PVC Telephone Duct Type C
PVC Type C telephone duct is a heavy-wall rigid PVC conduit designed specifically for telecommunications infrastructure. It provides a durable, long-term pathway for copper and fiber optic cables in underground duct bank systems, with a factory-installed bell end for secure joint assembly without separate couplings. Galloway stocks Type C telephone duct from Prime Conduit.
Features
The specifications below reflect a duct built for long, stacked underground runs — rated to the telecom duct standards utilities call out by name, joined by factory bell ends for fewer connections over distance, and spacer-compatible for multi-duct bank configurations.
-
check_circlecheck_circle
Designed specifically for telecommunications infrastructure
Meets Bellcore/Telcordia CAO8546 and NEMA TC-10 standards for utility duct
-
check_circlecheck_circle
Factory-installed bell end on each 20’
Provides secure, efficient joint assembly without separate couplings or cement
-
check_circlecheck_circle
Heavy-wall construction
Provides excellent crush resistance for underground duct bank installations
-
check_circlecheck_circle
Flexibility
Suitable for both direct burial and concrete-encased applications
-
check_circlecheck_circle
Lightweight PVC construction
Easier to handle than metal alternatives while providing long-term corrosion resistance
-
check_circlecheck_circle
Full range of pre-formed bends available
90°, 45°, 22.5°, and 11.25° sweeps for routing flexibility
-
check_circlecheck_circle
Compatible with standard PVC fittings
And spacer systems for multi-duct bank configurations
Loose Tube - OSP Backbone, Feeder & Distribution
Color-coded loose buffer tubes
Protect individual fibers from mechanical and environmental stress; stranded designs carry 6 to 24 tubes, central-tube designs a single tube
Single-mode OS2 (G.652.D) standard, G.657.A1 for tighter bend routing;
OFS AllWave ZWP fiber gives zero water peak across the full wavelength spectrum
Gel-free DryBlock construction (OFS)
Reduces splice prep time by up to 80% vs. gel-filled designs
Jacket and construction options span single jacket (SJ) through double-armored (DA)
Corrugated steel tape armor for direct-burial without conduit or in rodent-prone areas; OFS Fortex DT Light Armor is gel-free and mass-fusion-ready
All-dielectric ADSS variant for aerial self-support
No messenger wire, no grounding on energized power lines; aramid strength members support spans to ~1,500 m depending on loading; OFS PowerGuide DT double-jacket eliminates all gels
Fiber counts from 12 to 864
Standard reel lengths 1 km and 2 km; multimode OM3/OM4 available for campus and data center interconnect
Loose Tube - OSP Backbone, Feeder & Distribution
Color-coded loose buffer tubes
Color-coded loose buffer tubes protect individual fibers from mechanical and environmental stress; stranded designs carry 6 to 24 tubes, central-tube designs a single tube
Single-mode OS2 (G.652.D)
Single-mode OS2 (G.652.D) standard, G.657.A1 for tighter bend routing; OFS AllWave ZWP fiber gives zero water peak across the full wavelength spectrum
Gel-free DryBlock construction (OFS)
Gel-free DryBlock construction (OFS) reduces splice prep time by up to 80% vs. gel-filled designs
Jacket and construction options span single jacket (SJ)
Jacket and construction options span single jacket (SJ) through double-armored (DA): corrugated steel tape armor for direct-burial without conduit or in rodent-prone areas; OFS Fortex DT Light Armor is gel-free and mass-fusion-ready
All-dielectric ADSS
All-dielectric ADSS variant for aerial self-support---no messenger wire, no grounding on energized power lines; aramid strength members support spans to ~1,500 m depending on loading; OFS PowerGuide DT double-jacket eliminates all gels
Fiber counts from 12 to 864
Fiber counts from 12 to 864; standard reel lengths 1 km and 2 km; multimode OM3/OM4 available for campus and data center interconnect
Ribbon - High Fiber Count Backbone & Trunk

-
For high-density backbone and trunk, hyperscale data center interconnect, and central office / carrier-hotel cabling
-
Fiber counts from 144 to 6,912+; outside diameter is critical for duct-fill calculations
-
Standard matrix, rollable, and intermittently bonded ribbon (IBR) constructions; rollable / IBR allows higher packing density in a smaller diameter
-
12-fiber mass-fusion splicing dramatically reduces splice time vs. single-fiber splicing
-
Single jacket, double jacket, armored, or all-dielectric construction
Flat Drop - Last-Mile FTTH
-
Flat self-supporting design for last-mile drops to home or business---aerial self-support or direct-buried final span
-
1, 2, 4, 6, and 12-fiber counts; G.657.A2 bend-tolerant fiber typical; compatible with standard wedge clamps and closure strain reliefs
-
Toneable (copper toner) variant locates buried drops after install without digging; all-dielectric version also available
-
MDPE outdoor jacket with flame-retardant option for indoor transition; pre-connectorized (OptiTap / hardened) or bulk reel; RUS (RDUS)-listed options available
Technical Specifications
The following specifications represent our standard stocked range.
