Rupture Disk
Rupture Disk
(OP)
Is a rupture disk considered a pressure reatining item, given that its purpose is to burst at a certain pressure?
Thank you,
Alex
Thank you,
Alex
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RE: Rupture Disk
RE: Rupture Disk
I'll try to contact the AI at the time and checkout his memory.
Here is short video of the transporting an identical reactor in Germany. From some close up pictures there was no correction to some areas that gave us a lot of headaches.
The video is at the bottom of the page. I noticed one thing when you glimpsed the heads there are no large rupture disk nozzles.
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RE: Rupture Disk
RE: Rupture Disk
I agree with you that it is a Pressure Relieving Device, it is required to be qualified and that it holds up to a specified pressure and therefore is a pressure retaining item. However, if the disk has ruptured it will not retain pressure. It is in this context that I said the disk was not pressure boundary (or pressure retaining). It is not external pressure boundary. I may have missed the context of Alex2010's post.
Is the disk itself considered a PRD or is it the disk in conjunction with the holder? It is the disk holder forms part of the pressure retaining piping.
Is pressure retaining material required to be Code Material? Rupture disks do not need to be Code Material.
The disk itself does not require individual registration (in my world these are registered) but the disk holder requires the registration.
Some sections of the CODE require that the disk is stamped with the UV symbol and other sections do not.
Some sections of the Code require the use another PRD in line with the disk whereas other sections do not.
The reasons for the differences between the various sections of the CODE noted above are unknown to me. I have posted in thread292-284594: Sec III vs VIII rupture disk stamping. Any insight there would also be appreciated.