What is the function of the bypass valve adjacent to the emergency pressure relief valve in the medium-pressure hydrogenation process?
Thread Content
What is the function of the emergency pressure relief valve bypass in the medium-pressure hydrogenation process (with a flow control orifice plate on the bypass)? What does PE mean on the valve as well? Thank you! !
To prevent damage to the system resulting from a sudden increase in pressure, the flow control orifice plate serves to avoid excessive stress being applied to the pipes or valves
This bypass is normally closed; how can it fulfill the function you mentioned? ? ? ? ? ?
Reply to 3# yrj0402: Generally, the bypass of a pressure relief valve is used to relieve pressure in the system when it is shut down. This orifice plate can serve to limit the flow rate, ensuring that pressure is released slowly and not all at once, thus preventing overpressure in the system later on.
My pressure relief valve can already release pressure when the machine is stopped; why is it necessary to add an additional bypass? Hehe, please explain in detail!
The bypass pressure relief valve is a backup, used when the main pressure relief valve fails. As for the function of the bypass valve flow-limiting orifice plate, it is as mentioned on the 4th floor