China wholesale Corrugated Pipe - Double-wall plastic corrugated pipe – Beihai

Double-wall corrugated pipe: it is a new type of pipe with annular outer wall and smooth inner wall. It is mainly used for large-scale water delivery, water supply, drainage, sewage discharge, exhaust, subway ventilation, mine ventilation, farmland irrigation and so on with working pressure below 0.6MPa. The inner wall color of double-wall bellows is usually blue and black, and some brands will use yellow.

Double-wall plastic corrugated pipe
It is made of “HDPE (high-density polyethylene) corrugated pipe”, “PVC-U (hard polyvinyl chloride) corrugated pipe”, “PP (polypropylene) corrugated pipe”, etc. as the main raw materials. , The external extruder co-extrudes, one-time molding, the inner wall is smooth, the outer wall is corrugated, and there is a hollow layer of plastic pipe between the inner and outer walls.

Features of plastic corrugated pipes :
1. Unique structure, high strength, compression and impact resistance.
2. the connection is convenient, the joint is well sealed, and there is no leakage.
3. light weight, quick construction and lower cost.
4. The buried service life is more than 50 years.
5. Polyethylene is a hydrocarbon polymer with non-polar molecules and resistant to acid and alkali corrosion.
6. The raw materials are green environmental protection materials, non-toxic, non-corrosive, non-scaling, and can be recycled and used.
7. The use temperature range is wide, the pipe will not break in the environment of -60℃, and the temperature of the conveying medium is 60℃.
8. The comprehensive project cost is basically the same as that of the concrete, and the operating cost is low.
9. No foundation is needed if the soil quality is good.

Application:
Plastic corrugated pipes are widely used in many areas as below
1. Drainage and ventilation pipes for mines and buildings;
2. Municipal engineering, underground drainage and sewage pipelines in residential quarters;
3. Irrigation and drainage of farmland water conservancy; drainage pipes for sewage treatment plants and garbage disposal sites;
4. Chemical ventilation pipes and chemical and mining fluid conveying pipes;
5. The overall processing of pipeline inspection wells; high-speed kilometers of pre-buried pipelines;
6. high-voltage cables, post and telecommunications cable protection sleeves, etc.

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