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Characteristics of corrugated pipes: Strong resistance to external pressure: The outer wall features a ring-shaped corrugated structure, significantly enhancing the pipe’s ring stiffness and thereby improving its ability to withstand soil loads. Performance aspects: Compared with other types of pipes, HDPE double-wall corrugated pipes offer distinct advantages. Due to their lightweight nature, these pipes are easy to handle and connect, making construction quick and maintenance straightforward. These advantages become even more pronounced under tight schedules and challenging construction conditions. When made from HDPE, double-wall corrugated pipes can convey larger flows than other pipes of the same diameter—meaning that, for the same flow rate requirement, pipes made from HDPE can have a smaller diameter. They also exhibit a low friction coefficient, allowing for greater flow rates. Additionally, they demonstrate excellent resistance to low temperatures and impact. The embrittlement temperature of HDPE double-wall corrugated pipes is -70°C. Under typical low-temperature conditions (above -30°C), no special protective measures are required during installation, making winter construction particularly convenient. Moreover, HDPE double-wall corrugated pipes possess outstanding impact resistance.
Introduction to PE Pipe Products Polyethylene, abbreviated as PE in English, is a thermoplastic resin produced by the polymerization of ethylene monomers. PE pipes for gas applications represent a replacement for traditional steel and polyvinyl chloride (PVC) gas pipes. PE resin is synthesized through the polymerization of ethylene monomers. Due to variations in polymerization conditions—such as pressure and temperature—the density of PE resin differs, resulting in three main types: high-density polyethylene (HDPE), medium-density polyethylene (MDPE), and low-density polyethylene (LDPE). When processing different types of PE pipes, it is essential to select the appropriate resin grade based on the specific application requirements. Additionally, the requirements for extruders and molds vary accordingly. In the plastic pipe industry, PE pipes, PP-R pipes, and UPVC pipes all hold significant positions; among these, PE pipes enjoy a wide range of applications. Among them, PE water supply pipes and PE gas pipes are the two largest markets for PE pipes.
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