Hi,
An old plant I'm dealing with replacing some piping for uses a PN325 standard for its flanges. This is not covered in DIN EN 1092-1, and from what I can tell from my research (read: googling), the PN325 is a company standard made by the now defunct German IG group, and but is still somewhat...
Thank you for the reply. I think that if the time is so short my preference is to install a switch for low flow or pressure in that will automatically start the flow of natural gas. As you said better to not take credit for operator intervention.
Hello all
I have a question dealing with what will occur if the purge gas to flare system (nitrogen) has a supply failure. The flare is equipped with velocity seal. I see from John Sink and API521 that this describes oxygen levels below the seal as they will rise almost immediately after purge...
