UNSPSC 40173604: Ductile iron pipe reducing coupling

Pipe reducing coupling made of ductile iron

UNSPSC 40173604 Ductile iron pipe reducing coupling (Commodity) covers pipe fittings and couplings used in municipal water and sewer infrastructure replacement and rehabilitation projects. State and local governments buy these components as part of broader capital improvement work to replace aging distribution mains, rehabilitate deteriorated service lines, and expand system capacity. The code sees procurement activity across county utility authorities, sanitation districts, and municipal water departments, typically bundled into larger infrastructure contracts rather than standalone component purchases. Work solicited under this code ranges from point repairs and pipe bursting operations that require coupling replacements to full mainline renewal projects involving multiple pipe sizes and fitting types. Recent opportunities show demand for reducing couplings in 4-inch to 10-inch diameter ranges, often paired with PVC, HDPE, or vitrified clay pipe replacement, service connection fittings (wyes and tees), and gate valves across pressurized and non-pressurized systems.

Recent activity concentrates in California and Florida. Pinellas County, Florida posted a two-step IFB (Solicitation 260652ITBC, due October 13, 2026 for qualification and November 5, 2026 for final bids) for coordinated Ridgewood Estates Sewer Improvements and 82nd Avenue & 113th Street Water Main Improvements involving 6,800 linear feet of 6-inch water main replacement and associated fittings with a 10% SBE participation goal. Santa Clara County, California solicited bids (ITBRDAFY270088, due September 17, 2026) for County Sanitation District No. 2-3 Structural Defect Repair Project Phase 2, which included removal and replacement of vitrified clay pipe with PVC and HDPE across multiple diameters, twenty-seven 4-inch by 6-inch wyes, and related service connection fittings in a sixty-five working day completion window. The City of Marietta, Georgia (PE77023NONST2027000000714, due September 22, 2026) and DeKalb County, Georgia (2026-034-ITB, due August 27, 2026 for a three-year multiyear contract) also solicited water service components including couplings, saddles, clamps, and quick insertion valves. Most recent opportunities are structured as IFB with unit pricing or annual supply agreements rather than fixed-price design-bid-build work.