Internal leakage detector is applied to the valve and the hydraulic system leak troubleshooting system online operation, to accurately find blocked or leakage within the valve. Using ultrasonic detector check valve hydraulic circuit failure to find out the internal leakage quickly and easily. Ultrasonic detector valve 'contact model' along the loop samples readings. Inspectors can clearly define the direction of flow, more important is the source of trouble, even in the high noise areas. Fortress through hydraulic cylinder seal the internal leakage of tiny air bubbles in the oil, as they arrive from the pressure side pressure side, they, in turn, 'blowout'. These small blast ultrasonic energy, easily detected by ultrasonic detector valve. And by adjusting the frequency to eliminate the interference of the ultrasonic detector. The valve detector typical examples of typical application - — 'Within the valve leakage, hydraulic system leak detection method' 1, the instrument stick on valve upstream line ( As shown in figure A) Ultrasonic value determination system environment. 2, using the ultrasonic detector on a host of up and down arrow buttons to adjust the sensitivity, to ensure that the arrow on the LCD screen pointer, to determine the system background signal, at the same time, pay attention to the screen the dB readings. 3, the instrument stick on the downstream piping Industrial Valves ( As shown in figure B) Listen to leak signal. If the screen of the dB reading reading less than or equal to A point, that the valve without leakage phenomenon; If the point B of the dB reading relative to point A increases, the valve leakage. 4, in the end, the detector abutting somewhere downstream piping under the point B to leak. If the valve leakage, the diagram C point should be less than point B reading dB; If the C point of dB reading more than point B readings, leak location should be somewhere in the downstream of the pipeline. 5, if the valve closed, almost couldn't hear the sound. If the Industrial Valves is in open state, can hear the flow of the continuous or discontinuous, it is the sound of the medium flows through the body. 6, water treatment plants can be reference to digital readout of the ultrasonic detector of valve repair after calibration and set up work. The reading of the water treatment equipment of sluice Industrial Valves generally less than 5 db mu V.
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