Okumura Engineering Corp. develops, manufactures, and sells valves for industrial, building, and marine applications. Its butterfly valves are used in construction, power generation, shipbuilding, and plant industries. The company also supplies fluid control equipment, pinch and knife gate valves, land-use products for building equipment, chemical, electric power, gas, steel, paper and pulp, and water treatment industries, as well as marine products for shipyards. Founded in 1902, it is headquartered in Yasu, Japan.