UNSPSC 40173702: Cast iron pipe reducing flange

Pipe reducing flange made of cast iron

UNSPSC 40173702 Cast iron pipe reducing flange is a Commodity code that captures specialized connection fittings and flanges used in sanitary sewer infrastructure rehabilitation and replacement work. State and local governments buy these components as part of broader sewer mainline repairs, pipe bursting projects, and sanitary sewer extensions where existing vitrified clay pipe, cast iron, and other legacy materials are removed and replaced with modern PVC, HDPE, and concrete infrastructure. The work encompasses both point repairs at discrete locations and larger-scale mainline extensions that require connection fittings in multiple diameters and configurations. County sanitation districts and regional water authorities are the primary issuing bodies under this code, driven by aging sewer system rehabilitation programs and infrastructure modernization initiatives.

Santa Clara County has shown the most recent activity, with two substantive opportunities posted in 2026: Sanitation District No. 2-3's Structural Defect Repair Project Phase 2 (ITB ITBRDAFY270088, response due September 17, 2026) and Santa Clara County's Central Expressway Pavement Rehabilitation Project (ITB ITBRDAFY260694, response due May 21, 2026). The Sanitation District No. 2-3 project is the most directly relevant, explicitly requiring removal and replacement of service connection fittings including 4×6, 4×8, and 4×10 wyes as part of thirty-five mainline point repairs and two mainline extensions in the unincorporated eastern foothills. Proposals must be submitted in physical form to the County Government Center in San Jose with a sixty-five working day completion window from Notice to Proceed. Geographic concentration in California, particularly Santa Clara County, characterizes recent procurement activity under this code.