Direct pricing from the Jeddah plant, with technical submittal support.
Engineering review of supply scope, project challenges, material specification rationale, and installation performance in the Kingdom of Saudi Arabia.
Site: Diriyah, Riyadh Province, Kingdom of Saudi Arabia
Region: Kingdom of Saudi Arabia
Climate: Arid desert environment, high solar ground heat.
Entities: Master Developer & Tier-1 Infrastructure Contractors
Manufacturer: ALFA AL-ARABIA Manufacturing Co.
Aramco Vendor Code: # 10116102
Systems: NEMA TC-2 EPC-40/80 Rigid PVC Conduits & DIN 19531 Building DWV Drainage
Manufacturing Plant: 3rd Industrial City, Jeddah
Quality Standards: ISO 9001 / SASO / DIN / ASTM
Installation of deep underground multi-way electrical and telecom duct banks beneath historic heritage corridors requiring high crush stiffness under heavy civil construction equipment and zero ovalling during direct burial and concrete encasement.
ALFA supplied certified NEMA TC-2 heavy-wall conduits extruded from virgin resin with integral solvent bell ends, accompanied by custom fabricated sweep bends and DIN 19531 drainage lines. Scheduled flatbed truckloads were coordinated directly with the Riyadh laydown logistics desk.
| Product Category | Standard & Specification | Nominal Sizing Delivered | Jointing & Connection Type | Installation Environment |
|---|---|---|---|---|
| Rigid PVC Electrical Conduit | NEMA TC-2 EPC-40 | 2" to 6" (60mm to 168mm) | Integral Bell Socket | Underground MV/LV power duct banks |
| Heavy-Duty Conduit | NEMA TC-2 EPC-80 | 3" to 4" | Solvent Cement Socket | Roadway crossings & high wheel-load zones |
| Building DWV Drainage | DIN 19531 | 50mm to 160mm | Solvent-Weld Joint | Soil, waste, and roof rainwater drainage |
| Fabricated Sweep Bends | NEMA TC-2 & DIN | 60mm to 168mm (R=3D to 6D) | Flanged / Spigot | Substation entries & directional cable turns |
Detailed answers addressing engineering considerations, jointing, testing, and consultant submittals.
ALFA supplied verified packages of Rigid PVC Electrical Conduits conforming to NEMA TC-2 EPC-40 and EPC-80 (2" to 6"), custom fabricated long-radius sweep bends, and DIN 19531 inside-building drainage pipes, fully certified for underground utility corridors.
NEMA TC-2 EPC-40 specifies substantially thicker wall geometry and higher crush resistance, essential for surviving direct earth burial under heavy vibratory roller compaction and concrete encasement without cross-sectional ovalling.
ALFA's high-purity virgin resin compounding with organic calcium-zinc thermal stabilizers provides a Vicat softening temperature exceeding 79°C, preventing thermal creep, sag, or deformation during open trench exposure.
Conduits featured precision integral solvent-cement sockets compliant with ASTM D2855. Using heavy-bodied solvent cement, the joints fuse into a continuous watertight polymer bond that prevents concrete slurry or groundwater ingress.
The mirror-smooth extruded interior bore delivers a dynamic friction coefficient (μ < 0.22), significantly reducing winching tension and eliminating cable sheath scoring during long-distance medium-voltage cable pulling runs.
The Material Approval Request (MAR) packet included ALFA's Saudi Aramco Vendor Approval (#10116102), ISO 9001:2015 certificates, SASO compliance licenses, independent lab crush test sheets, and batch Mill Test Certificates (MTC 3.1).
Direct articulated flatbed trucks were dispatched from ALFA's manufacturing plant in 3rd Industrial City, Jeddah, KSA, coordinated with site gate passes for scheduled phased deliveries to avoid contractor laydown congestion.
Yes. Our Jeddah fabrication shop manufactured custom large-radius sweep bends (radius = 3D to 6D, 45° and 90°) to prevent tight cable bend radiuses at duct bank entries and transformer pad transitions.
ALFA supplied DIN 19531 building soil and waste drainage pipes and fittings (50mm to 160mm) engineered for high flow capacity and complete resistance to alkaline building laundry discharges and sanitary waste.
Yes. NEMA TC-2 EPC-80 heavy-wall conduit provides superior dielectric breakdown strength (>20 kV/mm) and exceptional impact resistance, ideal for encasement beneath primary road and utility infrastructure crossings.
Saudi Aramco Vendor Registration # 10116102 validates rigorous factory QA/QC and cybersecurity compliance (SACS-002), providing immediate confidence to international consulting engineering teams.
Installed conduit runs underwent standard mandrel pull-through testing (95% diameter proving pig) to verify zero deflection or obstruction, followed by air pressure testing of solvent joints with zero recorded defects.
Yes. Contractors bidding on subsequent development phases in Diriyah and Riyadh can request identical consultant-approved MAR submittal packages directly from our commercial office.
Submit tender BOQ schedules via our portal at /procurement/upload-boq.html or email sales@alfaalarabia.co for factory-direct commercial pricing within 1 business hour.
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