KITZ Corporation engages in the manufacturing and selling of valves, other flow control devices, and related products in Japan and internationally. It operates through Valve Manufacturing, Brass Bar Manufacturing, and other segments. The Valve Manufacturing segment manufactures and sells valves, fittings, water purifiers, and industrial filters that are used for the control of fluids. The Brass Bar Manufacturing segment offers brass bars and other fabricated items for faucet metal fittings, and components in gas supply equipment, home appliances and auto parts. The Other segment operates a resort hotel in Suwa city, Nagano Prefecture. The company products are used in buildings and houses, water supply equipment, natural gas, energy, production equipment for machinery and industrial devices, oil refining, petrochemicals, semiconductor production equipment, and water solution. It offers its products under the KITZ brand name. The company was incorporated in 1944 and is headquartered in Minato, Japan.