Conduit, Sweeps, and Custom Radius Bends for Duct Bank Fabricators

Central Conduit supplies PVC conduit, duct bank sweeps, and custom radius bends for precast and cast-in-place duct bank work, including labor-saving factory options and support for hard-to-source requirements.

Why Duct Bank Fabricators Use Central Conduit


Central Conduit helps duct bank fabricators get the conduit, sweeps, and custom bends they need without wasting labor, forcing stock material into the wrong layout, or waiting on suppliers that can only handle easy catalog items.

If your current source can sell straight pipe but cannot help with duct bank sweeps, custom duct bank bends, factory prep, or urgent job requirements, this page is for you.

If your team is building precast duct banks, assembling cast in place duct banks, or sourcing electrical duct bank conduit for utility, data center, substation, roadway, telecom, or industrial work, Central Conduit helps solve the hard part of the job: getting the right conduit and bends without wasting labor, fighting stock limitations, or slowing down production.

What you get with Central Conduit

  • Straight conduit, sweeps, and bends coordinated for the same project
    Get PVC conduit for duct bank construction, along with standard sweeps and custom bends that match the job.
  • Support for standard and non-stock requirements
    From common 45° and 90° sweeps to custom radius PVC bends and large-radius engineered assemblies.
  • Factory chamfered ends available
    Reduce labor by avoiding manual chamfering during fabrication or field installation.
  • Factory prep options that save shop and field time
    Outer-edge prep options can reduce handling and help speed assembly.
  • Better fit for engineered duct bank layouts
    Use custom radius bends for duct bank work when stock sweeps do not match the required geometry.
  • Faster support on urgent jobs
    Expedited fabrication and logistics are available when schedule pressure hits.
  • Multiple sourcing paths
    Central Conduit sources based on project requirements, manufacturer approval, geography, and availability.
  • Built for real duct bank work
    Useful for precast duct bank fabrication, cast in place duct bank installation, utility projects, substations, and data centers.
Truckload 6 inch 90x48 PVC schedule 40 sweeps

Conduit For Data Centers FAQ

Yes. Central Conduit supplies conduit for both precast duct bank systems and cast in place duct bank work.

Common requests include 2, 3, 4, 6, and 8 inch PVC conduit for duct bank applications, especially Schedule 40.

Yes. Central Conduit supplies both duct bank sweeps and custom radius bends for duct bank layouts, including long-radius configurations that need to match project drawings.

A duct bank fabricator should use a custom radius bend when the project requires a non-standard radius, when a stock sweep does not match the layout, or when pulling conditions call for a gentler bend.

Yes. Factory prep options can be arranged. Central Conduit works with the factory making your conduit to put a outer bevel on the plain end to reduce manual prep and improve assembly efficiency.

Most underground duct banks use Schedule 40 and Schedule 80 PVC conduit in 2 through 8 inch trade sizes. Sch 40 is common for encased duct banks, while Sch 80 is used for areas with higher mechanical stress or where the engineer calls it out by spec. HDPE conduit is often used for fiber and low voltage laterals between buildings or to outlying yards.

Beveling or chamfering the plain end of the conduit assists with assembly in the field. This allows the multiple stems of conduit that are sealed in concrete to gently self-center into each socket. Without the chamfer, alignment needs to be much more exact.

Yes. Central Conduit can arrange factory chamfered conduit ends, typically around 30°, to help reduce labor during fabrication and field installation.

Yes. Duct bank spacers and conduit spacers for duct bank layouts are often part of the larger planning process because they help maintain conduit separation, alignment, and layout during precast or cast in place assembly.

Yes. Central Conduit regularly supports urgent projects that require expedited fabrication or faster logistics.

Freight allowed terms are often available on qualifying shipments based on order type and delivery geography. In general, truckload orders of straight conduit within 250 miles of a factory are freight allowed. For fabricated items, freight allowed terms are evaluated per order.

Yes. Central Conduit can provide standard and custom mandrels in PVC, steel, aluminum, or wood based on project drawings or owner requirements.

Who This Page Is For

This page is built for companies and teams that actually assemble, install, procure, and coordinate duct bank systems.

Central Conduit supports:

  • Duct bank fabricators
  • Precast concrete shops building duct bank assemblies
  • Electrical contractors fabricating in house
  • Utility contractors
  • EPC contractors
  • Data center contractors
  • Underground infrastructure contractors
  • Project managers and procurement teams sourcing duct bank conduit supplier support
  • Electrical suppliers and distributors looking to supplement existing supply chain solutions

What Duct Bank Projects Usually Need

Most duct bank fabrication inquiries start with straight conduit and sweeps. The most common requests are for PVC conduit for duct bank applications in 2, 3, 4, 6, and 8 inch trade sizes, along with 45° and 90° sweeps.

