sorry I forgot one thing - you should be very careful using acid to flush the heat exchanger as the acid will attack the plates (which are usually 304SS on this application). Also when washing the plates down do not use a wire brush as the scratched left increase the surface area for the scale...
Hi, I work in the heat exchanger business and have cleaned out many heat exchangers on cooling towers - the Alfa Laval M15B is very common on this application but as you have experienced if you don't have a decent filter the plates will foul up very quickly. With a decent filter fitted however...
