HDPE spiral wound structural wall pipe

1. High quality of hot winding weld The flat material strip and U-shaped material strip in a molten state extruded from the extruder die are evenly wound on the heated roller mold according to the predetermined position, ensuring the quality of the weld seam of the structural wall pipe. In particular, the weld seam of the flat material strip in the structural design is covered by the polyethylene-coated support pipe, which improves the overall resistance to external pressure of the product.

2. Excellent installation performance The pipe connection adopts the socket-embedded electric fuse and the same material socket electric fusion connection technology, and the connection quality is high. It can achieve 100% leakage-free, ensuring the same life of the pipeline system and the safety of operation. At the same time, because the product is lighter than other pipes under the same application conditions, it is easy to transport, convenient and quick to construct, and can reduce construction costs. In the application range, it does not require concrete cushion and concrete pipe foundation trenches. After qualified, the pipe can be directly laid. Basically, it can be done while excavating, laying pipes, and backfilling, which simplifies the construction procedure and shortens the construction period. During project acceptance, air-tightness test is used instead of water-tightness test, which not only speeds up the acceptance, but also saves the complicated work and a lot of testing costs in water-tightness test.

Carat pipe is a hot-wound high-density polyethylene (HDPE) winding structural wall pipe. The product uses high-density polyethylene resin (HDPE) as raw material, PP or PE corrugated pipe as auxiliary support pipe, and adopts hot winding molding process to produce high-density polyethylene large-diameter winding reinforced pipe. Because this kind of pipe was originally introduced by domestic companies from the German Carat Company, it is commonly known as Carat pipe in China. This product is an environmentally friendly and safe product with the advantages of light weight, strong pressure bearing capacity, high interface quality, long life, corrosion resistance, high ring stiffness, and convenient construction. It is widely used in urban water supply, drainage, long-distance water delivery, and farmland irrigation projects. The pipe is light in weight and has good overall flexibility. It is currently the preferred main pipe for buried sewage and drainage. Carat pipe products can be divided into four series: PR, OP, SQ, and VW. Among them: PR and OP are mainly used as buried drainage pipes, SQ is mainly used to manufacture containers or manholes, and VW is mainly used for tees, elbows, and secondary processing pipe fittings. The most widely used product is the PR series, which has a smooth inner surface and a special-shaped reinforced structure on the outside. The standard length of the pipe is 6 meters, and the inner diameter ranges from DN300 to DN4000. The product indicators all meet the requirements of GB/T 19472. 2-2017 B-type structural wall pipe standard and EN-13476 European standard.

HDPE spiral wound structural wall pipe

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