001, and CE, and can support third-party testing by SGS, CIO, and other accredited bodies. Our products comply with pipeline standards in numerous countries.

Global Services

The company has established two major production bases in Shandong and Sichuan and built a professional international marketing team. Its products are exported to 112 countries, serving more than 500 key global projects, and the company boasts extensive experience in supplying, delivering, and providing ancillary services for large-scale domestic and overseas projects.

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Factory appearance and premises