UNSPSC 26111528: Hydrostatic drives

UNSPSC 26111528 Hydrostatic drives is a Commodity code. State and local governments buy variable frequency drives (VFDs) — electromechanical devices that control motor speed and torque in industrial and facility applications — under this code, though recent solicitations reveal the code is tagged inconsistently and captures a mixed workload. The concrete work being procured includes new VFD equipment supply (500 horsepower units for water treatment booster stations, multi-unit replacements for aviation facilities), repair and maintenance services (emergency response and preventative maintenance on switchboards, transformers, and drive arrays at municipal headquarters and water treatment plants), and ongoing parts and service support for existing installations. Issuing bodies include water utilities (Eastern Municipal Water District, Gwinnett County Department of Water Resources, City of Phoenix Water Services, Washington State Department of Ecology), aviation authorities (Greater Orlando Aviation Authority), municipal facilities departments (City of Tampa Convention Center), and county public-works operations. Water districts and state environmental agencies appear most active in the recent record.

Activity spans California, Florida, Georgia, Arizona, and Washington. The Eastern Municipal Water District in Riverside County, California, issued RFB 3921 for three 500 HP VFDs in NEMA 1 enclosures (due April 30, 2026, ITB notice); the Greater Orlando Aviation Authority solicited VFD repair and replacement services for approximately 368 drives across multiple facilities in Orange County and Orlando (RFP 26-414, due March 31, 2026); the Washington State Department of Ecology posted IFB 2618 ADM for electrical maintenance services including VFD preventative maintenance at its Lacey headquarters (due July 20, 2026); the City of Phoenix Water Services Department issued IFB 26-0087 for a five-year VFD supply contract covering wastewater and water treatment plants (due September 15, 2025); and Riverside County issued RFB 3918 for an ABB ACS880-04 drive module replacement (due March 25, 2026). Single-source procurements for ABB products through Stan Weaver & Company also appear in the City of Tampa record (contracts 25-X-00916 and 26-X-00942), reflecting vendor lock-in on existing systems. The code shows no federal set-aside or small business restrictions in the recent record, though the Washington and Phoenix solicitations reference small-business and DBE participation preferences respectively.