Okano Valve Manufacturing Co., Ltd. engages in the production, fabrication, sales and repairing of cast and forged, carbon and alloy steel valves, and fittings. Its operations are carried out through the Valves and Maintenance business segments. The Valves segment handles the production of cast and forged steel valves, and fittings for power plants and other industries. The Maintenance segment offers repair and maintenance of valves in power plants. The company was founded on November 3, 1926 and is headquartered in Kitakyushu, Japan.