I’m asking sincerely: what does the icon for the safety valve inlet and outlet in the single-line diagram represent?
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RT: The single-line diagram shows only one inlet, but there are 2 safety valves; I’m not sure how to install them
The first one is a pressure relief device similar to a burst disc, and the second one is a safety valve; the two are connected in series.
Guess if it’s this thing.
I have a question regarding the use of rupture discs and safety valves in series. Once the rupture disc activates, what if some debris gets stuck on the valve disc of the safety valve? Wouldn’t that render the safety valve unusable?
That is why it is required that no fragments be generated after the rupture disc bursts.
When making a selection, one can choose those that produce no fragments after detonation
Is the burst disc 400 in length? Longer than a safety valve?
The device shown in the drawings is 400 units long; in your pictures, the rupture disc is clearly shorter than the safety valve. So what exactly is that in the drawings?