Corrosion in liquid cooling loops is caused by chemical, electro-chemical, or abrasive action by the heat transfer fluid on the wetted surfaces. Chemical product layers formed by corrosion can inhibit suitable heat transfer between the liquid and wetted metal surfaces. The corrosive products can introduce debris into the fluid system affecting fluid flow, clogging up filters and tight restrictions, or even damaging pump components. In extreme conditions, leaks can form if enough material is removed from the fluid containment. For applications requiring high purity of the process cooling fluid, corrosion creates contamination of fluids whose purity requirements may be in parts per billion level. In most applications, metal corrosion can be managed, slowed, or even stopped by using the appropriate materials and prevention techniques.
Corrosion Prevention in Cooling Loops