DWC Half Round Pipes, also known as Split DWC Ducts, are a modern and highly efficient solution for protecting underground electrical, telecom, and optical fiber cables. Manufactured using high-quality HDPE material, these pipes are specially designed for applications where cables are already laid and full pipe replacement is not possible.
At GARK Polyplast Pvt. Ltd., we manufacture DWC Half Round Pipes from full round Double Wall Corrugated (DWC) HDPE pipes, ensuring the same strength, durability, and performance as standard DWC pipes, while offering faster and more flexible installation.
DWC Half Round Pipes are longitudinally split versions of standard DWC HDPE pipes. They feature:
Corrugated outer wall for high mechanical strength
Smooth inner wall to protect cables from abrasion and damage
These pipes are designed to be placed around existing cables or ducts, making them ideal for retrofit, repair, and upgrade projects.
Unlike traditional RCC half round covers, DWC Half Round Pipes are lightweight, corrosion-resistant, and easy to handle, making them the preferred choice for modern infrastructure projects.
GARK DWC Half Round Pipes are produced from full round DWC pipes manufactured as per:
IS 14930 Part-II
IS 16098 / IS 16205 (for DWC pipes)
This ensures:
Consistent wall thickness
High ring stiffness (SN class)
Long service life even under heavy loads
Our advanced manufacturing process ensures precision, durability, and uniform quality across every pipe length.
Manufactured from high-density polyethylene (HDPE)
Corrugated outer surface for high load-bearing capacity
Smooth inner surface for safe cable protection
Split design for easy installation over live cables
High resistance to impact, chemicals, and moisture
Lightweight compared to RCC alternatives
Long service life of 50+ years
Low maintenance and cost-effective solution
Suitable for harsh underground conditions
Eco-friendly and recyclable material
1. Easy Retrofit Installation
DWC Half Round Pipes can be installed without removing existing cables, saving time, labour, and project costs.
2. Superior Mechanical Strength
The corrugated outer wall protects cables from external loads, traffic pressure, and soil stress, especially under roads and highways.
3. Corrosion & Chemical Resistance
Unlike RCC or metal covers, HDPE does not rust, crack, or degrade due to chemicals or moisture.
4. Lightweight & Faster Handling
Their low weight allows quick transportation, easy handling, and faster installation, even in confined urban areas.
5. Long-Term Cost Savings
Minimal maintenance, no corrosion repairs, and long lifespan result in a lower total lifecycle cost.
DWC Half Round Pipes are widely used in:
Underground electrical cable protection
Telecom and OFC (Optical Fiber Cable) networks
Road crossings and highway cable corridors
Railway cable protection and retrofitting
Urban infrastructure and smart city projects
CCTV and surveillance cabling
Stormwater-adjacent cable installations
Industrial and utility cable management systems
Sewage and drainage areas with existing utilities
These pipes are especially useful where prior cable laying exists and excavation needs to be minimized.
At GARK Polyplast Pvt. Ltd., we focus on delivering reliable, durable, and future-ready piping solutions. Our DWC Half Round Pipes are trusted by contractors, infrastructure developers, and government projects across India.
Why GARK?
ISO 9001 certified manufacturing unit
Proven expertise in HDPE & DWC piping systems
Strict quality control and testing
Custom sizes and project-specific solutions
Competitive pricing and timely delivery
Strong after-sales and technical support
Material: High Density Polyethylene (HDPE)
Pipe Type: Split / Half Round DWC Pipe
Structure: Double wall (corrugated outside, smooth inside)
Installation: Over existing cables
Durability: High impact & load resistance
Service Life: 50+ years
DWC Half Round Pipes are a smart, modern, and efficient solution for protecting underground cables in both new and retrofit projects. Their split design, combined with the strength of DWC HDPE pipes, makes them ideal for urban infrastructure, highways, railways, and telecom networks.
By choosing GARK Polyplast DWC Half Round Pipes, you invest in durability, safety, ease of installation, and long-term cost savings. Our commitment to quality and innovation ensures that every project is protected with confidence.
For bulk orders, specifications, or project enquiries, contact GARK Polyplast Pvt. Ltd. today.
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Have Questions
DWC Half Round Pipes are used for protecting underground electrical, telecom, and optical fiber cables, especially where cables are already installed.
Yes, they are ideal for road and highway crossings due to their high load-bearing capacity.
They are placed directly over existing cables, eliminating the need for cable removal.
Yes, HDPE material provides excellent resistance to corrosion, chemicals, and moisture.
They offer a service life of more than 50 years under normal operating conditions.
Yes, DWC Half Round Pipes are specially designed for retrofit and rehabilitation projects where underground cables are already laid. Their split design allows easy installation over existing cables without disturbing live networks, making them ideal for urban upgrades, road crossings, and repair works.
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