I'm trying to calculate the pressure drop in a PSV discharge line. The set pressure is low so the pressure drop allowable is low to meet back pressure limitations. For the pipe exit to atmosphere, crane quotes a k-value of 1.0. For a 10" pipe this adds a lot to the equivalent length (~14m)...
I'm looking for European equivalents of the API practices for relief valve sizing and installation in refineries. Does anyone know of a suitable resource?
Thanks.
Are there any rules preventing you from installing check valves into a line that forms the relief path of a vessel protected against fire?
Also, are there any peculiarities with Stoomwezen rules in this case?
Thanks