Known for design innovation, ADS meets the growing need for water transmission in arid regions with a cost-effective solution: N-12 Low Head Pipe.
ADS Low Head Pipe, made of High Density Polyethylene (HDPE), was specifically designed to meet the increasing challenges of water transmission. It provides structural strength, joint integrity, flow capacity, flexibility and economy to serve the important needs of this market. It can be utilized for low head pressure projects.
ADS Low Head HDPE pipe offers significant installed cost savings due to:
Recognized by its purple branding wrap, the ADS Low Head HDPE Pipe joint is a modification of the integral bell-and-spigot joint used in N-12 WT pipe. Longer bells and spigots increase allowable joint offsets while/ensuring watertight performance. Multiple polymer wraps on the longer bell provide additional sealing area and ease of joint assembly in tough field conditions. The spigot has been designed with two gaskets to provide redundant sealing of the joint. The result is a watertight yet flexible joint that can handle the pressures associated with low head projects.
The strength of Low Head Pipe, derived from its corrugated profile, allows it to support H-25 live loads with a minimum of 12" of cover (24" for 60" pipe). HDPE is highly resistant to chemical attack and is unaffected by soils or effluents with pH ranges of 1.5 to 14. The pipe is extruded with a pressure-rated resin (PE 3408) in the liner portion allowing continuous pressure (up to 5 psi with a 10 psi surge) without detrimental long-term effects. The smooth interior provides superior flow capabilities, essential for efficient transmission of water.