UNSPSC 23153403: Specialty assembly

UNSPSC 23153403 Specialty assembly (Commodity) encompasses precision-assembled flow control and measurement equipment for water treatment infrastructure, as evidenced by state and local governments soliciting integrated rate-of-flow controllers paired with butterfly valves designed to regulate potable water distribution from treatment plants. The code captures factory-assembled, specification-critical components that must meet strict standards for materials, accuracy, and compatibility with existing actuator systems — vendors supply complete assemblies with operational documentation and testing certificates rather than component kits. Issuing bodies under this code include municipal water utilities and their parent jurisdictions; the City of Lubbock, Texas, appears as the primary recent buyer.

The City of Lubbock, Texas, has posted activity on this code in May 2026. ITB 26-19653-YB, due May 27, 2026, sought a 16-inch venturi-type flow controller (0–144 inches water column range) with an AWWA C504-compliant butterfly valve assembly for the North Water Treatment Plant, with equipment to fit within 46.5 inches and deliver within two weeks on an F.O.B. delivered basis. Specifications required cast iron ASTM A536 Grade 65-45-12 construction, Type 316 stainless steel liners, NSF 61 epoxy coating, factory testing to 0.5 percent accuracy, and compatibility with an existing EIM electric valve actuator. The City extended local-vendor preference within five percent of the lowest non-resident bid for contracts under $500,000 and required notarized non-collusion affidavits, suspension and debarment certifications, Texas sanctions compliance, and three project references. A non-mandatory site visit was offered May 20, 2026, at the facility. No budget or award value was disclosed.