Advantages and disadvantages of self-acting pressure control valves versus single-loop pressure control
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Hello, Haiyou team: Self-acting pressure control valves are often used in the constant-light pipeline and nitrogen sealing pipeline. I would like to ask why a single-loop pressure control system is not used – what are the advantages and disadvantages of these two approaches? I seek advice from fellow sailors!
The control precision of self-acting control valves is not as high as that of single-loop control systems, but they are cheaper, and their installation and maintenance requirements are also much lower. The choice depends mainly on the application requirements, with the aim of selecting a cost-effective method for control...
Boring! Why not build a control room for your gas stove and install a DCS control system to regulate the cooking temperature?
I disagree with the opinion on the second floor. As long as the pressure gauge is accurate, the regulation accuracy of a self-acting control valve is higher than that of a single-loop system, and its stability is better. It operates on purely mechanical principles, without any electronic components or wiring-related issues, and thus avoids PID-related problems; it’s very reliable