... Abstract The functional maintenance and confirmed acceleration of motor- and air-operated valves in nuclear power plants during an earthquake are regulated in the Japanese seismic design code (JEAC4601 (see Ref. [1])). In the present work, we used a resonant shaking table at the Central...

... Abstract Valves are one of the most used products in the power industry. The subject of valves is broad. They come in various configurations to meet end-user requirements. Because of their uniqueness, valves are designed to meet specific industry standards such as the American Petroleum...

... Abstract Valves play important roles in piping systems. In the oil and gas industry, for example, they are used to control flow rates in pipes, isolate flow, and provide over pressure protection of equipment. Given the role of valves in process industries, it is important that valve end-users...

... 12 07 2010 Recently, acoustic testing method has been widely used for valve leakage inspection. Traditional method has difficulty carrying out research on the acoustic testing of valve leakage due to the complex geometry of the valve and the effect of flow on sound field. Thus...