D54 Duct Pipe Specification for Saudi Arabia
D54 is an industry duct designation for a nominal 96.5 mm outer diameter uPVC duct pipe used to protect underground electrical and telecommunications cable. It is built to the NEMA TC 2 EPC 80 duty class and ASTM F 512. 4B Factory manufactures uPVC conduit and duct pipe across this specification band at its Al-Kharj plant.
Duct Class
What the D54 Duct Designation Means
D54 is a duct sizing code used across Gulf telecom and utility infrastructure tenders. The letter D marks it as a duct product, and the number identifies the nominal size band: a nominal 96.5 mm outer diameter duct with a wall thickness of roughly 3.25 to 3.65 mm, corresponding to the EPC 80 heavy duty class.
The designation itself is not a Saudi Standards Organisation code. It describes a size and duty band that sits within the NEMA TC 2, TC 6 and TC 8 duct standards and ASTM F 512, the same base standards that 4B Factory's PVC conduit and duct pipe range is manufactured to.
Buyers searching for D54 duct are typically procurement teams and contractors specifying underground cable protection for a telecom, power or utility project, matching a size already named in a tender document or operator specification sheet.
D54 Duct Pipe Specification
Reference dimensions for the D54 duct class, drawn from published Gulf duct manufacturer data. Confirm exact tolerances against your own project or tender specification before ordering.
| Property | Value |
|---|---|
| Designation | D54, a duct sizing code used in Gulf utility and telecom duct tenders |
| Outer diameter | Approximately 96.3 to 96.7 mm |
| Wall thickness | Approximately 3.25 to 3.65 mm, EPC 80 heavy duty band |
| Duty class | EPC 80, suitable for direct burial (DB) and encased burial (EB) |
| Standards referenced | NEMA TC 2, TC 6, TC 8 and ASTM F 512 |
| Colour | Black or dark grey |
| Standard length | 5.8 to 6 m, confirm exact length when ordering |
| Typical use | Underground electrical and telecommunications cable protection |
Figures are published dimensional data for the D54 duct class rather than a 4B Factory catalogue listing under that exact name. 4B Factory's own PVC conduit and duct pipe (NEMA TC 2 EPC 80-PVC, half inch to 6 inch) covers this size and duty band and can be supplied against a D54 tender specification on request.
D54 Duct Applications
Underground Power Cable Protection
Direct or encased burial protection for medium and low voltage underground power cable.
Underground Telecom & Fibre Duct
Duct runs protecting telecom and fibre cable beneath roads, plots and utility corridors.
Utility & Government Infrastructure Tenders
Sizing that matches operator and government duct specifications named in tender documents.
Solar & Substation Cable Runs
Underground cable duct for solar farm collector circuits and substation interconnections.
Related Products & Guides
The D54 duty band sits inside 4B Factory's wider conduit and duct range. Explore the product pages and comparison guide below.
PVC Conduit & Duct Pipes
NEMA TC 2 EPC 80-PVC, half inch to 6 inch nominal diameters.
More Information →
Conduit vs Duct Selection Guide
How to choose between conduit and duct pipe for a Saudi project.
More Information →Why Specify 4B Factory for D54 Spec Duct
Factory-Direct Manufacturing
Produced at the Al-Kharj plant with no distributor margin on project orders.
NEMA TC 2 EPC 80 Range Already Stocked
The D54 size and duty band sits within 4B Factory's existing conduit and duct range.
Custom Sizing & Bulk Capability
Custom duct sizing and bulk production runs for tender-scale duct orders.
Kingdom-Wide Delivery
Delivered from Al-Kharj to project sites across Saudi Arabia.
Compliance Documentation for Tenders
Standards documentation supplied to support tender and project approval.
Corrosion-Free uPVC
No rust or corrosion in underground or coastal ground conditions.
Request D54 Spec Duct Pipe
Send your tender reference, quantities and delivery location and 4B Factory will confirm sizing against the D54 specification band from its Al-Kharj plant.
Frequently Asked Questions
D54 identifies a duct sizing and duty band rather than a single named standard. It refers to a nominal 96.5 mm outer diameter uPVC duct with an EPC 80 heavy duty wall, built to the NEMA TC 2 family of standards and ASTM F 512.
D54 duct runs approximately 96.3 to 96.7 mm in outer diameter, with a wall thickness of roughly 3.25 to 3.65 mm. Confirm exact tolerances against your project specification before ordering.
D54 sits within the NEMA TC 2, TC 6 and TC 8 duct standards and ASTM F 512, the base standards that 4B Factory's PVC conduit and duct pipe range is manufactured to.
Yes. The EPC 80 duty class covers both direct burial and encased burial installation, making it suitable for underground cable protection subject to project ground conditions.
4B Factory manufactures uPVC conduit and duct pipe in the NEMA TC 2 EPC 80-PVC range from half inch to 6 inch nominal diameters, covering the size and duty band the D54 designation describes. Confirm dimensional tolerances against your tender specification when requesting a quote.
D54 is a specific size and duty designation within the wider conduit and duct family. 4B Factory's uPVC duct pipe (SAS 254/255) covers a smaller 20 to 63 mm range for telephone and power cable, while its PVC conduit and duct pipe (NEMA TC 2 EPC 80-PVC) covers the larger half inch to 6 inch range that the D54 duty band sits within.
D54 duct is typically supplied in black or dark grey, consistent with the colour used across 4B Factory's underground duct and conduit range.
Request a Quote for D54 Spec Duct Pipe
Send your product, sizes, quantities, tender reference and delivery location for a quotation. Call, WhatsApp, or email info@4bfactory.com.