UNSPSC 23153400: Assembly machines

UNSPSC 23153400 Assembly machines is a Class code encompassing the procurement and delivery of pre-assembled or factory-integrated equipment units for water treatment and industrial flow control applications. State and local governments buy under this code primarily potable water treatment components — specifically venturi-type flow controllers paired with butterfly valves, assembled to specification and tested for accuracy before delivery. The City of Lubbock, Texas, has solicited replacement rate-of-flow controller and butterfly valve assemblies for water treatment plants through competitive ITB processes, requiring factory assembly, pressure-tap compatibility with existing actuator mounting systems, and compliance with AWWA and EPA standards for potable water service. The issuing bodies under this code are municipal water utilities and city procurement offices managing water infrastructure maintenance and upgrade work.

Recent activity centers on Texas municipalities. The City of Lubbock issued ITB 26-19653-YB in May 2026 (due May 27, 2026) for a 16-inch venturi-type flow controller and AWWA C504-compliant butterfly valve assembly with a cast iron body per ASTM A536 Grade 65-45-12 specifications and Type 316 stainless steel throat liner, factory-tested to 0.5 percent accuracy and sized to fit within 46.5 inches, with firm pricing required for 60 days on an F.O.B. delivered basis. A non-mandatory site visit was held May 20, 2026, at the North Water Treatment Plant. The City of Philadelphia posted an unrelated OVA Storage micro purchase (ITB B2626859, due April 24, 2026) that does not align with this code's water-treatment scope. The code shows limited recent state and local activity, with Lubbock's water treatment replacement equipment representing the primary identifiable solicitation under the class.