产品适用  APPLICABLE

       MPP double wall corrugated pipe is mainly used in urban and rural open excavation cable duct works for high-voltage transmission lines and cables above 10kV. The ordinary type is suitable for laying under sidewalks and green belts, and the standard type is suitable for laying across roads. If the requirements for seismic and compressive use are strict or steel pipes are used to cross bridges, reinforced (sn50) special customized products can be selected.

性能特点  FEATURES

1. High cost performance: MPP double wall corrugated pipe is made of modified polypropylene, which is the lightest material among all buried pipes at present. On the premise that the pipes achieve the same performance, less materials can be put in to save material costs. Compared with MPP pipes with the same ring stiffness requirements, the material cost should be saved by 40% - 70%.

2. Good rigidity: MPP double wall corrugated pipe has high ring stiffness because of its special material with high elastic modulus, which is three times higher than that of ordinary PVC corrugated pipe. Under the working condition without special requirements, the outside of the pipe does not need to be sealed with cement during construction, and it can be directly backfilled with pipe pillow and fine sand, which greatly reduces the construction dust and reduces the construction cost.

3. Smooth: the inner and outer surfaces of MPP double wall bellows are smooth and the friction coefficient is low; The drag resistance is small, which reduces the construction difficulty.

4. Bendable: the unique corrugated structure of MPP double wall corrugated pipe makes it have better flexibility, which can adapt to the ground settlement or the change of construction foundation, and ensure the normal protection effect of the pipe on the cable.

5. Heat resistance: the main material of MPP double break bellows is modified polypropylene, and the softening temperature of Vicat is above 120 ℃, so it can still maintain good resistance to external pressure at a higher temperature. It is suitable for use as a protective sleeve of high-voltage power lines to ensure that the cable can be safely used even when it is heated.

6. Low temperature resistance: MPP double wall corrugated pipe has better low-temperature impact resistance. It has better impact resistance when it is subjected to accidental impact at lower temperatures during construction or use in the south.

7. Insulation: the main material of MPP double wall bellows is modified polypropylene, which is non-conductive and non heat transfer, has good insulation performance, and meets the requirements for safe use of high-voltage power.

8. Corrosion resistance: the main material of MPP double wall corrugated pipe is modified polypropylene, which has the advantages of corrosion resistance and acid-base resistance. There is no acid-base neutralization corrosion of glass steel pipe or acid-base corrosion of metal pipe, and the service life can be as long as 50 years.

9. Sealability: MPP double wall bellows can be connected by hot-melt connection and special clamp. The former is wave crest butt welding sealing, and the latter is elastic sealing. There is no welding seam or flash of other pipes, so it will not scratch the cable or cut the cable in dragging.

10. Environmental protection: the main material of MPP double corrugated pipe is modified polypropylene, which is mainly composed of carbon and hydrogen. It is hygienic and environmental friendly. Pipe waste can be recycled. There is no white pollution in the production and recycling process.

性能指标  PERFORMANCE