Application‑based segmentation reveals the dominant end‑use drivers for Flange V-port Ball Valves. Oil & Gas operations, encompassing upstream drilling, midstream transport, and downstream processing, represent the largest share at roughly 30 % of market revenue, reflecting the sector’s stringent safety standards and high‑pressure service demands. Power Generation—including thermal, nuclear, and renewable‑linked steam cycles—contributes about 25 %, driven by the need for precise throttling and rapid shut‑off capabilities in turbine and boiler systems. Water & Wastewater treatment facilities account for 20 % as the valves manage flow regulation in filtration, dosing, and distribution networks. Chemical & Petrochemical plants, handling aggressive media and variable temperatures, hold a 15 % share, emphasizing material compatibility and corrosion resistance. Finally, the Food & Beverage sector, with strict hygiene and sanitary requirements, comprises the remaining 10 % of sales. These application segments collectively define the market’s revenue distribution and are essential for strategic positioning within the Flange V-port Ball Valve market taxonomy.