Steel strip pipes are made of U-shaped steel strip and composite PE material, enhancing hoop stiffness without increasing costs, and are superior to spiral-wound pipes and KRAH pipes in terms of weight. They can address heavy load issues and more. The large diameter production pipes range from DN300mm to DN2400mm, maintaining hoop stiffness above 8KN/m2, and are lighter than concrete pipes and other plastic pipes.

Characteristics of steel strip pipes:

1. Resistant to contamination, waste water, and chemical corrosion; not prone to degradation due to decomposing matter in the soil.

2. The pipe wall is designed with a "U"-shaped structure, making it resistant to cracking even in cases of ground subsidence. Additionally, it boasts excellent recovery after deformation and great adaptability to various soil conditions.

3. Pipes are typically black, capable of withstanding direct sunlight exposure during storage and construction.

4. Pipe materials are not prone to cracking and leaking due to expansion in -60℃ environments.

5. Lightweight: Easy to transport and install; only 1/8 the weight of cement pipes, installation requires only an excavator, no large machinery needed.

6. Easy to connect; pipes can be assembled outside the trench and then pushed into place by an excavator, reducing engineering time and costs.

7. Excellent waste water sludge transport capability.

8. Smooth interior, reducing friction, and fast drainage speed.

9. Low construction, management, and maintenance costs.

10. The round external rebar structure of the pipe not only enhances the hoop stiffness of the pipe but also serves as a root restraint, addressing the tension and well-capping issues caused by longitudinal displacement of the pipeline.

11. Due to the elastic modulus ratio of steel and plastic materials exceeding 200 and the weight ratio exceeding 7.85, steel strip-reinforced pipes (especially large diameter pipes) are more likely to have hoop stiffness and stiffness-to-weight ratios compared to pure plastic pipes.