Performance characteristics

1. Double-wall winding large-caliber plastic drainage pipe is a kind of high-density (HDPE) as raw material. It is wound into a spring-like structure through a special square pipe dimension, and melted and welded into a pipe under high pressure by a high-temperature electrode of the same material. The pipe has the characteristics of spring flexible, compressible, stretchable, and flattened. This is very important for municipal drainage pipes with basically no internal pressure and relatively large external pressure; because this structure provides the pipe with very excellent resistance to external pressure, the welding rod of the welded square pipe and the two walls of the square pipe form a I-beam-shaped reinforced structure, this structure is bound by the inner and outer double-layer walls, its position is relatively stable, the structure of the pipe is stable when the external pressure is applied, greatly improving the external load resistance of the pipe, the spiral hollow structural wall pipe's external pressure resistance is improved while reducing the weight of the product.

2. Chemical resistance: it is not eroded by acids, alkalis, and salts, is not eroded by organic matter, has no bacteria or algae growth, does not produce iron rust, and does not scale.

3. Long service life: the aging life of the material is more than 112 years, and the design life of the pipe is 50 years.

4. Strong impact resistance: it still has good impact performance below freezing point; it will not freeze and break due to water freezing, which is better than UPVC.PP and other material pipes.

5. Light weight: the density of polyethylene is less than 1, lighter than water, and only 1/8 of the concrete pipe of the same specification. It is easy to load, unload, transport, and install, and does not require large-scale hoisting and transportation equipment.

6. The water-sun coefficient is low 0-0078-00900, and the general design takes 001.Compared with 0013-0.014 pipes of the same caliber, the flow rate and flow rate of 0013-0.014 can be increased by 30%.

7. Good wear resistance and wear resistance are far better than concrete pipes and better than pipes such as UPVC.

8. Easy connection. The two-way socket elastic sealed connection is used, which is convenient, fast, safe and efficient. At the same time, it can be used as a telescopic joint to compensate for micro-expansion due to heat and cold. The thermal expansion coefficient of this pipe is 013-01 5mm/mk), uneven settlement and large load impact cause the longitudinal expansion and contraction of the pipe.

9. Environmentally friendly products: The products are 100% recyclable and do not pollute the environment.

10. The flat and flat pipe is easy to backfill, the construction is fast, and the quality is stable.

11. The comprehensive cost is low, the water resistance is small, the flow rate is large, and the ruler pair can be reduced to use pipes of small caliber. At the same time, the excavation volume is also reduced. No concrete foundation is required, and the sand and gravel cushion can be used. The project cost is low, and the service life of up to 50 years and the daily maintenance cost are low. The comprehensive cost can be comparable to that of concrete pipes.

Application area

The operating temperature of this product is -40C~60°C, and it can be used continuously for 50 years. The applicable areas are as follows：

1. Municipal engineering rainwater discharge, sewage discharge, factory drainage, and sewage discharge；

2. Drainage, sewage and exhaust of industrial and mining enterprises；

3. Highway.Railways, bridges, culverts；

4. Agricultural drainage and lowland irrigation；

5. Coal mine ventilation, post and telecommunications communication pipelines；

6. It is suitable for non-excavation pipeline construction, including drilling type jacking type. At present, our company can provide a wide range of pipelines with DN225-DN180 specifications.