Water Main Materials

Ductile Iron Pipe is commonly fabricated for use as interior process piping in water and sewage treatment facilities and has been covered by ANSI Standards since 1926. Under direction of committee A/21 of AWWA, this standard is subject to periodic review and is updated to include fabricator practices reflecting current usage in the industry. Flanged Ductile Iron Pipe is fabricated by means of threading the pipe and attaching threaded companion flanges in accordance with ANSI/AWWA C115 / A21.15. Flange Ductile Iron Pipe Submittal