Smoothwall Spiral Rib Pipe Solve your stormwater problems with the improved hydraulics of a Hi-Flo® Smoothwall Spiral Rib Pipe System from AIL. SAVE TIME. SAVE MONEY. Specify a Hi-Flo® Smoothwall Spiral Rib Pipe System for your next project. Hi-Flo® is an innovative flexible metal pipe that combines the proven strength of corrugated metal pipe with the flow capacity of a smooth inner wall. Hi-Flo® delivers the recommended Manning’s ‘n’ of 0.013 or better and stands up to the most aggressive environments. Look into the many benefits of using a Hi-Flo® Smoothwall Spiral Rib Pipe System from AIL: Smooth interior surface for superior hydraulics Economical, strong, lightweight and easy to install Reduced trench excavation and bed preparation Variety of sizes, thicknesses and materials Full range of fittings and accessories Long design service life expectancies Can be used to reline existing systems Full engineering support and field service Approved to CSA Standard G401-07, OPSD Standards 805-030/805-040, and ASTM Standards A760/A796

AIL has been an industry leader in delivering high-quality, corrugated metal solutions since 1965. Section design properties To suit virtually any application, Hi-Flo® Pipe and Pipe Arch come in many different diameters and lengths of 6 m or longer. Thicknesses range from 1.6 mm to 2.8 mm. It is available in galvanized or aluminized type 2 steel and is about 1/12th the weight of concrete pipe. Round Pipe depth-of-cover limits (CL-625 live load) Section Modulus Properties are effective section properties at full yield stress. Dimensions are subject to manufacturing tolerances. Diameter, mm Minimum...