UNSPSC 40173902: Cast iron pipe rupture disk

Pipe rupture disk made of cast iron

UNSPSC 40173902 Cast iron pipe rupture disk is a Commodity code that does not describe the work actually being solicited under this classification in recent state and local procurement. The recent opportunities tagged with this code—including the City of Phoenix Public Works industrial pipe supply contract (IFB 27-SW-0447, sealed bids due September 30, 2026), the City of Augusta water infrastructure HDPE and PVC pipe supply (ITB 27-116, bids due September 29, 2026), and the Douglasville-Douglas County Water and Sewer Authority annual water and sewer pipe fittings procurement (IFB 327, bids due October 7, 2026)—center on bulk supply of polyvinyl chloride and high-density polyethylene pipe in standard diameters, couplings, fittings, and miscellaneous appurtenances for routine water and sewer maintenance. A single opportunity for structural defect repair in Santa Clara County involves removal and replacement of vitrified clay and cast iron mainline pipe with PVC and HDPE replacements. None of the recent solicitations explicitly reference rupture disks, isolation devices, or specialty cast iron components; the code classification appears misaligned with the purchasing activity actually captured.

Issuing bodies pursuing these opportunities are municipal water and wastewater departments and special-purpose authorities in Arizona, Georgia, and California, including the City of Phoenix Aviation Department (which manages three airports), the City of Augusta, the Douglasville-Douglas County Water and Sewer Authority, and Sanitation District No. 2-3 in Santa Clara County. The geographic concentration is in the South (Georgia) and Southwest (Arizona), with one major activity in Northern California. Representative recent solicitations are the City of Phoenix's three-year industrial pipe supply agreement (IFB 26-SW-0379, offerings due August 12, 2026) covering HDPE and PVC pipe from 1.5 inches to 24 inches diameter with 24- to 48-hour delivery requirements and local inventory maintenance, and the City of Augusta's annual ITB for HDPE pipe, couplings, and end sections (8 inches to 36 inches diameter) under a one-year term with four optional one-year renewals and a local-bidder preference within ten percent or $10,000 for projects $100,000 or less. The code shows material activity but not for cast iron rupture disks.