There are some fundamental differential between API 521 2014 edition with the previous. One of them is the regulation on Internal Accessories of Flare K.O. Drum Outlet nozzle. Previously it's suggested to install internal accessories for KO Drum outlet nozzle such Deflector to minimize the liquid carry over. But in API 521 2014 it's prohibited to install these such accessories. So, it's so critical for us (Process Engineer) to have this version of sacred API 521.
for Thread Starter, Please show up this in the Quote at page one. Thanks