200mm-800mm HDPE Double Wall Corrugated Pipe Large Diameter

HDPE Double-Wall Corrugated (Hollow-Wall) Winding Pipe is a structural wall pipe made from high-density polyethylene (HDPE) raw material, manufactured by a hot-state winding forming process. It complies with the requirements of the national standard "Buried Polyethylene (PE) Structural Wall Pipeline System" Part 2: "Polyethylene Winding Structural Wall Pipes" (GB/T19472.2-2004). This pipe is suitable for municipal drainage, building exterior drainage, buried farmland drainage and irrigation, industrial sewage discharge, road drainage, wastewater treatment plants, sports field and plaza drainage projects, as well as electrical and telecommunications engineering applications, where the conveyed water temperature is below 45°C. As HDPE Double-Wall (Hollow-Wall) Winding Pipe is a chemical building material, it holds significant importance for energy conservation, pollution reduction, and environmental protection.

1. Reliable and Safe Ring Stiffness — Compared with pure plastic pipes, the reinforced steel strips make the pipe, especially large-diameter pipes, possess sufficient and reliable ring stiffness.
2. Smooth Inner Wall, 20–30% Lower Flow Resistance than Cement Pipes — The polyethylene (PE) pipe has a smooth inner wall with a small friction coefficient. Sediments are not prone to accumulate inside the pipe, and the flow resistance remains almost unchanged after long-term use.
3. Flexible and Leak-Free (Electrofusion Welding, Butt Welding) Connections — Both sealing connection methods offer excellent sealing performance and environmental performance. They can be operated manually with simple tools without machinery, making them very convenient and fast, achieving reliable leak-free joints.
4. Corrosion-Resistant, Service Life Exceeds 50 Years — High-density polyethylene (PE) pipes can have a service life of up to fifty years.
5. Lightweight, Fewer Joints, No Heavy Equipment Required, Easy Installation — The pipe is lightweight and does not require large lifting equipment during installation. It offers excellent axial flexibility, with lower requirements for trench bottom flatness and firmness during laying. It has strong capacity to withstand abnormal stresses caused by improper installation.
6. On-Site Production, Greatly Reducing Transportation Costs — The strip material can be transported on reels (standard cable reels). The pipe winding equipment is simple and compact, making it easy for manufacturers to transport the equipment near the construction site for local winding production and supply, significantly reducing users' transportation costs.
7. Strong Resistance to Abnormal Sudden Loads — The pipe can dissipate resulting stresses through elastic deformation, preventing leakage or damage at pipe joints caused by excessive stress and deformation.
8. Competitive Overall Cost — Combining the advantages of both steel and plastic materials in one pipe, this product delivers outstanding comprehensive performance.