UNSPSC 31310000: Fabricated pipe assemblies

UNSPSC 31310000 Fabricated pipe assemblies is a Family code that encompasses replacement and supply of assembled pipe systems—including cleanout pipes, risers, ductile iron mains, polyethylene gas distribution pipe, chemical-resistant PVC and CPVC systems, and copper tubing—that state and local water utilities, municipalities, and special districts procure for potable water delivery, wastewater treatment, stormwater management, and utility infrastructure. Recent solicitations show water and wastewater agencies soliciting both turnkey pipe-replacement projects requiring installation labor and site restoration, and as-needed supply contracts for raw materials delivered to warehouse or job sites. The City of Thousand Oaks issued an IFB for cleanout pipe and riser replacement at its Hill Canyon Treatment Plant with a $175,000 engineer's estimate and a mandatory pre-bid conference on June 3, 2026; the City of Phoenix Public Works Department posted an IFB on September 30, 2026 for a three-year supply contract covering HDPE and PVC pipe in multiple diameters with pricing due September 30, 2026; and Tucson Water issued an IFB for chemical-resistant plastic pipe assemblies (PVC, CPVC, polypropylene, polyethylene, PTFE) for sodium hypochlorite injection systems. Issuing bodies span municipal water utilities (City of Phoenix, City of Tampa, City of Arlington Water Utilities), county-level water and wastewater districts (Broward County, Collier County, Gainesville Regional Utilities, Alameda County Water District), and special-purpose water authorities (Tucson Water). The code sees sustained activity across Florida (Orange County, Collier County, Broward County, City of Palm Bay, Tucson Arizona, City of Phoenix, and Texas municipalities). Representative recent activity includes the City of Tampa's ITB 26-P-00565 for 4" to 6" ductile iron pipe with a five percent small local business enterprise bid discount, responses due October 16, 2026; Gainesville Regional Utilities' ITB 2026-107 for polyethylene gas pipe under an alliance model, bids due September 3, 2026; and the City of Dallas's five-year ID/IQ master agreement for ductile iron pipe to support Water Utilities, bids due June 12, 2026.