Give us a call. We’ll figure it out.
|
Specification |
Standard Stocked Range |
|
Material |
Rigid Polyvinyl Chloride (PVC) |
|
Available Size |
4” nominal |
|
Outside Diameter |
4.350” |
|
Minimum Wall Thickness |
0.150” (estimated minimum to meet performance criteria) |
|
Standards Compliance |
NEMA TC-10 | Bellcore/Telcordia CAO8546 |
|
Standard Length |
20’ with one factory bell end per length |
|
Standard Colors |
Grey, White |
|
Approx. Weight |
151 lbs per 100 ft. |
|
Standard Crate Quantity |
1,260 ft. |
|
Available Bends |
90°, 45°, 22.5°, 11.25° Sweeps |
Technical Specifications
| Specification | Standard Stocked Range | Standard Stocked Range |
Standard Stocked Range | Standard Stocked Range |
|---|---|---|---|---|
|
Material |
High-Density Polyethylene (HDPE) |
|
|
|
|
Available Sizes |
3/4” through 6” diameter |
|
|
|
|
SDR Options |
SDR 7, 9, 11, 13.5, 15.5 (controlled by outside diameter and minimum wall thickness) |
|
|
|
|
SIDR Options |
SIDR 9, 11.5 (controlled by inside diameter and minimum wall thickness) |
|
|
|
|
Schedule Options |
Schedule 40 and Schedule 80 |
|
|
|
|
Standards Compliance |
ASTM D3035, ASTM D2239, ASTM F2160 |
|
|
|
|
Listings |
RUS Listed for telecommunications applications |
|
|
|
|
Pull Tape |
Available empty or with factory pre-installed pull tape (1,250 lb typical tensile strength) |
|
|
|
|
Standard Colors |
Orange, blue, green, black, white, red, brown, gray, terra cotta, yellow. Custom colors and stripe combinations available. |
|
|
|
|
Reel Sizes |
66”, 84”, 96”, 102”, 114” diameter steel reels |
|
|
|
|
Conduit Markings |
Permanent marking includes material type, applicable standards, production information, and sequential foot/meter markings. Custom marking available. |
|
|
|
Title would go here
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit purus ex, eget molestie quam rutrum vitae. In egestas faucibus magna, vel malesuada mi tempor a. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit purus ex, eget molestie quam rutrum vitae. In egestas faucibus magna, vel malesuada mi tempor a.
You may also need
Fiber Optic Cable
Loose tube OSP backbone, ribbon, and drop cable — single-mode and multimode from OFS, Prysmian, and AFL.
Enclosures & Underground
Composite and polymer-concrete handholes and vaults — where duct-bank runs terminate and transition between segments.
PVC Couplings & Fittings
Sweeps, elbows, and adapters for Schedule 40 and 80 — for the standard-conduit side where a split-duct repair ties back in.
Brands we carry
Need PVC Telephone Duct for Your Next Build?
We stock Type C telephone duct, sweeps, and duct bank accessories at every Galloway location. Tell us your duct bank configuration and footage requirements—we’ll make sure you have everything you need for the pour.
At Galloway, we don’t wait for a spec sheet. Talk us through the job and we’ll make sure you get what you need.