Hello Gentlemen

My question is : How to figure out the presure drop in a evaporative condenser and a set of condensers installed in parallel?

As you know a presure drop of just 1Psi (0,068 bar) higher between condensers is very import to to disign the seal leg at the piping outlet . Also this liquid seal is very import to purge Non Condensables Gases.

I will appresite your opinions
Best regards