UNSPSC 31311300: Bolted pipe assemblies

UNSPSC 31311300 Bolted pipe assemblies, a Class code, encompasses industrial piping materials and fittings that state and local governments procure for infrastructure maintenance, utility operations, and construction projects. Recent solicitations show purchasing of high-density polyethylene (HDPE) and polyvinyl chloride (PVC) pipe in multiple diameter ranges, elbows, couplings, tees, and associated fittings supplied on an as-needed basis with rapid delivery requirements, typically 24 to 48 hours from purchase order. Specialized applications include primary 15 KV outdoor electrical distribution cable, natural gas pipeline materials, and stormwater and drainage pipe systems. Issuing bodies span city public works and aviation departments, municipal utilities, county governments, and university systems across the country. The City of Phoenix Public Works Department emerges as a repeat buyer, with two recent solicitations (IFB 26-SW-0379 posted August 12, 2026 and IFB 27-SW-0447 posted September 30, 2026) for industrial pipe and fittings on three-year terms with two optional one-year extensions, both subject to Disadvantaged Business Enterprise-Neutral compliance and small business participation tracking.

Geographic activity spans Arizona, Texas, Georgia, and Florida. The City of Phoenix's dual solicitations for HDPE and PVC pipe supplying Phoenix Sky Harbor International Airport and other municipal facilities represent the most recent and substantial pipeline activity. The City of Augusta, Georgia posted ITB 27-116 on September 10, 2026 (due September 29, 2026) for HDPE pipe, couplings, and end sections for drain installation under one-year terms with four optional renewals, subject to Minority and Women Owned Business Enterprise requirements and local-bidder preference for projects under $100,000. Lubbock Power & Light (Texas) requested quotes for 3,000 feet of primary 15 KV outdoor pipe cable under RFQ 26-7014-ELD (due September 25, 2026). The City of Lawrenceville, Georgia issued a bid for natural gas pipe materials and just-in-time delivery coordination along the Cedars Road to Sugarloaf Parkway corridor (due July 23, 2026). The City of Palm Bay, Florida solicited replacement of outfall piping along the I-95 corridor (ITB due July 14, 2026) and conducted a pre-solicitation RFI in May 2026 for stormwater pipe rehabilitation and replacement solutions along Malabar Road. Texas A&M University System issued ITB TAMUS-ITB-26-0539 for range pipe fabrication services (due July 23, 2026).