High-Performance HDPE End Closure for Duct & Pipe Protection (KSA & Gulf Compliant)
The End Cap HDPE – Thread Type 25MM is a critical component that securely seals, protects, and safely terminates HDPE ducts, microducts, feeder tubes, and pipelines for telecommunication. This end cap is high-density polyethylene (HDPE) and features side threading that blocks dust, moisture, soil, sand, and insects from penetrating the duct system, thereby preserving the system’s protection and performance for a longer period.
In Gulf nations like Saudi Arabia (KSA), UAE, Qatar, Kuwait, Oman, and Bahrain, infrastructure networks are facing extreme environmental conditions characterized by high temperatures, intense UV radiation, desert dust, saline air, and heavy construction activities. The 25MM thread-type HDPE end cap is one of the products that can bear these environmental challenges and still provide excellent strength, weather resistance, and durability.
An HDPE threaded end cap is a sealing accessory designed to screw onto the threaded end of a pipe or duct. It provides:
A tight, leak-proof closure
Mechanical protection
Environmental sealing
Safety during transportation & installation
The 25MM thread type is widely used in FTTH networks, telecom ducting, electrical conduit systems, microduct protection, irrigation pipelines, water feeder lines, and civil construction projects.
The End Cap HDPE – Thread Type 25MM is a critical component that securely seals, protects, and safely terminates HDPE ducts, microducts, feeder tubes, and pipelines for telecommunication. This end cap is high-density polyethylene (HDPE) and features side threading that blocks dust, moisture, soil, sand, and insects from penetrating the duct system, thereby preserving the system’s protection and performance for a longer period.
In Gulf nations like Saudi Arabia (KSA), UAE, Qatar, Kuwait, Oman, and Bahrain, infrastructure networks are facing extreme environmental conditions characterized by high temperatures, intense UV radiation, desert dust, saline air, and heavy construction activities. The 25MM thread-type HDPE end cap is one of the products that can bear these environmental challenges and still provide excellent strength, weather resistance, and durability.
An HDPE threaded end cap is a sealing accessory designed to screw onto the threaded end of a pipe or duct. It provides:
A tight, leak-proof closure
Mechanical protection
Environmental sealing
Safety during transportation & installation
The 25MM thread type is widely used in FTTH networks, telecom ducting, electrical conduit systems, microduct protection, irrigation pipelines, water feeder lines, and civil construction projects.

The main reasons why HDPE is used in Gulf infrastructure systems are as follows:
| Parameter | Details |
|---|---|
| Product Name | End Cap HDPE – Thread Type 25MM |
| Material | Virgin HDPE (PE100 Grade) |
| Thread Type | External / Internal screw threading (as required) |
| Outer Diameter Compatibility | 25 mm ducts or microducts |
| Color | Black (UV stabilized) |
| UV Resistance | Yes (suitable for harsh Gulf sunlight) |
| Temperature Resistance | -20°C to +80°C |
| Pressure Endurance | Suitable for PN 6–PN 16 pipe systems |
| Ingress Protection Level | High dust and moisture sealing |
| Installation | Manual tightening – no tools required |
| Standard Compliance | ISO 4427 / DIN 8074 / IEC telecom ducting standards |
| Application Use | Duct sealing, microduct termination, pipe end protection |
This mechanism ensures a very secure grip, completely eliminating the risk of loosening due to vibrations, handling, or movements in the pipe.
This is the ideal solution for the GCC countries, where dust storms and humidity are likely to spoil the insides of the ducts.
The product proves itself to survive the outdoor extreme heat and sun for a long time.
The product will be unbreakable during the shipping or installation process.
The product still gives good mechanical protection while at the same time reducing the weight of the materials to be handled.
The operating life of HDPE is prolonged in both coastal and desert situations since it does not rust like metal end caps.
No expensive tools or equipment are needed—just tightening the screws will get the work done.
Survives temperatures reaching 55°C–60°C, common in Gulf summers.
Stable performance against:
Sandstorms
Humidity
Saltwater corrosion
Direct sunlight
High-pressure flushing systems
Low cost compared to metal end closures but equally strong and long-lasting.
Used widely in:
Fiber Optic Networks
FTTH / FTTx
5G Infrastructure
LV / HV Electrical Conduits
Water Distribution Lines
Fiber optic cables are secured by closing up the ends of microducts (25 mm).
Protection of the moisture entrance in low-voltage/high-voltage cable systems.
The seal is put on unused pipe ends when installing and doing maintenance.
Used in the pipes in agriculture and landscaping.
Protection of duct ends at:
- construction sites
- trench crossings
- road-laying works
Dirt-free duct delivery to the project sites is assured.
Remove dust, sand, or debris.
Match the cap threads with the duct threads.
Rotate clockwise until securely tightened.
Ensure no gaps or loose alignment.
Used for water or telecom ducts that require airtight closure.
✔ Universal application across Gulf-quality HDPE conduits.
✔ Lifetime that lasts even in the hottest climates.
✔ Total absence of servicing.
✔ Very robust in both tension and compression.
✔ Avoids interruption in the network.
✔ Sealing quality as good as that of the telephone companies.
| Feature | HDPE End Cap | Rubber Cap | Metal Cap |
|---|---|---|---|
| Durability | High | Low | High |
| Rusting | No | No | Yes |
| UV Resistance | Excellent | Weak | Good |
| Flexibility | Moderate | High | Low |
| Cost | Low | Low | High |
| Best For | Telecom, Electrical | Temporary sealing | Permanent hydraulic lines |
The End Cap HDPE – Thread Type 25MM is an exceptionally durable, multi-purpose, and high-efficiency sealing solution made particularly for the Gulf region’s extreme environmental conditions. You may be sealing microducts, working with telecom ducting, protecting electrical conduits, or closing water pipelines, this HDPE end cap will provide you with a long-lasting reliable, moisture resistant, and structurally safe sealing solution.
That is why the product is one of the preferred end closure solutions for big projects in the region due to its UV-stabilized material, precise threading, lightweight construction, and long life.
For companies that want to keep their networks intact, minimize outages, and increase the life of their systems—this 25MM threaded HDPE end cap is a must-have product.
It seals and protects duct ends from dust, moisture, insects, and physical damage.
Yes, it is UV-resistant, heat-resistant, and built for GCC environmental conditions.
Absolutely—commonly used for FTTH, FTTx, 5G, and backbone fiber ducts.
No, installation is manual and requires no tools.
Made from virgin PE100 HDPE for maximum durability.
Yes, suitable for PN 6–PN 16 duct systems.
No—HDPE is completely corrosion-free.
Yes, it can be removed and reused multiple times.
Generally black, with UV stabilization.
Yes, it matches all standard 25MM HDPE duct specifications used in GCC.