Devices for detecting the flow of liquid or devices that activate electric valves
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In industrial production, are there any devices or instruments that can detect the flow of liquids? ? For example, my PLC indicates that the liquid valve is open, but in reality it isn’t open and no liquid is flowing out; this can pose a danger, especially in the electrolysis industry. How can one determine whether liquid is flowing out or not? ? ?
Can it be connected directly to the pipeline? ? Is the level gauge system still needed?
A flow meter or flow switch can be installed downstream of the valve, and a level gauge can be installed in the tank upstream of the valve; all of these can be used to determine whether fluid is flowing out after the valve is opened. It’s also possible to install a camera on the valve itself, so that it’s possible to see right away whether the valve is open or closed: lol
It is installed directly on the pipeline, but a certain distance must be maintained to avoid affecting the flow characteristics of the valve; this distance varies depending on the type of switch chosen.