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HDPE Corrugated Duct 77 mm OD, Without Sub-ducts
HDPE Corrugated Duct 77 mm OD (Without Sub-Ducts)
Durable HDPE Corrugated Duct for Cable Protection
Why 77 mm HDPE Corrugated Duct Is Popular in KSA and GCC
The Middle East, the 77 mm duct, is seen as the universal ducting size that can be used for numerous cable protection applications. The factors that lead to its acceptance in Saudi Arabia, UAE, Qatar, Kuwait, Bahrain, and Oman are numerous:
✔ Ideal for Fiber Optic & Telecom Cables
The duct size is large enough that the backbone fiber optics regularly used in FTTH, FTTX, and broadband expansion projects can be contained.
✔ Perfect for Electrical & Power Cables
It can carry both LV (Low Voltage) and MV (Medium Voltage) cables without any issues.
✔ Strong Enough for Road & Infrastructure Projects
With its high structural rigidity, it can resist heavy soil loads and vehicular loads—so it is perfect for underground installation under highways, railways, bridges, and airport runways.
✔ Government Authorities' Approval
77 mm HDPE ducts often meet the requirements of authorities, depending on the manufacturer, such as:
- Ministry of Communications & IT (KSA)
- Saudi Telecom (STC) requirements
- SEC (Saudi Electricity Company)
- Ashghal (Qatar)
- DEWA (Dubai)
- ADDC/AADC (Abu Dhabi)
- Kahramaa (Qatar)
✔ Economical & Durable
HDPE corrugated ducts are the most economical and have the longest lifespan compared to PVC and metal conduits.
Technical Specifications of HDPE Corrugated Duct 77 mm OD
Below is a detailed specification sheet suitable for procurement teams and tender submissions:
HDPE Corrugated Duct 77 mm – Specifications Chart
| Parameter | Specification |
|---|---|
| Product Name | HDPE Corrugated Duct 77 mm OD (Without Sub-Ducts) |
| Outer Diameter (OD) | 77 mm |
| Inner Diameter (ID) | Typically 63–67 mm (depending on manufacturer) |
| Material Type | High-Density Polyethylene (HDPE), PE 80 or PE 100 grade |
| Structure | Double-Wall: Corrugated exterior + Smooth inner wall |
| Wall Type | Twin-wall corrugated |
| Compliance Standards | IEC, ISO 4427, BS EN 61386, local authority approvals |
| Color | Black (with optional stripes: red, blue, orange, green) |
| Length Options | 50 m, 100 m, 200 m coils (custom lengths available) |
| UV Resistance | Yes (Carbon Black additive) |
| Temperature Resistance | -20°C to +80°C |
| Chemical Resistance | Excellent against acids, alkalis, & industrial chemicals |
| Tensile Strength | High (varies by manufacturer) |
| Crush Resistance | Strong – suitable for underground heavy load applications |
| Fire Retardant Options | On request |
| Inner Surface | Low friction, designed for smooth cable pulling |
| Standard Accessories | Couplers, end caps, cable pulling rope, warning tapes |
Key Features & Advantages
✔ 1. Superior Flexibility
The enhanced flexibility of the duct is a result of its corrugated composition, which allows for the duct's installation in curved and uneven places without cracking.
✔ 2. Extra High Mechanical Strength
The duct is built to withstand:
- Soil pressure
- Rock impacts
- Heavy vehicle loads
- Construction mistakes
- It has such outstanding crushing resistance that it can be used for underground installation very deep in the GCC.
✔ 3. Weather & UV Resistant
The duct is produced with carbon black additives, which allow it to endure Saudi and Gulf climate conditions that are characterized by very high levels of UV exposure.
✔ 4. Corrosion & Chemical Resistant
In contrast to metal ducts, HDPE pipes do not suffer from rust and corrosion. On top of that, it does not react with the chemicals present in desert soils and industrial areas.
✔ 5. Smooth Inner Wall
Less resistance is ensured and thus cables can be pulled easily, thereby preventing cable damage.
