Boiler and cooling water treatment is about three failure modes: oxygen corrosion, scale deposition and loss of pH control.
Each has its own chemistry, and the treatment programme is a balance between them — a scavenger dose that suits the oxygen load, an inhibitor level that holds a film, and enough sequestrant to keep hardness in solution.
What we supply
Sodium Sulfite and Sodium Metabisulfite (oxygen scavenging), Sodium Nitrite (corrosion inhibition), and Sodium Hexametaphosphate, Sodium Gluconate and EDTA (scale and hardness control).
What we supply
Sodium SulfiteSodium MetabisulfiteSodium NitriteSodium HexametaphosphateSodium GluconateEDTA
Oxygen scavenging Dissolved oxygen is what pits a boiler tube. Sodium sulfite and metabisulfite consume it chemically after mechanical deaeration has taken out the bulk.
Corrosion inhibition Sodium nitrite passivates steel surfaces in closed loops, forming a protective film rather than treating the water itself.
Scale control Sodium hexametaphosphate and sodium gluconate sequester the calcium and magnesium that would otherwise deposit as scale on the hottest surfaces — where scale does the most damage.