UNSPSC 24111829: Excess flow valve

An excess flow valve is a spring loaded check valve which will close only when the flow of liquid or vapor through the valve generates sufficient flow or force to overcome the power of the spring holding it open.

UNSPSC 24111829 Excess flow valve (Commodity) covers specialized pressure-relief and flow-control components for liquid and gas systems, though recent state and local solicitations show the code being applied primarily to CO2 storage, delivery, and tank-rental services rather than discrete valve components. State and local governments are buying monthly CO2 tank rentals, refill and delivery services, and large-capacity storage tank systems — including microfiltration feed tanks, cryogenic nitrogen microbulk systems, and water storage vessels — that incorporate valves and associated fittings as part of integrated equipment packages. Issuing bodies include county departments of operations and regulatory management, municipal water and wastewater authorities, and university purchasing divisions; Collier County, Florida has posted two nearly identical CO2 rental solicitations within the past month, signaling repeated demand for this service category.

Recent opportunities span Florida, Georgia, Utah, and Wisconsin. Collier County, Florida issued Quick Quote QQ2026144 (due July 28, 2026) for FY27 rental, refill, and delivery of CO2 to six county aquatic facilities, with monthly pricing for nine 750-cubic-foot tanks and five 125-cubic-foot portable tanks plus per-pound delivery and refill rates for approximately 120,000 pounds of CO2 annually through September 30, 2027. Pinellas County, Florida posted ITB 260374ITB (due April 30, 2026) for replacement of a 12,150-gallon Microfiltration Feed Tank at its Industrial Water Treatment Facility, with an internal estimate of approximately $103,722.00. The City of Orem, Utah issued RFP2026SECONDARY (due April 30, 2026) for secondary digester cleaning and 24-inch valve retrofit at its wastewater treatment facility. Additional opportunities include University of Wisconsin-Eau Claire's request for bids on a Microbulk Cryogenic Nitrogen Storage Tank and Delivery System (due April 24, 2026), Gwinnett County, Georgia's informal written quotation for 5,000-gallon and 1,635-gallon heavy-weight storage tanks (due March 16, 2026), and the City of Marietta, Georgia's sealed-bid solicitation for the Pine Mountain Tank Replacement project, a five-million-gallon prestressed concrete tank installation with associated valves and SCADA equipment (due February 24, 2026).