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Product Introduction of HDPE Double Wall Corrugated Pipe

Le Tuyau ondulé double paroi en PEHD is a new type of lightweight structural wall pipe manufactured from high-density polyethylene (HDPE). It is designed with a dual-layer structure, combining a smooth inner wall for efficient flow and a corrugated outer wall for enhanced mechanical strength. This structure provides an optimal balance of performance, cost efficiency, and long service life.

The HDPE Double Wall Corrugated Pipe is widely recognized for its light weight, high pressure resistance, excellent toughness, fast installation efficiency, and long operational lifespan. Its advanced structural wall design significantly reduces material consumption and overall project cost compared to traditional pipe systems. Due to its reliable connection system and ease of installation, it is widely used in municipal, industrial, and infrastructure projects, gradually replacing conventional concrete and cast iron pipelines in many applications.

Standards and Specifications of HDPE Double Wall Corrugated Pipe

The HDPE Double Wall Corrugated Pipe is manufactured in strict accordance with GB 19472.1-2019 “Buried Polyethylene (PE) Structural Wall Piping Systems” to ensure consistent quality and performance.

Key specification details include:

• Ring stiffness grades: SN4, SN8, SN10, SN12.5
• Standard color: black (customizable upon agreement between supplier and buyer)
• Inner diameter range: ID200 to ID1200

These standardized classifications ensure the HDPE Double Wall Corrugated Pipe meets the requirements of different load-bearing conditions and engineering applications.

Structure and Manufacturing Process

The HDPE Double Wall Corrugated Pipe is produced using advanced CNC-controlled automated production lines, ensuring high precision and stable quality output. The manufacturing process includes several key features:

• Fully automated production system reduces manual labor intensity
• Extrusion temperature control accuracy within ±1℃ ensures consistent material performance
• Flexible mold system allows a wide range of pipe diameters with easy mold replacement
• Integrated cooling, heating, and lubrication systems improve production stability
• Low-torque rotation design prevents production interruptions
• Vacuum forming technology ensures stable inner and outer diameter accuracy
• Adjustable wall thickness design allows customization based on project requirements

This advanced production system ensures that each HDPE Double Wall Corrugated Pipe meets strict dimensional and performance requirements.

Avantages de performance du tuyau ondulé à double paroi en PEHD

Résistance à la charge externe élevée

The corrugated outer structure significantly enhances ring stiffness, improving the pipe’s ability to withstand soil loads and external pressure. This makes the HDPE Double Wall Corrugated Pipe highly suitable for buried pipeline systems.

Long Service Life and Wear Resistance

Under non-exposed conditions, such as protection from UV radiation, the service life can exceed 50 years. The material demonstrates excellent wear resistance, outperforming traditional steel pipes in abrasion resistance under tested conditions.

Excellent Low-Temperature Impact Performance

The HDPE Double Wall Corrugated Pipe maintains structural integrity at extremely low temperatures, with a brittleness temperature of -70℃. Construction can generally proceed without special protective measures in temperatures above -30℃.

Strong Chemical Stability

The pipe exhibits excellent resistance to most chemical media except strong oxidizing agents. It is not affected by soil acidity or alkalinity and does not support bacterial growth or scaling, ensuring stable flow capacity over long-term use.

High Flow Efficiency with Low Friction Resistance

The smooth inner wall reduces flow resistance, allowing higher flow capacity compared to conventional pipes of the same diameter. This enables engineers to select smaller diameter HDPE Double Wall Corrugated Pipe while maintaining required flow performance.

Spécifications et modèles de tuyaux :

Zones d'application du tuyau ondulé à double paroi en PEHD

Systèmes d'ingénierie municipaux

The HDPE Double Wall Corrugated Pipe is widely used in urban infrastructure for drainage, sewage discharge, rainwater collection systems, water supply networks, and ventilation pipelines.

Electrical and Telecommunication Protection

It is commonly used as protective conduits for power cables, optical fiber cables, and communication signal transmission systems, ensuring safe and durable underground installation.

Industrial and Agricultural Applications

Due to its excellent corrosion resistance, the HDPE Double Wall Corrugated Pipe is suitable for irrigation and drainage systems in farmland, orchards, tea plantations, and forestry zones, as well as industrial fluid transport environments.

Transportation and Public Infrastructure

The pipe is widely applied in railway, highway, golf course, and sports field drainage systems, including seepage and subsurface water management solutions.