High-density Polyethylene Piping Products
Large-diameter pipe: super-size the benefits of HDPE.
Longer life, more material flexibility, lower maintenance and leakproof reliability. In sizes up to 136 or 157 inches — delivered with everything you need in a large-diameter solution.
Why choose ISCO for your large-diameter pipe needs?
No other provider has the product selection and expertise in HDPE large-diameter applications. From pipe and custom fittings to the McElroy Talon™ large-diameter fusion machine, ISCO has everything you need to design the benefits of HDPE into your large-diameter project:
- Available in sizes up to 136" (up to 157" in low-pressure or gravity applications)
- Reliable and cost-effective for a range of applications
- 100-year design life, leakproof joints; virtually maintenance-free
- High resistance to chemicals and corrosion, wear and tear, and UV radiation
- Large-diameter HDPE fittings and structures such as manholes, tanks and vaults
- Lighter weight for fast and efficient installation both on- and offshore
- Designed for high-volume flow applications and pressurized ratings
Unparalleled HDPE piping expertise
ISCO is the expert in large-diameter HDPE pipe with extensive experience and fusion machines to install large systems for a range of applications including irrigation, industrial, waste/stormwater, irrigation, municipal, landfill and more.
Fusion training, prefabrication, technical guidance and project support for a comprehensive pipe project solution. Our highly skilled team of design professionals will work with you to develop the right solution for a pipeline project of any size.
Large-diameter HDPE pipe and fittings are ideal for a wide range of applications — in solid- and profile-wall (Spirolite®) product lines — durable and flexible enough to support installation methods such as horizontal directional drilling.
Large-diameter fusion: Think big
ISCO is the only industry partner with two of McElroy’s biggest machines for large-diameter pipe projects.
McElroy’s Talon™ 2000 has revolutionized large-diameter pipe fusion with its innovative jaw design, self-loading and self-propelled controls, touch-screen interface and data logging features.
Large-diameter versatility
ISCO is the go-to resource for large-diameter pipe projects.
Solid-wall HDPE pipe
Full selection of solid-wall HDPE pipe, fittings and structures in diameters up to 136" OD
Spirolite®
ISCO’s profile-wall HDPE pipe, offers a lightweight solution in diameters up to 120"
Fusion machines
McElroy’s TracStar iSeries large-diameter fusion machines provide performance, control and reliability
Large-diameter applications
ISCO's large-diameter pipe products have an impressive track record of success in a variety of applications.
Ideal for water/wastewater applications with its H2S resistance, leak-free joints, long product life and cost-effectiveness
Durable, corrosion- and chemical-resistant, requiring no cathodic protection, linings or wraps; little or no maintenance
The durability and installation benefits of HDPE with in-house fabrication for virtually limitless design options
Faster, easier, less costly no-dig installation with minimal traffic disruption through the Snap-Tite® large-diameter lining system
More durable and environmentally sound than metal or concrete pipe for irrigation districts, small hydro producers and municipalities
A less costly, longer-term alternative to concrete piping — leakproof joints and easier install with lower maintenance and operational costs
Access our deep HDPE resources
Field Reports
24-Inch HDPE Water Main Emergency Repair
When a critical 24-inch domestic water main serving Texas A&M University developed a leak, ISCO deployed the Footage Tools C2400 squeeze tool to isolate the HDPE pipeline, allowing crews to complete repairs quickly and restore service with minimal disruption to campus operations.
Posts
The Perfect Match: Why HDPE Is Built for Rural Water Systems
Rural water systems face unique challenges, from long transmission distances to limited rate bases. Learn why HDPE pipe delivers durability, leak resistance, and long-term value for rural water infrastructure projects.
Posts
Why Large-Diameter HDPE is Replacing Concrete and Steel in Stormwater and Sewer Projects
Large-diameter HDPE pipe is increasingly replacing concrete and steel in stormwater and sewer projects. With faster installation, corrosion resistance, and lower lifecycle costs, HDPE offers municipalities, engineers, and contractors a more durable solution for modern infrastructure demands.
