This is a high-performance zirconia ceramic ball valve core, engineered for reliable fluid control in demanding industrial environments. Made from fully stabilized zirconia ceramic, it features a spherical structure with a top opening for valve stem connection and a side oblong flow port. Boasting ultra-high hardness (second only to diamond), excellent wear resistance, and a mirror-polished surface, it delivers zero leakage, low friction, and long service life. It also offers outstanding corrosion resistance to most acids, alkalis, and organic solvents, and can withstand high-temperature operating conditions. This valve core is widely used in chemical processing for corrosive fluids, petrochemical and mining industries for abrasive slurries, wastewater treatment for particle-containing media, as well as pharmaceutical and food fields for contamination-free clean fluid systems.