If you have ever walked through a food plant, a pharma unit, or even a chemical processing floor, you may have noticed tall, quiet equipment doing some very important work in the background. Evaporators. They do not look dramatic. They do not move fast. But they quietly help industries save energy, improve product quality, and handle liquids in a smart way. One type that often comes up in serious process discussions is the falling film evaporator. People talk about it for goo