✔ 6. Lightweight & Easy to Install
HDPE duct is the contractors' most preferred choice since it can reduce the installation time and cost by up to 40% as compared to traditional PVC and metal conduits.
✔ 7. Long Service Life (50+ years)
The product has already demonstrated its long life under GCC field conditions.
✔ 8. Leak-Proof & Water-Resistant
The product can be effectively used in flooded areas and coastal regions that have high water tables.
✔ 9. Cost-Effective
The product has become popular among the large infrastructure projects where it is required to use thousands of meters of ducting due to its low cost.
Applications of HDPE Corrugated Duct 77 mm in KSA and GCC
This duct is widely used across multiple sectors. Some major applications include:
A. Telecom & Fiber Optic Networks
FTTH / FTTX projects
5G infrastructure
Backbone fiber cable networks
Telecom towers & BTS sites
Long-distance fiber optic routes
B. Electrical Cable Protection
Street lighting cables
Highway electrical networks
Power distribution networks
Airport runway lighting systems
Solar plant cable routing
C. Infrastructure Projects
Smart city developments
Metro rail projects
Under-bridge cable protection
Tunnels & subways
Water desalination plants & industrial zones
D. Oil & Gas Installations
Cable routing in refineries
Pipeline monitoring systems
SCADA communication cables
E. Renewable Energy Projects (KSA Vision 2030)
Solar farms
Wind turbine systems
Energy storage facilities
As Saudi Arabia rapidly expands its renewable energy footprint under Vision 2030, demand for durable cable protection systems like HDPE corrugated ducts is rapidly increasing.
How HDPE Corrugated Duct 77 mm OD is Manufactured
The duct is produced via the twin-wall corrugation extrusion technique:
✔ Step 1 – HDPE Material Selection
Only the most durable and elastic kind of PE (80/100) is utilized.
✔ Step 2 – Extrusion
- While the corrugated exterior and the plain interior are created together
- during the process of injecting molten HDPE into the corrugator.
✔ Step 3 – Cooling & Solidification
The product gets cooled in water and its structure gets solidified in this way.
✔ Step 4 – Coiling
The duct is rolled up in dimensions of 50 m, 100 m, or any other desired length.
✔ Step 5 – Quality Testing
Tests conducted include:
- Crush resistance
- Impact resistance
- UV testing
- Leakage testing
- Tensile strength testing
✔ Step 6 – Packaging & Delivery
The coils are strapped and packaged for transport across the Gulf region.
Installation Guide – How the Duct is Used in Real Projects
nstalling HDPE Corrugated Duct 77 mm requires specific steps to ensure long-term performance.
Step 1: Trench Preparation
Digging trenches to depth required by local telecom/electrical codes.
Removing rocks and debris to avoid damage.
Step 2: Base Sand Bedding
A thin sand layer is placed to cushion the duct.
Step 3: Duct Laying
The duct is uncoiled carefully and placed in the trench.
Advantages:
Flexible structure allows smooth laying.
No cracking due to bends.
Step 4: Coupling & Joining
Specialized couplers ensure leak-proof connection.
Step 5: Pulling Cables
A pulling rope is often pre-inserted during manufacturing.
Step 6: Backfilling
Trench is backfilled with sand and compacted.
Step 7: Warning Tape
A colored warning tape is placed above the duct to alert excavators.
Why HDPE Corrugated Duct is Better than PVC or GI Conduits
| Feature | HDPE Corrugated | PVC | GI / Metal |
|---|---|---|---|
| Flexibility | Excellent | Low | None |
| Corrosion | No | No | Yes |
| Weight | Light | Medium | Heavy |
| Installation Speed | Fast | Medium | Slow |
| Durability | 50+ years | 10–20 yrs | 10–15 yrs |
| Cost | Low | Low | High |
Market Demand in KSA & GCC
The tremendous expansion of the infrastructure in the area has led to the constant rise of the demand for corrugated ducts.
