winter in the north, low temperatures of minus ten or even tens of degrees are the "ultimate test" for municipal pipelines and community water supply and heating systems - traditional PE pipes often become brittle at low temperatures, crack or even break, resulting in water and heating stoppages, road excavation and maintenance, which brings many troubles to residents' lives and engineering operation and maintenance. As a senior brand in the field of plastic pipes, AD Pipeline has upgraded the technology of PE coil pipes for the characteristics of the northern climate, and solved this "winter pain point" for northern users with better low temperature crack resistance.

The core problem of traditional PE pipes is that when the temperature drops below 0 ° C, the molecular chain activity of polyethylene materials decreases, and the toughness and impact resistance decrease accordingly. Once it encounters frost heaving pressure or external impact, it is easy to brittle and crack. To solve this problem, AD Pipe has a two-pronged approach from the material formula and production process: in the material, high-fluidity high-density polyethylene resin is selected as the base material, and self-developed low-temperature toughening agent is added. By adjusting the branching structure of the molecular chain, the material can still maintain good flexibility at low temperature; in the process, the same-direction twin-screw extrusion equipment imported from Germany is used, and the precise temperature control system is used to ensure that the material is mixed more evenly and the wall thickness tolerance is controlled within 0.1mm, which further enhances the overall crack resistance of the pipeline.

The upgraded AD PE coil pipe has been strictly tested by a third-party testing agency: in a low temperature environment of -40 ° C, the drop weight impact test has a no-damage rate of 100% (far exceeding the industry standard of 80%), and the elongation at break is more than 50% higher than that of traditional PE pipes. Even in the event of frost heave or external force collision in winter, it can effectively resist crack propagation. This performance has allowed it to be actually verified in the northern market - last winter, a municipal water supply renovation project in a county in Hebei adopted AD PE coil pipe, covering 1200 households in 3 old residential areas. The minimum temperature in the whole winter reached -18 ° C, but there was no frost cracking accident in all pipelines. Compared with previous years, the maintenance rate of traditional PE pipes has dropped by 90%, which greatly reduces the operation and maintenance pressure of municipal departments.

In addition to municipal water supply, AD low-temperature crack-resistant PE coils are also suitable for central heating in the north, safe drinking water in rural areas, and municipal pipe networks in parks. For example, the heating pipe renovation of an industrial park in Northeast China, after using AD PE coils, not only solved the heating interruption problem caused by freezing and cracking pipes in the past winter, but also reduced the use of elbows during installation and shortened the construction period due to the improvement of the flexibility of the pipes.

For northern users, the "winter viability" of pipelines is directly related to the convenience of life and the reliability of the project. Through technical iteration, AD Pipeline has achieved the "accuracy" of the low temperature crack resistance of PE coils to adapt to the northern climate - not simply to improve a certain indicator, but to systematically optimize from material to process, so that the pipeline can still maintain stable performance in cold environments. This "user request-oriented" technology upgrade not only solves the pain points of traditional PE pipes, but also makes AD Pipeline the representative choice of "winter reliable pipes" in the northern market.

In the future, AD Pipeline will continue to focus on the special needs of the northern climate, such as long-term weather resistance under extreme low temperatures, compatibility with thermal insulation materials, etc., to further optimize the performance of PE coils and provide more solid pipeline protection for infrastructure buildings and residents' lives in the north.