UNSPSC 40173404: Ductile iron pipe plate flange

Pipe plate flange made of ductile iron

UNSPSC 40173404 Ductile iron pipe plate flange is a Commodity code that covers specialized pipe fittings and components for water and wastewater infrastructure systems. State and local governments procure ductile iron flanges, wyes, and related pipe connection assemblies primarily through sanitation districts, county water authorities, and public works departments managing sewer rehabilitation, water main replacement, and system extension projects. The flanges and fittings appear in bid packages as components of larger infrastructure rehabilitation programs rather than as standalone material orders, typically bundled with pipe segments, manholes, and appurtenances for removal-and-replacement or new-construction work on sanitary sewer and water systems.

Santa Clara County issues the bulk of recent activity under this code, with two ITB solicitations posted in 2026: County Sanitation District No. 2-3's Structural Defect Repair Project Phase 2 (ITB ITBRDAFY270088, due September 17, 2026) encompasses thirty-five sanitary sewer mainline point repairs, five pipe-burst replacements, and two mainline extensions in the unincorporated eastern foothills, with the bid package calling for removal and replacement of service connection fittings including twenty-seven 4"×6" wyes, two 4"×8" wyes, and two 4"×10" wyes as part of the scope; and Santa Clara County's Central Expressway Pavement Rehabilitation Project (ITB ITBRDAFY260694, due May 21, 2026) focused on roadway and pavement work but tagged with this code despite minimal pipe-component content. Geographic activity concentrates in California, specifically Santa Clara County, though the code's low recent-opportunity volume suggests limited current demand in state and local procurement markets.