UNSPSC 40174700: Pipe threaded flanges

UNSPSC 40174700 Pipe threaded flanges is a Class code covering pipe fittings and connection components used in municipal water distribution, wastewater infrastructure, and sewer system rehabilitation. State and local governments procure this code primarily for utility system maintenance, infrastructure repair, and construction projects. Recent solicitations show active demand for cast iron, ductile iron, steel, and specialty polymer fittings — particularly wyes, elbows, and service connection fittings for sewer mainline work. Issuing bodies include county sanitation districts, county public works departments, and municipal departments of public works. The code sees steady activity across utility infrastructure procurement, with water and wastewater agencies as primary buyers.

Santa Clara County and the City of Brockton, Massachusetts dominate recent activity. Santa Clara County Sanitation District No. 2-3 posted ITB ITBRDAFY270088 in August 2026 for its Structural Defect Repair Project Phase 2, due September 17, 2026, specifying removal and replacement of twenty-seven 4"×6" wyes, two 4"×8" wyes, and two 4"×10" wyes as part of a comprehensive sewer mainline rehabilitation scope that also includes PVC and HDPE pipe. The City of Brockton, Massachusetts Department of Public Works posted bid BD261143PRO15PRO15129467 in May 2026 for ductile, cast iron, and steel fittings for municipal water distribution and wastewater infrastructure, due June 4, 2026. A third recent opportunity — Santa Clara County's Central Expressway Pavement Rehabilitation Project (ITB ITBRDAFY260694, due May 21, 2026) — shows code tagging that does not clearly align with pipe fittings scope and may represent miscoding in the source system. California and Massachusetts represent the geographic concentration in recent filings.