Description

• 7-Way Multiduct Configuration The honeycomb arrangement of seven 14/10mm inner tubes provides high-density path availability within a single outer sheath, allowing for organized cable management and future network expansion. This configuration maximizes underground space utility and enables project managers to scale fiber capacity without additional excavation or trenching.
• Direct Bury (DB) Dual-Layer Construction The assembly features a primary inner tube layer protected by a 1.2mm high-density polyethylene (HDPE) outer sheath designed specifically for direct burial in diverse soil conditions. This structural integrity eliminates the need for secondary protective piping, significantly reducing material procurement costs and accelerating overall installation timelines.
• Ribbed Inner Surface with Silicon Lining The internal surface of each microduct is engineered with longitudinal ribs and a permanent silicon co-extrusion to minimize the friction coefficient during air-blowing operations. This mechanical design allows for longer blowing distances and reduces the tension applied to delicate micro-cables, ensuring the physical integrity of the fiber during deployment.
• High-Density Polyethylene (HDPE) Material Properties Constructed from robust HDPE, the bundle exhibits high chemical resistance and environmental stress-crack resistance (ESCR) when exposed to varying underground conditions. This material stability ensures the long-term protection of internal fiber optic cables against moisture, soil chemicals, and physical pressure throughout the network’s lifecycle.
• UV-Stabilized Outer Protection The outer layer is integrated with UV-resistant additives to prevent material degradation during prolonged exposure to sunlight at construction staging sites. This ensures the product maintains its mechanical flexibility and impact resistance from the point of delivery through the final burial phase.
• Standardized Color Coding System Each of the seven inner tubes is fully colored (white, blue, red, green, yellow, brown, and grey) to facilitate rapid identification and routing at jointing chambers and distribution points. This visual standardization reduces the risk of cross-connection errors during maintenance and simplifies troubleshooting for field technicians.
• Flexibility and Bend Radius Compatibility The inherent flexibility of the HDPE microduct bundle allows for efficient routing around existing underground obstacles while maintaining the minimum bend radius required for micro-cables. This adaptability simplifies complex installations in urban environments, reducing the need for specialized corner fittings and lowering the risk of signal attenuation.
• Compact Lightweight Architecture Despite its 7-way capacity, the microduct bundle utilizes a compact design that facilitates easier handling and lower transport weight compared to traditional rigid conduits. This lightweight construction reduces the logistical burden on project sites and allows for more efficient deployment in last-mile connectivity and data center interconnects.

Scope of application

The 7-way 14/10mm HDPE microduct bundle is specifically engineered for sub-surface telecommunications infrastructure. Its direct bury (DB) rating and silicore-lined inner surface make it suitable for high-speed fiber optic deployment through air-blowing technology. Below are the primary engineering applications categorized by project environment and functional requirements.

• Municipal Smart City InfrastructureIn urban development, this multi-duct system is deployed as the foundational communication layer for smart city infrastructure. It is utilized for the centralized routing of micro-fiber cables that power traffic management sensors, public surveillance systems, and municipal Wi-Fi networks. The compact design allows for efficient cable placement in crowded underground utility corridors where space is limited.
• FTTH Last-Mile ConnectivityThis HDPE microduct tube bundle is a critical component for last-mile connectivity in residential broadband expansion projects. Engineers utilize the 7-way configuration to provide dedicated pathways for individual service providers or to reserve capacity for future subscriber upgrades. The flexible HDPE material and specific bend radius compatibility allow the ducting to navigate around existing urban obstacles without compromising the integrity of the delicate micro-cables.
• Direct Buried Telecommunication BackboneFor long-haul network expansion, the Direct Bury (DB) series with a 1.2mm PE outer sheath is designed for installation directly into soil or sand-filled trenches. This eliminates the need for secondary protective conduit, protecting the internal 14/10mm tubes from environmental factors and mechanical stress in rural or inter-city routes. The UV-resistant outer layer protects the assembly from degradation while staged on-site in high-exposure environments prior to burial.
• Data Center Interconnects (DCI)Within campus-scale data centers, these microducts provide space-efficient routing for high-density micro-cables used in inter-building connectivity. The 7-way configuration enables logical separation of network segments (such as redundant paths or different security tiers) within a single physical bundle. The lightweight construction facilitates rapid installation in specialized cable trays or shallow trenches typically found in data center environments.
• Broadband Network Expansion and MaintenanceThis product is extensively used in the scaling of existing broadband and telecommunication networks. The ribs with silicon inner surface significantly reduce friction, enabling technicians to blow micro-cables over long distances into existing routes with minimal air pressure. The fully colored inner tubes—available in white, blue, red, green, yellow, brown, and grey—ensure accurate circuit identification for maintenance crews during future network repairs or upgrades.

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