Should the vent valve of an atmospheric pressure storage tank use FO or FC?
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Should the vent valve on the top of an atmospheric pressure storage tank be of type FO or FC? It involves setting a pressure and then opening the valve to release the exhaust gases from the tank to the waste gas treatment system
FO, according to your description, it is supposed to ensure that the gas phase in the atmospheric-pressure tank does not experience overpressure; in the event of a fault, the valve opens
The exhaust valve is FO; if there is also an intake valve, then that one is FC
It is better to have it determined by professionals in fields such as process engineering
The exhaust valve is usually chosen as FO, but there must be a certain pressure range for normal pressure in your case
Based on your description of the process requirements, it should be FO in case of a fault
Activated in case of FO failure. Ensure safety
FO fails open to ensure the storage tank does not overpressurize!