Engineering procurement carat tube, national standard quality winding tube

In municipal drainage, large-scale infrastructure and sponge city projects, carat pipe is the main pipe for large-diameter buried sewage discharge, and its procurement decision is directly related to the safety of the whole life cycle of the project. If the project purchaser wants to avoid the risk of later settlement and leakage, it must focus on the quality winding pipe produced in strict accordance with the national standard.

The core of the national standard quality is first reflected in the purity of the raw materials. Regular carat tubes use high-density polyethylene as the main substrate, and no excess recycled material is added. The pipe extruded from pure raw materials has a smooth inner wall like a mirror, and the friction coefficient is extremely low, which can significantly improve the efficiency of water flow transportation; and its excellent chemical stability can resist the erosion of acid-alkali soil and industrial wastewater for a long time, and eliminate the hidden danger of pipe wall brittleness from the source.

The process is the soul that determines the structural strength of the carat tube. The real national standard winding pipe adopts the hot winding forming technology, and the molten polyethylene strip and the waveform reinforcement rib are helically welded synchronously on the cylindrical steel mold. This seamless structure of the integrated molding makes the ring stiffness of the pipe stable to SN8, SN10 or even higher grades, without laminated peeling. When purchasing, the pipe port can be observed. If the section is dense and there are no pores, and the reinforcement rib and the pipe wall are fully integrated, it is a strong evidence of the maturity of the process.

The reliability of the connection method cannot be ignored either. The national standard carat pipe is usually connected by socket-type fused connection or throttle socket connection, and the interface strength is higher than that of the pipe body. Under the condition of uneven settlement of backfill soil, this flexible and tight interface can be adaptively deformed to maintain zero leakage. During acceptance, the engineering procurement personnel should randomly check the sealing ring material of the interface and the embedded accuracy of the fused element to ensure that each section of the pipeline can operate stably in a buried environment for decades.

In the final analysis, the project procurement carat pipe can not only focus on the unit price, but also understand the quality red line behind the national standard. From raw material ratio, waveform structure design to factory air tightness testing, every rigorous quality assurance data is a commitment to the long-term safety of the project. Choosing a truly standard quality winding pipe is to build an indestructible line of defense for the underground drainage network.