UNSPSC 40174003: Cast iron pipe slipon flange

Pipe slipon flange made of cast iron

UNSPSC 40174003 Cast iron pipe slip-on flange is a Commodity code that names a specific pipe-coupling component used in water and wastewater infrastructure repair and replacement work. State and local governments buy this product as part of larger sewer and water main rehabilitation projects, where it serves as a mechanical connection point between existing and new pipe sections or for repairs to cast iron pipe systems. The code sees solicitation activity primarily from county sanitation districts and county transportation or public works departments undertaking infrastructure rehabilitation and replacement programs. Work under this code is embedded within larger capital projects — such as mainline point repairs, pipe-burst replacements, and mainline extensions — rather than solicited as a standalone supply item.

Recent activity shows concentration in California, with Santa Clara County's sanitation and transportation agencies posting multiple infrastructure rehabilitation projects. County Sanitation District No. 2-3 in Santa Clara County issued an ITB (ITBRDAFY270088) on August 26, 2026 for the Structural Defect Repair Project Phase 2, due September 17, 2026, which includes pipe bursting and mainline replacement of existing cast iron and vitrified clay pipe with new PVC and HDPE systems. Separately, Santa Clara County issued an ITB (ITBRDAFY260694) on April 29, 2026 for the Central Expressway Pavement Rehabilitation Project between Bowers Avenue and Scott Boulevard, due May 21, 2026, encompassing broader pavement and utility infrastructure work. Neither solicitation explicitly calls out cast iron pipe slip-on flanges by commodity code in publicly available abstracts, though such components are typical components in the service connection replacement and mainline repair scopes described.