OVAL Corporation manufactures and sells various flowmeters, metrological control equipment and related systems, measuring devices, and environmental control related instruments in Japan and internationally. Its flowmeters include positive displacement, coriolis, vortex, ultrasonic, turbine, and thermal mass flowmeters for energy saving; and electronic instruments comprise totalizers, batch controllers, flow computers, SU series electronic instruments, and other electronic instruments. The company also provides peripherals and related instruments, such as strainers, air eliminators, flow-straighteners, pneumatic valve actuators, divertors, automatic valves, vent tanks, and other auxiliary instruments, as well as system solutions, and calibration and maintenance services. The company was incorporated in 1949 and is headquartered in Tokyo, Japan.