3 Cell Fabric Innerduct Textile Subduct

The 3 Cell Fabric Innerduct is a high-performance, flexible, and durable textile subduct solution designed to maximize space efficiency and cable protection in underground and conduit-based fiber optic installations. Made from high-strength woven polyester materials, this innerduct features three individual cells, each reinforced with factory-installed pull tapes to streamline the cable installation process.

At Bativ, we specialize in a full range of fabric innerducts, offering configurations including 1 cell, 2 cell, and 3 cell designs. Our 3 Cell Fabric Innerducts are available in standard diameters of 1 inch, 2 inches, 2.2 inches, 4 inches, or custom sizes upon request. Whether your project involves high-density metro networks, long-distance backbone infrastructure, or FTTH deployments, our 3 Cell Fabric Innerduct is engineered to meet your needs with outstanding reliability and efficiency.

Key Features of the 3 Cell Fabric Innerduct

Lightweight and Flexible Construction

One of the defining characteristics of our 3 Cell Fabric Innerduct is its lightweight, textile-based structure, which offers significant advantages over traditional HDPE subducts:

• No bending memory: Unlike PE sub-tubes that retain a coiled shape, our fabric innerduct remains flat and flexible, eliminating kinks and curls.
• Enhanced cable installation: Each of the three cells includes a high-strength pre-installed pull tape, eliminating the need for threading cables manually through the duct.
• Compact deployment: The flexible material requires minimal space during installation, making it ideal for urban areas, congested duct systems, and existing conduit upgrades.

Superior Electrical Wire and Fiber Optic Cable Protection

The 3 Cell Fabric Innerduct is built for high mechanical performance and long-term durability:

• Breaking strength exceeds 1000 kg, offering robust protection for delicate electrical wires and fiber optic cables.
• High-temperature resistance: With a melting point of 215°C (compared to 110°C for HDPE), the textile innerduct is well-suited for high-heat environments.
• Low thermal expansion: The fabric innerduct has a thermal expansion rate that is just 1/7 that of HDPE, minimizing stress on cables from temperature fluctuations.

Long Service Life in Harsh Environments

Designed for underground use, the 3 Cell Fabric Innerduct is engineered for longevity:

• Chemical resistance: The innerduct resists degradation from soil chemicals, moisture, and microbial activity.
• Extended lifespan: With an estimated service life of 30–50 years, it significantly outlasts traditional PE subducts, which typically degrade in 15 years or less.
• Low maintenance: Reduced risk of collapse or deformation ensures that the conduit remains usable over decades, minimizing operational disruptions.

Smart Identification and Installation Design

To enhance operational efficiency, our 3 Cell Fabric Innerduct includes several features that simplify construction and future maintenance:

• Color-coded pull tapes: Each cell uses a different colored draw tape, helping installers quickly identify and manage cable paths during setup.
• Meter-marked printing: Factory-printed meter marks reduce installation waste and enable precise cutting and layout.
• Custom labeling: We offer factory labeling, allowing you to distinguish between different innerducts within a multi-duct installation. This makes it easier to manage networks and perform maintenance.

Environmentally Friendly Material

The 3 Cell Fabric Innerduct also supports environmentally sustainable infrastructure:

• No harmful residue: Unlike HDPE ducts, which degrade and can leave harmful plastic residues, our textile innerducts break down more cleanly and are less likely to cause blockages.
• Long-term reliability: With reduced need for replacement, our fabric innerduct reduces waste and resource usage over time.
• Designed for circularity: The innerduct can be recycled at the end of its life cycle, making it a responsible choice for green infrastructure projects.

3 Cell Fabric Innerduct Specifications

Model	Max Cable Diameter(mm)	Width（±2.0mm）（mm）
		Circum	Diameter	Width A	Seam B	Pull Tape WidthC
FZ8638-x	38	163	52	86	4	8
FZ6428-x	28	121	38	64
FZ5624-X	24	103	33	55
FZ5222-x	22	97	31	52
FZ4418-x	18	81	26	44
FZ3614-x	14	65	21	36
FZ3212-x	12	56	18	32
FZ2810-x	10	49	15	28

Custom sizes and configurations are available upon request. Whether you need narrow-width innerducts for tight spaces or larger capacity ducts for high-bandwidth applications, we have the right solution for your project.

Applications

The 3 Cell Fabric Innerduct is widely used in:

• Fiber to the Home (FTTH) systems
• Metropolitan Area Networks (MAN)
• Long-haul and backbone fiber routes
• Underground cable infrastructure
• Data centers and industrial campuses

Its versatility, compact design, and high durability make it suitable for both new builds and retrofits.

Why Choose Our 3 Cell Fabric Innerduct?