Is the operating value of the emergency shut-off valve lower than the setting value of the safety valve?
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The operating value of the emergency shut-off valve is lower than the setting value of the safety valve, right? It’s not possible to wait until the safety valve activates before shutting off to prevent overpressure.
Yes, the operating value of the emergency shut-off valve should be set to be lower than the setting value of the safety valve. This is to prevent overpressure; once the pressure exceeds the setting value of the safety valve, it will open to release pressure. If the emergency shut-off valve is only closed at that point, it may lead to excessive pressure buildup and cause safety accidents. Therefore, the operating value of the emergency shut-off valve should be set lower, so that the fluid can be cut off promptly in case of abnormalities, thereby ensuring system safety. .