Depending on the project, customers may need:

  • Schedule 40 PVC conduit
  • DB or EB conduit for certain concrete encased duct bank applications
  • Standard PVC sweeps
  • PVC sweeps for duct bank
  • Long radius PVC elbows
  • Custom duct bank bends
  • Custom radius bends for duct bank
  • Long line couplers with no center stop
  • Custom mandrels built to drawing or owner specification

Common custom bend radii include:

  • 36″ radius
  • 48″ radius
  • 60″ radius
  • 72″ radius
  • 84″ radius
  • 96″ radius
  • 120″ radius

And when the project calls for something outside the ordinary, Central Conduit can support much larger custom bend requirements. We have seen request for 50′ radius, 100′ radius, 150′ radius, and even 400′ radius requests for custom radius bends used in precast and cast in place duct banks.

Why Fabricators Start Looking for a Better Duct Bank Conduit Supplier

Most problems in duct bank work do not come from straight conduit. They come from everything around it.

Central Conduit delivers the precision-engineered solutions that empower duct bank fabricators to accelerate schedules, minimize field labor, and eliminate material waste. Achieve a superior, factory-finished result for projects requiring:

  • Duct bank sweeps supplier support beyond catalog items
  • Non-stock bend radii
  • Large-diameter conduit with difficult minimums
  • Faster turnaround on custom fabrication
  • Matching manufacturers per project
  • Labor-saving factory prep
  • Custom lengths that support your workflow

As a duct bank conduit supplier, Central Conduit works across multiple sourcing paths based on project requirements, approved manufacturers, geography, availability, and timeline. That gives you a better chance of getting the right material faster instead of being boxed in by one limited source.

Stock Sweeps Are Not Enough for Every Duct Bank Layout

A stock sweep works until the project drawings call for something it cannot do.

Many electrical duct bank conduit layouts require bends that are longer or different than standard catalog items. A 120 inch radius bend is a simple example. That is not a typical stock sweep. Other projects have specific bend radius or bend angle per duct.

When project drawings require a specific radius, using the wrong sweep can create problems like:

  • Poor geometry versus the plans
  • Harder cable pulls
  • Higher risk of conduit and wire damage
  • More field modification
  • Wasted labor

That is why custom radius bends for duct bank work matter. When the bend geometry matches the layout, the installation goes smoother, cable pulling improves, and the system has a better chance of being right the first time.

Custom radius bend drawing

Practical Advantages That Help Duct Bank Fabricators Move Faster


Central Conduit helps customers reduce labor, simplify fabrication, and remove unnecessary job site friction.

Factory Chamfered Ends Available

Central Conduit can arrange factory chamfered conduit ends, generally around a 30° chamfer, to help streamline duct bank fabrication and field installation. This keeps your team from having to manually chamfer conduit ends in the shop or in the field, which saves labor, reduces extra handling, and helps keep production moving.

Factory Prepared Plain Ends

Outer-edge prep can be arranged on qualifying plain end conduit to reduce manual prep and help improve alignment during assembly.

Custom Lengths

If your fabrication process works better with non-standard stick lengths, custom lengths are available. This can help reduce cutting, reduce waste, and better fit the assembly process.

Opaque Covers for Sun Protection

Opaque covers can be arranged to help protect conduit from sun exposure during delivery and storage.

Power and utility supplier pvc sweeps staged in warehouse

Ready To Talk About Your Duct Bank Conduit Requirements

Bring Central Conduit Onto Your Next Duct Bank Project

  • Meets ANSI/UL 651 and NEMA TC-2 Standards
  • Approved for use in all government projects
  • Nationwide Logistics
  • Experience on the nation’s largest infrastructure projects
  • Expedited and emergency procurement services

Fabrication Bottlenecks We Help Solve

Some of the common duct bank fabrication bottlenecks we can help solve include:

  • Hand-prepping conduit ends before assembly
  • Manually chamfering every stick in the shop or field
  • Waiting on non-stock sweeps
  • Fighting sweep geometry problems
  • Delays caused by missing bends
  • Trouble matching drawings with stock material
  • Losing production time because one part of the order is wrong or late
  • Sourcing mandrels designed to match the project requirements

Central Conduit focuses on solving those problems by supporting custom PVC bending solutions including:

  • Any size
  • Any schedule
  • Any bend
  • Any radius
  • Any quantity

Conduit and Sweeps for Precast Duct Bank Fabrication

Precast duct bank shops need more than commodity conduit. They need a supplier that understands how conduit, sweeps, fit-up, spacing, production flow, and project-specific requirements all work together.

Central Conduit supports precast duct bank fabrication with PVC conduit for duct bank systems, standard sweeps, custom duct bank bends, and labor-saving options that can reduce prep work during assembly.

For precast operations, consistency matters. The conduit needs to match the project specification, the bends need to match the layout, and the material needs to arrive in a form that supports efficient fabrication. Central Conduit helps support that process by supplying the conduit and bend components that keep the shop moving.

