Structure or valve to prevent overfilling
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A buffer tank can be added on the second floor of the old factory building, but the civil engineering structure cannot withstand the water-testing load of the tank. Since the tank is sealed during operation, are there any safety devices to ensure that it remains under load even in the event of a power outage?
Try the remote-controlled float valve (purely mechanical, no electricity required)
A float valve will do; it opens automatically when the liquid level rises.