UNSPSC 40174400: Pipe spectacle blind flanges

UNSPSC 40174400 Pipe spectacle blind flanges is a Class code that encompasses specialized pipe closure and isolation components used in water and wastewater infrastructure repair and maintenance. State and local governments procure these components as part of sewer and water mainline rehabilitation, replacement, and extension projects where sections of pipe require temporary or permanent isolation, pressure testing, or access points during construction or renovation work. The issuing bodies soliciting under this code are primarily county sanitation and water districts, which conduct large-scale infrastructure rehabilitation programs in unincorporated service areas, and county transportation and public works departments handling multi-phase repair and replacement initiatives.

Santa Clara County represents the primary recent activity, with at least two major infrastructure solicitations posted in 2026. County Sanitation District No. 2-3 issued ITB ITBRDAFY270088 on August 26, 2026 (due September 17, 2026) for the Structural Defect Repair Project Phase 2, a sewer mainline rehabilitation effort in the unincorporated eastern foothills requiring removal and replacement of vitrified clay pipe with PVC and HDPE pipe, service connection fittings, and precast concrete sanitary sewer components across multiple diameters and locations. Santa Clara County also issued ITB ITBRDAFY260694 on April 29, 2026 (due May 21, 2026) for the Central Expressway Pavement Rehabilitation Project, a comprehensive roadway and infrastructure project that encompasses pavement work, traffic signal modifications, and related improvements. The source provides no additional geographic spread or activity in other jurisdictions or states.