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Uni-Bell PVC Pipe Association released a brief to help explain Dimension Ratio (DR), which is an important but often misunderstood concept for PVC pipe.
HOUSTON— January 3, 2019 — North American Pipe Corporation, a Westlake company, today announced that North American Pipe Corporation and Royal Pipe and Fittings will now be known under a new, single brand – “NAPCO”.  
Comparative analysis and environmental review of underground piping shows PVC pipe has fewer environmental impacts and life cycle costs.   This study evaluates underground pipe infrastructure in the context of providing sustainable water and sewer service over a 100-year period:
By Mayor John Marchand, City of Livermore, CA Spring 2017 Newsletter of the Mayors Water Council of The United States Conference of Mayors SPRING 2017
By Richard Doyle Richard Doyle is the president & CEO of the Vinyl Institute  
Municipal The American Water Works Association (AWWA) issued the 2016 version of AWWA C900, Standard for Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 In. Through 60 In. (100mm Through 1,500 mm). The standard was last revised in 2007.
by Bonner Cohen Author, Fixing America’s Crumbling Underground Infrastructure Flint, MI Publisher, http://dailycaller.com  
(Houston, TX) – North American Pipe Corporation (NAPCO), a Westlake company, is celebrating the opening of a new Material Science Laboratory in Leola, Pennsylvania.

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