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Large Diameter PVC Utility Duct – 225 mm (9″) – DB-120
Large Diameter PVC Utility Duct – 225 mm (9″) DB‑120
Heavy-Duty Direct Burial Conduit for Power, Telecom & Fiber Networks in KSA & Gulf Region
Technical Specifications
| Specification | Details |
|---|---|
| Nominal Diameter | 225 mm (9″) |
| Material | High-grade rigid PVC |
| Type | DB‑120 Heavy Duty, Direct Burial |
| Standard Lengths | 2 m, 3 m, 6 m |
| Joint Type | Solvent Weld or Mechanical Couplers |
| Wall Thickness | DB‑120 Heavy Duty specification |
| Color | Grey (Standard) |
| Operating Temp | −10 °C to +60 °C |
| Compliance | ASTM, NEMA, IEC, UL/ETL (optional) |
| Expected Service Life | 30–50+ years |
| Applications | Power, Telecom, Fiber Optic, Utility Networks |
Key Features and Benefits
Heavy-Duty Wall Construction: Provides maximum protection against soil pressure and mechanical impact.
Large 225 mm Diameter: Supports multiple high-capacity cable runs.
Smooth Interior Surface: Facilitates easy cable pulling and minimizes friction.
Corrosion & Chemical Resistance: Perfect for Gulf region soils with high salinity and alkalinity.
Non-Conductive Material: Ensures safety in electrical installations.
Direct Burial Capability: Eliminates the need for concrete encasement.
Lightweight & Easy Handling: Reduces labor and equipment costs.
Long Lifecycle: 30–50+ years of performance under harsh conditions.
Standardized Compliance: Meets ASTM, IEC, NEMA standards for safe and reliable operation.
Future-Ready Design: Supports network expansions and multiple cable installations.
Applications Across Sectors
- Residential Infrastructure: well-organized underground electric lines, communication networks, and fiber optic installation.
- Commercial Projects: Reliable cable management is needed in office buildings, shopping malls, and business centers.
- Industrial Facilities: Heavy-duty cable is used in the production of goods and in factories, refineries, and storage places.
- Municipal Utilities: Smart city networks, streetlights, traffic systems, and city power distribution are among the utilities' offerings.
- Telecom & Fiber Optic Networks: Large-scale fiber and telecommunication network installation.
Why PVC DB‑120 is Ideal for Gulf Region
- High Heat Resistance: It is able to withstand great heat and still keep its structure like in a desert.
- Saline and Alkaline Soil Resistance: The plant is tolerant to the soil with high salt content or the one with high alkali content.
- High Mechanical Strength: The soil cannot spoil the cables and the surface minor impacts cannot affect the cables due to their mechanical strength.
- Lightweight Construction: It facilitates the carrying on and the labor required for installation is less.
- Long-Term Durability: Maintenance is low because the cable lasts for 30-50+ years.
Installation Guide
Site Assessment & Trench Design: Plan route, depth, and alignment.
Excavation: Remove rocks, debris, and prepare trench base.
Bedding Preparation: Smooth sand or soil layer to protect duct.
Laying Duct Sections: Align carefully with proper slope and straightness.
Jointing: Use solvent weld or mechanical couplers for secure connections.
Cable Pulling: Insert cables using lubricants to prevent friction damage.
Backfilling: Compact in layers to secure ducts.
Warning Tape Installation: Place above ducts to alert future excavators.
Accessories & Fittings
Solvent Weld & Mechanical Couplers – Ensure leak-proof connections.
Elbows (45° & 90°) – For smooth directional changes.
Pulling Eyelets – Facilitate cable installation.
Warning Tapes – Provide safety during future excavation.
Spacer Clips & Support Saddles – Maintain alignment and spacing.
Performance in Harsh Conditions
- Survives harsh conditions of desert heat, sandy soil and saline areas.
- A smooth interior avoids any damage to the cable in long pulls.
- Offers an extra protection layer against soil pressure and surface loads.
- It stays good in performance for a long time even under the extreme Gulf conditions.
Maintenance & Inspection
- Periodic inspections joints, fittings and warning tapes should be performed.
- No maintenance needed at all since the durable construction of PVC.
- Keep as-built drawings of the project for future expansion or repair.
Cost Efficiency & Lifecycle Advantages
No concrete encasement required, reducing installation costs.
Lightweight design allows easy handling and faster installation.
Long service life ensures decades of reliable operation.
Supports future cable expansions without additional excavation.
Comparison: DB‑120 vs DB‑100 vs DB‑60
| Feature | DB‑120 225 mm | DB‑100 225 mm | DB‑60 225 mm | Steel Conduit |
|---|---|---|---|---|
| Wall Strength | Very High | High | Medium | Very High |
| Direct Burial | Yes | Yes | Limited | Yes |
| Corrosion Resistance | Excellent | Excellent | Good | Poor |
| Installation Cost | Medium | Medium | Low | High |
| Service Life | 30–50+ yrs | 30–50 yrs | 20–30 yrs | 15–25 yrs |
Conclusion
The Large Diameter PVC Utility Duct - 225 mm DB‑120 is designed for underground cable installations that require protection against heavy-duty, corrosion-resistant, and long-term durability. The strong design, the wide opening as well as the option to bury directly are the main reasons this duct is used across the KSA and Gulf region in residential, commercial, industrial, and municipal projects.
By picking the DB‑120 225 mm duct, you get an infrastructure that is not only cost-effective and safe but also ready for the future that can deal with the harshest Gulf environmental conditions for power, telecom, and fiber networks.
Frequently Asked Questions (FAQs)
1. What is the Large Diameter PVC Utility Duct 225 mm DB‑120 used for?
It is used for high-capacity underground cable installations, including power, telecom, and fiber optic networks.
2. Can it be buried directly without concrete?
Yes. Its DB‑120 heavy-duty construction supports direct burial installation.
3. Difference between DB‑120 and DB‑100 ducts?
DB‑120 has thicker walls and higher mechanical strength, suitable for heavier loads and larger diameters.
4. Is PVC DB‑120 225 mm suitable for Gulf climates?
Yes. Resistant to high temperatures, sandy soils, and saline coastal conditions.
5. Can fiber optic and telecom cables be installed?
Yes. Smooth interior ensures easy and safe cable pulling.
6. What lengths are available for DB‑120 225 mm ducts?
2 m, 3 m, and 6 m; sections joined using solvent weld or mechanical couplers.
7. Is PVC DB‑120 electrically safe?
Yes. PVC is non-conductive, ensuring electrical safety.
8. Compatible fittings and accessories?
Elbows, couplers, pulling eyelets, warning tapes, and spacers.
9. Expected service life?
Typically 30–50+ years, depending on soil and installation quality.
10. Compliance with international and Gulf standards?
Yes. Meets ASTM, NEMA, IEC, and optional UL/ETL certifications.