NCPI is a research institute. We value our position in the civil engineering community as a source of reliable, trustworthy information.
The findings of various research projects conducted by NCPI have led to the continuous improvement of VCP, the joints used and the installation methods employed. Our education outreach is designed to share what we’ve learned and how it has been applied to industry standards.
After more than 100-years of research, and thousands of years of experience with clay pipe as a sewer conduit, we understand how minor “choices” about the information presented can be misleading. We very intentionally endeavor to avoid any manipulation of facts in favor of presenting engineers, municipalities, maintenance professionals and contractors with the facts needed to make fully-informed decisions. We believe this is critical to the long-term benefit of the sanitary sewer industry as a whole and to the slice of that industry represented by our member companies.
Why should I specify clay pipe?
VCP is a fired ceramic with the longest service life of any pipe material available. It is also environmentally-superior to competitive pipe materials and it is the only pipe that stands-up to aggressive cleaning methods. The thermoplastic competitors are all made from a petrochemical material that degrades with age and dramatically limits pipe cleaning options.
Each project is unique. The reasons for specifying VCP for one project may be wildly different than the reasons for specifying VCP for the next project. But no matter the nature of the project, the inert nature of Vitrified Clay, the compressive strength of the pipe manufactured by NCPI member companies and the leak-free joints all lead to the longest proven service life of any pipe material.
How has clay pipe changed?
In the more than 200-years since clay pipe was introduced in the sewers of major U.S. cities, ASTM standards have been adopted that require the pipe bodies to meet stringent strength metrics. Leak-free compression joints have been developed and a multitude of installation practices have been tried, tested and adjusted or discarded.
ASTM was created and the clay pipe industry formed the C04 committee that eventually created the first specification for sewer design and construction. Prior to the acceptance of this standard, thousands of miles of clay sewer pipe of radically varying quality were laid using dramatically varying methods.
In the 100-years since the first standard was accepted, additional standards for pipe strength, testing procedures and joint performance have all been proposed and accepted, so that today’s VCP joints “shall not leak.”
Why is VCP the “go to” pipe of the future?
VCP cannot be matched in terms of service life and maintenance options. VCP is a fired ceramic with material properties unaffected by time. From an environmental point of view, no other pipe material can compare with the footprint and lifecycle of VCP. So, as municipalities continue to see value in and plan for the long-term, VCP is the logical choice, both environmentally and fiscally.
Where can I buy clay pipe?
Contact one of our member companies by clicking on the logo below.
For information about purchasing pipe, please contact one of our member companies.