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ULTRA FLO®, a pipe with a smooth interior, is the material of choice for storm sewer applications and a lower cost alternative to reinforced concrete pipe. The smooth interior improves hydraulic capacity (Manning’s “n” = 0.012, equal to concrete pipe) while the exterior box ribs provide structural strength.
ULTRA FLO is available manufactured with a variety of coatings such as, Aluminized Type 2 (ALT2), polymer coated, and aluminum material to meet a wide variety of environmental and service life requirements. For projects with limited headroom, ULTRA FLO is available in pipe-arch.
Because ULTRA FLO weighs less than 10% of concrete pipe, handling and installation costs are greatly reduced. Aluminum ULTRA FLO has only 1/35 the weight of concrete pipe.
Lower labor costs also result from fast and easy joining. Contech Quick Stab® joints or coupling bands do not require special skills or tools. Twenty-foot standard lengths mean fewer joints and faster laying.
Shop-fabricated fittings save installation time in the field while providing hydraulically efficient junctions.
| FEATURES | BENEFITS |
|---|---|
|
Smooth Interior |
Manning’s “n” = 0.012, equal to concrete pipe |
|
Exterior box ribs |
Shown to be equivalent to reinforced concrete pipe |
|
Weighs less than 10% of reinforced concrete pipe |
Easier to install, faster installation |
|
Longer lengths than reinforced concrete pipe |
Fewer joints, faster installation, reduced cost |
|
QUICK STAB and coupling banded joints |
No special tools or skills required, faster installation, reduced cost |
Contech large-diameter CMP is used as a deep foundation form at the base of the windmill. CMP is placed vertically to act as a form for the poured-in-place concrete foundation.
Our corrugated metal pipe is the most durable, economic, and widely chosen material for most drainage culverts applications. With a variety of CMP products including helically corrugated HEL-COR® and spiral wound ULTRA FLO®, Contech offers engineers and contractors flexibility in designing drainage solutions to best fit their projects’ exact requirements.
Lining inadequate or failing structures with corrugated metal material or plastic pipe uses little of the available area, thereby preserving the maximum amount of the original opening. Due to the hydraulic efficiency of Contech products, often a smaller structure provides the same hydraulic capacity as the original because of the low Manning “n” factors of A-2000™ and A2™ Liner PVC pipes and HEL-COR® and ULTRA FLO® CMP. Existing culverts and arches are generally lined with structures of the same shape, though slightly smaller in size. Rectangular openings can be lined with round, elliptical or pipe arch structures. Corrugated metal structures can fit almost any existing shape.v
No other storm sewers or drainage pipe structure offers the range of structural strength that’s available with ULTRA FLO® - which continues to perform where rigid pipe fails. We offer coatings and linings that will provide a minimum of 75-year service life for most soil/water conditions. ULTRA FLO provides a Manning’s “n” = 0.012, equal to concrete pipe and other smooth wall drainage products. There are custom fittings and coatings to meet your project needs.
ULTRA FLO is Contech’s spiral rib corrugated metal pipe with a smooth interior wall designed for storm sewer and drainage applications. The smooth interior provides hydraulic efficiency equivalent to reinforced concrete pipe while the exterior box ribs deliver structural strength.
ULTRA-FLO® is commonly used for:
Its combination of hydraulic performance and structural capability makes it ideal for municipal, DOT, commercial, and industrial drainage projects.
ULTRA-FLO® is designed as a lower-cost alternative to reinforced concrete pipe. It offers:
ULTRA-FLO® weighs less than 10% of reinforced concrete pipe, helping contractors reduce equipment and labor requirements during installation.
ULTRA-FLO® is available in diameters ranging from 18 inches to 120 inches with multiple wall thicknesses available, including 16, 14, 12, and 10 gage steel.
ULTRA-FLO® is available in:
Pipe-arch shapes are commonly used in applications with limited cover or restricted vertical clearance.
ULTRA-FLO® can be manufactured with several protective coatings and materials, including:
These options allow engineers to select the proper solution based on corrosion, abrasion, and service life requirements.
ULTRA FLO’s lightweight design simplifies transportation, handling, and placement in the field. Additional installation advantages include:
QUICK STAB® joints and coupling bands also reduce labor and installation time because they require no specialized tools or skills.
ULTRA-FLO® can utilize:
These joint systems help provide efficient installation and reliable field performance.
Yes. ULTRA-FLO® can be used in underground stormwater detention and conveyance systems because of its structural strength, large diameter range, hydraulic efficiency, and availability of fabricated fittings.
Yes. ULTRA-FLO® is commonly used for relining deteriorating culverts and drainage structures. Its smooth interior and hydraulic efficiency often allow a smaller liner pipe to maintain or improve flow capacity while extending service life.
ULTRA-FLO® systems can include a variety of fabricated components such as:
These accessories simplify complex drainage system layouts and field installation.
As a flexible pipe system, ULTRA-FLO® can accommodate soil movement and settlement better than rigid pipe systems in many applications. Corrugated metal pipe systems are widely recognized for their adaptability in poor soils, soft ground, and variable installation conditions.
ULTRA-FLO® is manufactured to ASTM A760 and AASHTO M36[JS1] standards for corrugated metal pipe systems used in drainage and storm sewer applications.
Key benefits include:
These advantages make ULTRA-FLO® a preferred solution for many stormwater infrastructure projects.
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Our team is ready to provide you with expert advice and assistance on local regulatory requirements, resulting in faster approvals.
Our engineers can review your requirements, weigh all options, and recommend the optimal solution to integrate with your site designs.
Our engineers can assist by providing product specific engineering calculations such as hydraulics, buoyancy, foundation reactions, and unit sizing.
We can quickly provide engineer’s cost
estimates to assist with your solution
selection process.
Our engineers can provide site-specific drawings for proposals, project meetings, and submittals, helping you be more efficient with your time.
Contractors know time is money, so we provide preconstruction meetings, delivery coordination, and on-site installation support to ensure a timely, smooth installation.
