UNSPSC 39122311: Pressure relay

A relay that operates in response to the magnitude of pressure and is being operated by using increase in pressure of insulation medium in the event of electrical or mechanical accidents as well as being used in protection of devices insulated with fluid.

UNSPSC 39122311 Pressure relay (Commodity) covers replacement parts, control components, and integrated systems that manage fluid pressure and motor operations in municipal wastewater and water infrastructure. State and local governments procure pressure relays as components of larger motor control systems, soft-start units, and programmable logic controllers deployed across lift stations, pump stations, and treatment facilities. The work solicited under this code reflects a mix of single-source authorized-dealer arrangements for proprietary replacement parts and broader competitive procurements for engineered control assemblies that incorporate pressure-sensing and relay functionality alongside PLC programming, SCADA integration, and field installation services. Issuing bodies include municipal water and wastewater utilities (City of Tampa, City of Orlando, City of Santa Fe, West Basin Municipal Water District, Riverside County), county environmental and utility departments (Hillsborough County, Bay County), and school districts (Northside Independent School District). Cooperative purchasing vehicles also appear, with Sourcewell marketing law enforcement equipment to multi-jurisdictional entities.

Activity concentrates in Florida and California water infrastructure procurement, with additional opportunities in Texas, New Mexico, and across Washington state through cooperative frameworks. Representative recent solicitations include the Hillsborough County Board of County Commissioners' ITB for pump station control panels and enclosures (ITB2600393, due September 29, 2026, estimated $3.66 million over two years), the City of Santa Fe's RFP for PLC replacement and SCADA modifications (FY26RFP036, due January 9, 2026, requiring Schneider Electric integration), and West Basin Municipal Water District's RFB for TRWRP 93 Motor Control Center Replacement (RFBTH0120, due April 23, 2026, requiring California licensure and prevailing wage compliance). The City of Tampa's single-source Intent to Single Source Solcon Soft-Start Products (26X01899, due October 2, 2026) exemplifies the authorized-distributor model where vendors must provide warranty service, maintenance, and repair support alongside parts supply. Northside Independent School District's IFB for electrical equipment, parts, supplies, rentals, repairs, and services (IFB2026098, due July 1, 2026) reflects school district participation. Specification rigor and bonding requirements vary; several procurements mandate pre-bid meetings, shop drawing approvals, factory acceptance testing, and emergency response capability within defined timeframes.