UNSPSC 41112503: Rotameters

UNSPSC 41112503 Rotameters (Commodity) encompasses gas flow measurement and calibration equipment that state and local governments procure for environmental monitoring, laboratory operations, and utility infrastructure testing. Recent solicitations show state environmental agencies and water utilities buying precision gas flow calibrators, mass flow terminals, and zero air generators used to verify and maintain air quality monitors and meter verification systems. The issuing bodies include state environmental protection agencies (Texas Commission on Environmental Quality, Illinois Environmental Protection Agency), regional water utilities (Eastern Municipal Water District in California), and county governments (Riverside County). Work spans equipment procurement with stringent NIST traceability and EPA compliance requirements, calibration and certification services for existing meters, and preventative maintenance and repair support.

Activity concentrates in Texas and Illinois, with peripheral opportunities in California and Florida. The Texas Commission on Environmental Quality has posted multiple equipment RFBs in the past two months—notably a gas flow calibrator solicitation (RFB 582-26-15780) due July 7, 2026, requesting Mesa Metrology Series ML-800 equipment and flow cells with 60-day delivery to Austin, and a mass flow terminal RFB (RFB 582-26-15424) that closed March 31, 2026, for Fluke Electronics Molbox2-A700K primary flow standards. The Illinois Environmental Protection Agency procured four zero air generators through sole-source award to Sabio Environmental (valued at $59,100, completed March 2026) and replacement parts for Teledyne air quality monitors (estimated $43,780, March 2026). Eastern Municipal Water District issued RFP 3856 (due July 15, 2026) for meter verification, calibration, certification, preventative maintenance, and repair services within its Riverside County territory. Texas state purchasing preferences (Texas bidder status, service-disabled veteran ownership, economically depressed area sourcing) apply where indicated; Illinois and California opportunities show competitive or sole-source pathways.