The kowov ceramic ball valve of KingWay was specifically engineered to withstand abrasion, corrosion or a combination of both. The standard ceramic material used in all Cosmix ball valves is 99.95% pure Zirconia ceramic, which is 8 times harder than stainless steel and 2½ times harder than Stellite. Since the materials utilized in the kowov ball valve are so hard, this unique characteristic enables the valve to perform extremely well under the most erosive applications - including constant cavitation, high velocities, high differential pressures and high percent solids.