2-Cell Fabric Innerduct — Two Color-Coded Pathways Inside One Conduit
2-Cell Fabric Innerduct — Two Color-Coded Pathways Inside One Conduit
Description： Two cable routes, one conduit, no new trenching. The 2-Cell Fabric Innerduct provides two independent longitudinal pathways inside a single existing conduit, so you can segregate two fiber routes cleanly without digging. Its flexible woven textile design conforms to the shape of installed cables, recovering the space rigid innerduct wastes and lowering overall pull tension during installation. Both cells carry a pre-installed, color-coded pull tape, so crews identify each pathway at a glance during install and maintenance. The PET + Nylon 6 fabric resists abrasion, moisture and UV for a 30–50 year buried design life — roughly double HDPE subduct. Available in Standard, Riser, Plenum and Detectable versions. Send your conduit ID and cable ODs and we will confirm the configuration for free.
Product Description
Bullet Points
Two independent color-coded pathways segregate two cable routes in one conduit
Collapsible woven structure recovers up to 80% fill — space rigid innerduct wastes
Pre-installed pull tape in each cell, color-coded for easy identification
Lower pull tension for faster, safer installation vs rigid innerduct
215°C (419°F) melt point and ~1/7 the thermal expansion of HDPE
30–50 year design life vs ~15 years for HDPE subduct
Application：
Two-route fiber segregation in telecom conduit
Moderate-density FTTH / OSP builds
Conduit capacity expansion without new trenching
Buyer segmentation：
。Distributors — Mixed wholesale, private labeling
。Telecom contractors — Two-way partitioning, OSP
。Utility contractors — Conduit expansion
Specification
|
Parameter |
Specification |
|
Cell Count |
2 |
|
Material |
PET + Nylon 6 |
|
Conduit ID |
1" / 2" Standard — 3212-2 / 5222-2 Reference |
|
Max cable OD |
10 / 12 / 14 / 18 / 22 / 28 / 38 mm（0.39–1.50 in） |
|
Tensile strength |
528–1440 kg（1,164–3,175 lbs） categorized by wire |
|
Melt point |
215°C / 419°F |
|
Thermal expansion |
about 1/7 of HDPE |
|
Design life |
30–50 Years |
|
Fill ratio |
Up to 80% |
|
Pull tape |
Pre-installed high-strength pull cord, three-chamber color coding meter marking |
|
Reel length |
2000 m / 6,560 ft (standard wood roll, cuttable) |
Fabric Innerduct vs HDPE Subduct vs Rigid Innerduct
|
Metric |
Fabric Innerduct |
HDPE Subduct |
Rigid Innerduct |
|
Melt point |
215°C / 419°F |
~110°C / 230°F |
— |
|
Thermal expansion |
about 1/7 of HDPE |
baseline |
— |
|
Design life |
30–50 Years |
~15 Years |
— |
|
Fill ratio |
Up to 80% |
Lower |
waste tube space |
|
Bending memory |
None (foldable and flush) |
will curl; |
fixed shape |
|
Pull tape |
Pre-set for each chamber; color separation for 2 or more chambers |
separately equipped |
separately equipped |
|
Install speed |
About 2× faster (benchmark) |
Benchmark |
Benchmark |
Size Chart：
|
Model |
MAX DIAMETER PER CELL(mm) |
Circumference (mm) |
Perimeter(mm) |
Width A (mm) |
Joint B (mm) |
Pull rope width C (mm) |
|
8638-x |
38 |
163 |
52 |
86 |
4 |
8 |
|
6428-x |
28 |
121 |
38 |
64 |
4 |
8 |
|
5624-x |
24 |
103 |
33 |
55 |
4 |
8 |
|
5222-x |
22 |
97 |
31 |
52 |
4 |
8 |
|
4418-x |
18 |
81 |
26 |
44 |
4 |
8 |
|
3614-x |
14 |
65 |
21 |
36 |
4 |
8 |
|
3212-x |
12 |
56 |
18 |
32 |
4 |
8 |
|
2810-x |
10 |
49 |
15 |
28 |
4 |
8 |
Tensile Strength Reference Table（ -1/-2/-3 = 1/2/3 cell）
|
Single Cell diameter |
1 Cell |
2 Cell |
3 Cell |
|
38mm |
>760 kg (1,676 lbs) |
>1440 kg (3,175 lbs) |
>2120 kg (4,674 lbs) |
|
28mm |
>592 kg (1,305 lbs) |
>1104 kg (2,434 lbs) |
>1616 kg (3,563 lbs) |
|
22mm |
>496 kg (1,094 lbs) |
>900 kg (1,984 lbs) |
>1300 kg (2,866 lbs) |
|
18mm |
>432 kg (952 lbs) |
>784 kg (1,728 lbs) |
>1136 kg (2,504 lbs) |
|
14mm |
>368 kg (811 lbs) |
>650 kg (1,433 lbs) |
>940 kg (2,072 lbs) |
|
12mm |
>332 kg (732 lbs) |
>584 kg (1,287 lbs) |
>836 kg (1,843 lbs) |
|
10mm |
>304 kg (670 lbs) |
>528 kg (1,164 lbs) |
>752 kg (1,658 lbs) |
FAQ
Q1. Are you a manufacturer or a distributor?
We are a fabric innerduct manufacturer, specializing in
1, 2, 3 and 4 cell configurations. OEM, private-label and custom printing are
available.
Q2.How to choose between 2-cell and 3-cell?
Use 2-cell for two routes; use 3-cell three-way isolation or larger capacity.
Q3. Can it be installed in a conduit that already contains
cable?
Yes, where sufficient usable space and a suitable
pulling route remain. Send the conduit ID, existing cable OD, new cable OD, and
route length / bends for an initial fit check.
Q4.What is the tensile strength?
Graded by single-chamber wire diameter, 528–144 kg.
Q5. What certifications do you have?
Telcordia GR-20 (general), GR-3561 (Detectable locating) and
UL2024 (Plenum & Riser). We list only the certifications we actually hold
for each version.
Q6.What is the purpose of the color-coded pull rope in dual-chamber cables?
To easily distinguish between the two channels during construction and later maintenance, pulling the wrong cable.
Q7. Can I get a free sample?
Yes —
free samples are in stock for fit and pulling evaluation. Provide your DHL / FedEx
/ TNT / UPS account, or we charge a small shipping fee.
Q8. Can you print my brand or custom marking?
Yes. Example marking: Fabric Innerduct 5624-3 1888M 25-19 Max 24mm. We support custom meter marking, color-coded pull tape,
reel length and packaging.
Q9. What are the delivery time and payment terms?
Delivery depends on order quantity — typically 3–7
business days for small orders and 11–14 days for a 40 ft container. Payment by
T/T in advance; PayPal accepted for small orders.