Differences between the two installation methods for flow meters and control valves
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Seeking advice: How to choose between these two installation methods for flow meters and control valves? Why? First, thanks to all the sea friends!
It is mainly used for maintenance; Figure 1 is sufficient
Cut-off valves and bypasses are used when the flow meter and control valve need to be serviced. Since neither the flow meter nor the control valve tends to fail frequently, there is no need for such complexity; the combination mentioned above is sufficient. If it is truly necessary in production to keep the flow control system in use without interruption, then considering a dual-loop system would be appropriate.
It depends on what kind of medium is used there. If the medium is prone to corrosion, contains many impurities and is subject to severe erosion, and if the flow rate is important for the hydraulic control valve and it’s difficult to determine the flow rate based on the liquid level, it is recommended to choose the second option. If the flow rate isn’t that important, then the first option is suitable
The first type is sufficient; the second type is rarely seen.