UNSPSC 40174004: Ductile iron pipe slipon flange

Pipe slipon flange made of ductile iron

UNSPSC 40174004 Ductile iron pipe slip-on flange, a Commodity code, covers pipe fittings and flanges used in sanitary sewer rehabilitation and water infrastructure projects. State and local governments use this code to procure flanged connections for mainline repairs, pipe-burst replacements, and extensions in wastewater systems. The recent solicitation activity shows primary demand from county sanitation districts and county departments of public works undertaking mainline rehabilitation programs that involve removal and replacement of aging vitrified clay pipe and cast iron with modern PVC and HDPE alternatives, including the fittings and flanged connections required at repair points and extension junctions.

County sanitation and water agencies in California dominate recent activity under this code. Santa Clara County Sanitation District No. 2-3 posted an ITB (ITBRDAFY270088) on August 26, 2026, with a response deadline of September 17, 2026, for the Structural Defect Repair Project Phase 2, which involves thirty-five sanitary sewer mainline point repairs, five mainline pipe-burst replacements at seventeen locations, and two sewer mainline extensions in the unincorporated eastern foothills, with work to be completed in sixty-five working days from Notice to Proceed. A second recent Santa Clara County ITB (ITBRDAFY260694), posted April 29, 2026, with responses due May 21, 2026, for the Central Expressway Pavement Rehabilitation Project between Bowers Avenue and Scott Boulevard, includes pavement rehabilitation and related infrastructure improvements but does not represent demand specifically under the ductile iron pipe slip-on flange code. The code shows limited recent transparent activity; the Sanitation District No. 2-3 project is the only posted solicitation directly aligned with the commodity's actual scope.