HDPE silicone core duct is a composite protective conduit specially designed for optical fiber cable protection, co-extruded with an HDPE outer layer and a solid silicone lubricated inner layer. The permanently lubricated interior offers a friction coefficient≤0.15, enabling air-blown cable installation over distances exceeding 1,000 meters in a single run.

The high-strength HDPE outer wall provides excellent impact, tensile and crush resistance, protecting against mechanical damage and long-term soil corrosion. Exceptional flexibility allows coiled packaging and long-distance installation without joints, reducing material and labor costs. Waterproof, moisture-proof and electrically insulating, it effectively safeguards cables against moisture, rodents, chemicals and external forces.

It is widely deployed in telecom trunk lines, 5G base station cabling, highway communication networks, high-speed rail systems, smart city utility tunnels and CATV backbone networks.

Notes on pipelines：

1. Strictly prohibit scratching, scraping or piercing the inner silicone lubricating layer during handling, cutting and installation, so as not to increase friction and affect cable air-blowing construction.

2. Before cable air-blowing operation, clean the inner wall of the pipeline to remove dust, sand and debris, and keep the inner wall smooth and low-friction.

3. The bending radius during installation shall not be less than 15 times the pipe outer diameter, and forced bending is prohibited to avoid pipe flattening, cracking or damage to the internal lubricating layer.

4. Use special matching connectors for joint connection, seal tightly to prevent groundwater, sand and mud from intruding into the pipe, and avoid cable corrosion and blockage.

5. When coiling and storing, the coiling diameter shall meet the standard, avoid tight coiling causing permanent deformation of the pipe; store in a cool and ventilated place away from sharp objects.

6. Professional air-blowing equipment shall be used for cable penetration, control air pressure and traction speed, avoid excessive force damaging the cable or pipe body.