UNSPSC 23201009: Pressure vessel

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.

UNSPSC 23201009 Pressure vessel is a Commodity code that in practice encompasses pressure gauges, transmitters, switches, and related instrumentation equipment that state and local governments deploy across water, wastewater, and utility operations. Recent solicitations reveal that buying activity focuses on pressure and temperature measurement instruments rather than vessel containers — Ashcroft, WIKA, Honeywell, and Siemens branded gauges and transmitters serve pump stations, treatment facilities, and SCADA systems. Issuing bodies include county water and wastewater departments, city utilities, and county commissioners' offices across multiple states. These agencies typically solicit through RFQ, IFB, or ITB notices as one-time purchases or multi-year supply agreements, with responses ranging from competitive sealed bids to single-source challenges for integrated equipment tied to existing SCADA infrastructure.

Recent activity concentrates in Florida, with Hillsborough County, Collier County, and the City of Tampa all posting pressure gauge and instrumentation solicitations between July and October 2026. The City of Phoenix Water Services Department posted IFB 26-0398 on August 18, 2026, for a five-year pressure and temperature instrumentation supply contract covering transmitters, gauges, switches, thermowells, and accessories from multiple approved manufacturers, with a pre-offer conference held August 4, 2026; Hillsborough County Board of County Commissioners posted ITB 26-00392 on September 2, 2026, for 200 Ashcroft pressure gauges ($65,148.80 estimated value) with bids due September 21, 2026; the City of Tampa posted RFQ 26-P-00548 on September 16, 2026, covering twenty-four line items of pressure gauges and related equipment with quotes due October 6, 2026; and Gwinnett County Department of Water Resources posted Informal Written Quotation IWQ 136938 on October 5, 2026, for vibration and temperature monitoring transmitters and accessories with quotes due October 12, 2026. Collier County's Notice of Intent to Single Source to Gilson Engineering Sales, LLC for Siemens process instrumentation (posted September 10, 2026, challenge period closing October 1, 2026) reflects the role of sole-source procurements when equipment integrates with county SCADA systems and permit compliance requirements.