UNSPSC 41112424: Displacer chamber level instrument

Displacement instruments determine liquid level by sensing the buoyant force exerted on a displacer by the liquid it displaces. Unlike floats, in floattype level instruments, the displacer moves very little relative to the rising or falling liquid.

UNSPSC 41112424 Displacer chamber level instrument is a Commodity code that encompasses pressure gauges, level sensors, temperature transmitters, and related process instrumentation used in water, wastewater, and waste-to-energy operations. State and local governments buy these devices for monitoring, control, and compliance at treatment facilities, distribution systems, lift stations, and critical infrastructure sites. Recent solicitations show mixed demand: the City of Tampa has issued single-source notices for Allen Bradley and Rockwell Automation repair parts and support alongside RFQs for inventory gauges (pressure and dial-type units); Collier County, Florida is pursuing a three-year single-source award for Siemens process instrumentation including ultrasonic level controllers, flow meters, pressure and temperature transmitters, and SCADA integration; the City of Phoenix Water Services is seeking five-year contracts for pressure and temperature transmitters and atmospheric monitoring instruments (hydrogen sulfide, methane, chlorine, carbon monoxide sensors) under IFB with DBE-N participation requirements. Issuing bodies are predominantly water and wastewater utilities and municipal water services departments in mid-sized cities and counties, with repeat buyers in Florida and Arizona demonstrating sustained procurement activity in this category.

Geographic concentration is strongest in Florida (Tampa, Collier County) and Arizona (Phoenix), with additional activity in New Mexico (City of Gallup SCADA upgrade involving sensor and instrumentation upgrades). The City of Phoenix issued IFB 26-0398 for pressure and temperature instrumentation due August 18, 2026 under a five-year contract commencing October 2026, specifying equipment from Ashcroft, Siemens, Endress+Hauser, and other manufacturers and requiring a local stocking distributor with same-day or next-business-day fulfillment capability. The City of Tampa issued RFQ 26-P-00548 for inventory gauges (Ashcroft, WIKA brands, chlorine gauges, and guards) on September 16, 2026 with quotes due October 6, 2026, with one-year award terms and five-business-day delivery windows. Collier County's Notice of Intent to Single Source (PUR17875) for Gilson Engineering Sales as authorized Siemens representative closed October 1, 2026 with a three-year term beginning October 1, 2026. The code shows active and ongoing procurement across municipal water utilities for replacement parts, new equipment, and SCADA-integrated sensor systems in five-year and multi-year contract vehicles.