HDPE Double-Wall Corrugated Drainage Pipe

HDPE double-walled corrugated pipe is a new type of pipe with an annular structured outer wall and a smooth inner wall, first successfully developed in Germany in the early 1980s. After more than a decade of development and improvement, it has evolved from a single variety to a complete product series. The production technology and application techniques are now very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and America. The double-walled corrugated pipe, made from high-density polyethylene (HDPE), is a new lightweight pipe that features a light weight, high pressure resistance, good toughness, fast construction, and long service life. Its excellent pipe wall design significantly reduces costs compared to other types of pipes. Additionally, due to its convenient and reliable connections, it has been widely used both domestically and internationally, largely replacing concrete and cast iron pipes. Appearance: Black. Complies with GB/T 19472.1-2004 "Part of buried polyethylene (PE) structural wall pipeline system: Polyethylene double-walled corrugated pipe." The elastic sealing meets the requirements of HG/T 3091-2000. - Process: - Digitized centralized control throughout the line - Double-machine co-extrusion, dual-layer diversion - Fully vacuum belt feeding - Random expansion mouth one-time forming Specifications of HDPE double-walled corrugated pipe: Inner diameter: DN225mm, DN300mm, DN400mm, DN500mm, DN600mm, DN800, etc. Features: HDPE double-walled corrugated pipe has excellent chemical stability, aging resistance, and environmental stress cracking resistance. The HDPE double-walled corrugated pipe produced from it is classified as a flexible pipe. Its key characteristics are as follows: - Strong external pressure resistance: The outer wall features an annular corrugated structure, greatly enhancing the pipe's ring stiffness and thereby increasing the pipeline's resistance to soil loads. In this regard, HDPE double-walled corrugated pipes have a clear advantage over other types of pipes. - Low engineering cost: Under equivalent load conditions, HDPE double-walled corrugated pipes only require a thinner wall to meet the requirements. Therefore, compared to solid-wall pipes of the same material and specifications, approximately half of the raw materials can be saved, resulting in a lower cost for HDPE double-walled corrugated pipes. This is another prominent feature of this type of pipe.