UNSPSC 40183100: Tube fittings

UNSPSC 40183100 Tube fittings, a Class code, covers plastic pipe fittings and related accessories that state and local governments procure for water distribution, wastewater treatment, and utility infrastructure projects. Recent solicitations show municipalities and special districts buying PVC, CPVC, and polyethylene fittings—elbows, couplings, unions, tees, adaptors, bushings, nipples, and valves—in diameters ranging from 0.5 inches to 3 inches for potable water mains, chemical-resistant injection systems, and stormwater drainage. The issuing bodies span city public works departments, municipal water utilities, county sanitation districts, and special water authorities. The City of Phoenix Public Works Department appears twice as a repeat buyer, soliciting industrial pipe and miscellaneous fittings on framework agreements with three-year initial terms and two optional one-year extensions; Tucson Water solicited chemical-resistant plastic parts for sodium hypochlorite injection systems; and the City of Arlington Water Utilities requested HDPE water pipe under annual requirements contracts. Prevailing wage compliance, DBE participation, federal nondiscrimination statutes, and Build America Buy America Act provisions are standard in these procurements, particularly those involving airport, transit, or federally assisted water systems.

Recent activity concentrates in Arizona, California, Florida, and Texas. The City of Phoenix issued IFB 27-SW-0447 on September 30, 2026, for supply of HDPE pipe (1.5 to 24 inches), PVC pipe (0.75 to 4 inches), elbows, couplings, and related items for three airports on a three-year term with two optional one-year extensions, requiring 24 to 48-hour delivery and local inventory maintenance; responses were due September 30, 2026 at 10:00 a.m. The City of Arlington Water Utilities posted Solicitation 26-0226 on May 7, 2026, for HDPE water pipe in five specifications (6-inch through 16-inch, up to 25,000 feet per size) meeting PE4710 and ANSI/AWWA C906 standards, with proposals due May 21, 2026. Tucson Water's IFB 240040, posted August 18, 2023, targeted chemical-resistant components for disinfection systems, with responses due September 21, 2023. The Oregon Department of Transportation solicited ductile iron pipe fittings and valves for the Center Street Bridge Project waterline under ITB S-73000-00017088 with bids due July 13, 2026. These contracts reward responsive bidders offering firm-fixed pricing, rapid delivery capability, local stock availability, and compliance with material certifications and insurance requirements.