The diameter of the branch pipe is larger than that of the main pipe
Thread Content
I have a question for fellow sailors: Is it common to find a pipe with a diameter of DN50, equipped with a safety valve that is DN80xDN100 in size? It seems that all the branch pipes are of a diameter equal to or less than that of the main pipe; I’ve really never seen a branch pipe with a larger diameter than the main pipe. So I’d like to ask fellow travelers
Is it related to the throat diameter of the safety valve?
It’s not common; if it’s indeed a DN50 main pipe that requires a DN80 safety valve, the only reasonable solution is to change that section of the main pipe into a DN80 tee
In any case, an adapter pipe is required; it depends on whether you use a single DN50 tee with one DN80X50 adapter, or a DN80 tee with two DN80X50 adapters.
It feels strange; there’s no need for the inlet of the safety valve to be 80, right? The same pipe diameter would suffice. Is it maybe because there is no 50*100 size available?
There must be an issue with the calculation of the safety valve’s discharge volume; otherwise, wouldn’t the main flow velocity be very high?
I think what was said on the third floor is more feasible to implement.
Is it because the fluid flow velocity in the pipeline when the safety valve operates is higher than during normal operation? Because the flow rate at the moment the safety valve opens might exceed the safe flow rate?
Obviously, this is not a standard-compliant design. I think it’s the designer who made adjustments suited to the local conditions.