National Clay Pipe Institute (NCPI)

The National Clay Pipe Institute (NCPI) is a not-for-profit technical resource for design, installation and operation of vitrified clay pipe (VCP) gravity sewer systems. VCP is the most sustainable pipe available for gravity flow wastewater systems. With unmatched structural integrity, the longest service life available, naturally environmentally friendly raw materials and regional production facilities, clay pipe is enjoying renewed interest among civil engineers. For the last 4,000 years clay has been the preferred option for sewer pipe material. One of the earliest industries to work with ASTM, clay pipe manufacturers were instrumental in establishing manufacturing and installation standards more than 100-years ago.  This rich history provides an unmatched level of expertise.