Can the signals from two level gauges be used to control eight electric valves?
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I currently have two tanks that require valve switching based on the liquid level; each tank has four electric valves and one level gauge. The design is such that when the liquid level in tank A is full: the 4 valves of tank B are opened first, followed by the closing of the 4 valves in tank A. The design is such that when the liquid level in tank B reaches its maximum, the 4 valves in tank A are opened first, followed by the closing of the 4 valves in tank B. Is this possible? I don’t understand electrical instruments, so I’m coming to ask. If it’s possible, how should the interlocks be drawn in the process diagram?
Of course it’s possible; in fact, it’s even possible to control the opening degree of each valve. This is called multi-stage control