Proper boiler water chemistry prevents scale, corrosion, and carryover — safeguarding your steam system and reducing fuel costs.
Boilers represent a major capital investment and a critical energy source in most industrial facilities. Poor water quality is the leading cause of premature boiler failure, unplanned shutdowns, and elevated fuel consumption.
Scale formation is the most common boiler water problem. Even a 1 mm layer of scale increases fuel consumption by 8–10% and accelerates tube failure through overheating. Scale is caused by hardness ions precipitating on heated surfaces. Proper softening or deionization of make-up water, combined with internal phosphate treatment programs, keeps these deposits under control.
Corrosion attacks both the water-side and steam-side of boiler systems. Dissolved oxygen is the primary culprit — mechanical deaeration removes most of it, while oxygen scavengers (sodium sulfite or catalyzed bisulfite) eliminate residual traces. Low pH accelerates corrosion further; alkalinity adjusters maintain protective levels.
Carryover — steam contaminated with boiler water droplets — damages turbines, heat exchangers, and process equipment. Controlling total dissolved solids through regular blowdown and maintaining correct alkalinity ratios prevents carryover.
A well-designed boiler water treatment program balances chemical treatment, monitoring, and blowdown management. Aqua Global designs and supplies complete boiler treatment programs, from make-up water pre-treatment to condensate return line protection.