📈 Major Factors in Saudi Arabia
- Vision 2030 giant projects
- NEOM, Qiddiya, Red Sea Project
- 5G rollout
- Smart city and smart grid interconnection
📈 Major GCC Factors
- Qatar’s infrastructural investments
- UAE’s intelligent mobility projects
- Kuwait and Oman telecom upgrades
How to Choose the Best HDPE Corrugated Duct Supplier in GCC
When comparing suppliers, evaluate:
✔ Compliance with standards
✔ Raw material quality (PE80/PE100)
✔ Thickness consistency
✔ UV and chemical resistance
✔ Availability of couplers & accessories
✔ Pricing and delivery capability
✔ Approvals from regional authorities
Conclusion
The HDPE Corrugated Duct with 77 mm OD, sub-ducts not included, is considered to be the most reliable, durable, and cost-effective cable protection solution in Saudi Arabia and the Gulf region. Its properties of flexibility, mechanical strength, and weather resistance adapt it perfectly for telecom, electrical, civil engineering, and industrial applications. With the rapid growth of fiber optic networks, smart cities, and power distribution systems in the GCC, the need for high-quality HDPE corrugated ducts is still increasing.
Choosing the right supplier and confirming conformity with local regulations, contractors, and engineers can get long-lasting performance and reduced maintenance costs making the 77 mm HDPE duct one of the most preferred options in the region.
Frequently Asked Questions (FAQs)
Q1. What is the inner diameter of a 77 mm HDPE corrugated duct?
Typically 63–67 mm depending on manufacturer.
Q2. Can the duct be used for fiber optic cables?
Yes, it is commonly used in FTTH, FTTX, and backbone networks.
Q3. Is this duct approved for usage in Saudi Arabia?
Most manufacturers offer versions compliant with STC, SEC, MOT/KSA, and other standards.
Q4. What colors are available?
Black is standard; stripes available in red, blue, green, orange.
Q5. Can it withstand high temperatures in the Gulf region?
Yes, HDPE ducts are designed for +80°C operating temperatures.
Premium HDPE Corrugated Duct 77mm (Without Subducts) – Suppliers, Manufacturing & Delivery
The 77mm HDPE Corrugated Ducts Without Subducts provides extensive capabilities to protect underground cables, including telecommunications, fiber optics, and electrical infrastructure. This duct is built from high-density polyethylene (HDPE), which provides a very flexible, crush-resistant, long-lasting option for challenging construction conditions.
Saudi Ducts connects EPC contractors, telecommunications operators and developers of infrastructure projects directly with certified manufacturers and verified suppliers throughout the Kingdom of Saudi Arabia and the Gulf Cooperation Council (GCC). The platform allows users to locate approved suppliers of corrugated ducts, telecommunications infrastructure products that conform to regulations, and large-scale distribution networks for infrastructure projects.
Product Benefits
- High-strength HDPE corrugation construction for underground installations
- Exceptionally tough and flexible for use in trench installations
- Ideal for supporting the protection of fibre optic cables and for use in telecommunication networks
- Resistant to humidity, chemicals and environmental stress.
- Provides access to reliable sources and bulk purchasing.
HDPE Corrugated Duct Technical Guide & Industry Best Practices
HDPE Corrugated Duct vs PVC Telecom Duct – Quick Comparison
| Feature | HDPE Corrugated Duct | PVC Telecom Duct |
|---|---|---|
| Flexibility | High | Moderate |
| Impact Resistance | Excellent | High |
| Installation | Ideal for uneven trenches | Straight conduit routes |
| Weight | Lightweight | Heavier |
| Common Applications | Fiber optic networks | Electrical & telecom conduits |
Best Industry Practices for Installing HDPE Corrugated Ducts
• Maintain the recommended trench depth of 70 cm to 120 cm (700 mm to 1200 mm) depending on load conditions of the cable
• Use sand for bedding purposes to protect the duct during construction
• Install a detectable warning tape above the duct for any underground telecommunications.
• Properly space ducts to allow for maintenance to be performed on them.
• Seal points of entry to keep out water and debris from entering into the duct.
• Follow your local installation standards for telecommunications infrastructure.
By following these guidelines, you will provide the maximum possible protection for your cabling and ensure safety of the telecommunications infrastructure and its reliability for the long-term.