Description

Engineering Positioning Statement The HDPE porous pipe, commonly referred to as a plum blossom tube or honeycomb duct, functions as a high-density protective conduit system for underground optical fiber and communication cable deployments. By integrating multiple independent microducts into a single extruded PE structure, this system enables high-capacity cable routing within a minimized trench footprint, addressing the technical requirements for efficient last-mile connectivity and backbone network expansion.

• Integrated Multi-Hole Structure → Optimized Space Utilization → Reduced Excavation Costs The plum-blossom-shaped design integrates 3, 5, 7, or 9 independent holes into a single HDPE conduit, allowing for the simultaneous deployment of multiple cable lines in a single trench. This structural integration eliminates the need for manual sub-tube insertion during installation, significantly reducing the required excavation volume and associated labor expenses for large-scale telecommunication projects.
• High-Density Polyethylene (HDPE) Composition → Enhanced Physical Durability → Long-Term Infrastructure Integrity Utilizing industrial-grade PE material, this porous pipe exhibits high ring stiffness and resistance to external mechanical impacts or environmental stress cracking. This material integrity ensures the protection of sensitive optical fibers from underground pressure and soil shifts, securing the long-term operational stability of the communication network.
• Low-Friction Inner Wall Surface → Efficient Cable Installation → Minimized Risk of Signal Degradation The specialized extrusion process results in a smooth internal bore for each microduct, which facilitates the direct laying or blowing of optical fiber cables. By minimizing frictional resistance during pulling, the design reduces the mechanical tension applied to the cables, thereby preventing micro-bends or kinks that could compromise high-speed data transmission.
• Operational Temperature Range (-20°C to +60°C) → Thermal Stability → Reliability in Diverse Climatic Conditions This conduit is engineered to maintain its structural dimensions and stiffness across a wide temperature gradient, from extreme sub-zero environments to high-heat tropical regions. Such thermal resilience prevents pipe deformation or brittleness, ensuring that the protective sleeve remains functional and accessible for cable maintenance regardless of geographic location.
• UV-Resistant Material Properties → Material Stability During Surface Exposure → Versatile On-Site Storage and Application The HDPE material is formulated with UV-stabilizing additives to prevent degradation and loss of mechanical properties when pipes are exposed to sunlight during outdoor storage or above-ground installation phases. This chemical resistance prevents the pipe from becoming brittle, maintaining its protective capabilities for the cables housed within.
• Microduct Ventilation and Organized Routing → Improved Thermal Management → Optimal Cable Performance Conditions The porous nature of the honeycomb duct allows for natural ventilation within the pipe structure, which helps mitigate heat buildup generated by high-density cable clusters. This organized routing system prevents cable entanglement and ensures a stable thermal environment, which is essential for maintaining consistent performance in data centers and smart city communication networks.

Scope of application

• Fiber Optic Backbone and Telecommunication NetworksIn large-scale telecommunications infrastructure, these pipes serve as the primary cable wire protection sleeve for fiber optic backbone lines. The HDPE material provides a high-stiffness conduit system capable of withstanding the mechanical stress of direct burial while protecting high-speed data transmission lines from soil pressure and groundwater infiltration. The microduct technology within the 7/9-hole configurations allows for organized, multi-line routing in a single trench, facilitating long-distance broadband network expansion.
• Last-Mile Connectivity and Urban Fiber-to-the-Home (FTTH)For metropolitan area networks and urban residential zones, this PE porous plum pipe facilitates the extension of fiber networks to end-users in restricted underground spaces. The plum-blossom-shaped structure enables engineers to deploy multiple small-diameter optical cables through a single 3/5-hole conduit, significantly reducing the surface disruption and labor time required for urban last-mile connectivity projects. Its smooth inner wall ensures that cables can be pulled or blown through distances of up to 100M-200M per roll without risking cable bends or kinks.
• Data Center Infrastructure and Structured CablingWithin high-density data center environments, these conduits are used to manage complex optical cable routing between server clusters and core switches. The porous nature of the honeycomb duct provides enhanced ventilation, which is essential for managing heat buildup in areas with high-density cable concentrations. This application typically involves indoor or protected underground trenches where maintaining organized pathways and optimal thermal conditions for cable performance is a priority.
• Smart City and Municipal Surveillance SystemsIn smart city infrastructure projects, HDPE porous pipes are deployed along roadways and intersections to house communication cables for traffic monitoring, public Wi-Fi, and smart lighting systems. The UV-resistant properties of the HDPE material ensure the conduit remains stable during the transition from underground trenches to surface-level junction boxes, protecting cables from degradation due to sunlight exposure. These systems are designed to operate reliably across a temperature suitable range of -20°C to +60°C, making them suitable for diverse urban climates.
• Industrial Site Communication and Security WiringLarge-scale industrial facilities, such as airports, seaports, and power plants, utilize PE plum pipe as a protective sleeve for security and internal communication wiring. The material complies with ISO4422 and BSEN13476 standards, ensuring that the underground communication infrastructure can withstand the heavy load-bearing requirements of industrial traffic and potential exposure to common soil-based chemical agents or weak acids and bases.

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