Conduit and Sweeps for Cast in Place Duct Bank Work

Not every duct bank is built in a precast yard. Many projects require conduit systems to be assembled directly in the trench and concrete-encased in place.

Central Conduit supports cast in place duct bank work with PVC conduit for duct bank construction, standard sweeps, long radius PVC elbows, and custom radius bends for duct bank layouts used in utility, data center, industrial, roadway, telecom, and commercial underground work.

For cast in place duct bank installation, material consistency matters. You need conduit that matches project specifications, approved manufacturers, bend requirements, and schedule demands. Central Conduit helps source straight conduit and bends for concrete encased duct bank runs, including common trade sizes and standard or custom bend configurations.

Factory chamfered ends can also be arranged on qualifying orders to help reduce field labor and speed up assembly. That means less beveling in the trench, less extra handling, and one less step slowing down the crew.

Whether the job involves a single run or a large multi-run pour, Central Conduit can help supply the conduit and bend components that keep the work moving.

Common cast in place duct bank needs we support:

  • PVC conduit for concrete-encased underground runs
  • Standard 45° and 90° sweeps
  • Other bends like 5°, 11.25°, 22.5°, 30° or any other custom degree bend your plan requires
  • All size radius bends from standard to ultra long radius bend assemblies
  • Factory chamfered ends to reduce field labor
  • Project-based and truckload quoting for larger jobs

Conduit Spacers and Duct Bank Layout Considerations

Conduit spacers are part of the broader duct bank layout conversation. They help maintain conduit separation, alignment, and layout during assembly and concrete encasement, whether the project involves precast duct bank fabrication or cast in place duct bank installation.

For contractors and project teams planning electrical duct bank conduit systems, spacer requirements often connect directly to other decisions such as:

  • Conduit size and quantity
  • Bend angle and radius
  • Bank geometry
  • Conduit separation
  • Reinforcement needs
  • Installation method
  • Concrete encasement workflow

Custom Means Custom

When we say custom, we are not talking about a slightly odd stock item. We are talking about a fully customized PVC bend tailored to your specific requirements, produced quickly, at scale, and delivered across the country. Central Conduit is built for this type of conversation.

  • Custom radius PVC bends
  • Custom duct bank bends
  • Large-radius 90s
  • Non-standard bend angles
  • Long-radius assemblies
  • Long line couplers with no center stop
  • Custom mandrels built to drawing
  • Unusual bend requirements for substations, vaults, and long underground runs

Typical Duct Bank Applications We Support

Central Conduit supports conduit and bend supply for:

  • Precast duct bank systems
  • Cast in place duct bank systems
  • Concrete encased duct bank construction
  • Utility infrastructure
  • Data center development
  • Substations
  • Power distribution systems
  • Roadway and highway electrical work
  • Telecom and fiber infrastructure
  • Industrial facilities
  • Municipal underground infrastructure
  • Municipal underground infrastructure
  • Renewable energy projects
  • Campus electrical distribution systems

Conduit Products For Duct Bank Systems

6 inch schedule 40 PVC conduit staged on job site

PVC Conduit

UL certified Schedule 40 PVC conduit is the backbone of most duct bank systems.

Common trade sizes from 2 in through 8 in, supplied in 10 ft and 20 ft lengths to match your duct bank and vault layouts.

PVC conduit sweeps in warehouse

PVC Elbows and Fittings

PVC elbows handle the turns where data center power and fiber change direction.

We supply standard and long radius elbows in the trade sizes used on duct banks and vault approaches, helping reduce cable stress and keep pulls clean.

Custom radius PVC bend CAD drawing

Custom Radius PVC Sweeps

PVC custom radius elbows made in any size, any radius, and any quantity for data center duct banks and vault approaches. Shaped to match your cable schedule, we have produced bends up to 150 feet for long runs between substations and data halls.

Designed for smooth cable transitions, these bends reduce friction and tension, making wire pulls easier and safer.

HDPE conduit orange reel on job site

HDPE Conduit

We supply HDPE in reels or sticks with options for striping and pull tape, designed to work alongside PVC so your duct banks and raceways stay consistent across the site.

Conforms to domestic standards preference including Buy America (BAA), Build America, Buy America (BABA), and DOT Buy American requirements.

Standards And Specs For Duct Bank Conduit

PVC conduit and elbows for data center projects must meet the same electrical standards as any critical power installation, but at much larger scale. Central Conduit supplies Schedule 40 and Schedule 80 PVC conduit and fittings manufactured to UL 651 and NEMA TC-2 requirements, covering material, dimensions, impact resistance, and performance for above ground, encased, and direct burial use.

For HDPE conduit used on fiber and low voltage laterals, we work with products that meet ASTM F2160, UL 651A, and NEMA TC-7. These standards govern dimensional tolerances, pressure ratings, and long term performance for underground and directional drilling applications, which is why project engineers and inspectors recognize them on submittals and as-built documentation.