Why are rupture discs usually placed in front of safety valves?
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Why are rupture discs usually placed in front of safety valves? Their functions are pretty similar, isn’t that redundant?
It is generally installed on equipment with large gas volumes. The set pressure of the rupture disc is usually slightly higher than that of the safety valve; when the discharge capacity of the safety valve is insufficient to meet the pressure relief requirements and the equipment pressure rises above the set pressure of the safety valve, a rupture disc is used to protect the equipment.
Dual protection safety design, intended for toxic and hazardous situations.
Not all safety valves are equipped with rupture disks; what was said on the 2nd floor is correct
Safety valves and burst discs are often used together. The original poster can refer to previous discussions at http://bbs.hcbbs.com/viewthread.php?tid=207856&highlight=%B0%B2%C8%AB%B7%A7. For more information, please check the thread on safety valve technology at http://bbs.hcbbs.com/thread-376887-1-1.html. This post was last edited by tekchina on 2009-4-16 at 20:00.]
A rupture disc is installed because certain media can easily clog the outlet of the safety valve; for example, some media tend to condense while others tend to polymerize. The rupture disc separates these media from the inlet of the safety valve, ensuring that the operation of the overpressure safety valve is not affected.
Not all of them need to be connected in this series manner; generally, since the medium is toxic and harmful and can corrode the safety valve core, it is necessary to connect them in this way
The most basic purpose is to isolate and protect the safety valve; many posts on the forum have been made on this topic, so you can take a look at them
Protect the safety valve to prevent it from corroding or getting clogged; when the medium contains flammable, explosive, toxic, or valuable substances, using it in series can help prevent leaks from the safety valve