Where is Corrosion Usually Experienced?
Corrosion may occur in the feed-water system as a result of low pH water and the presence of dissolved oxygen and carbon dioxide. Corrosion in the boiler proper generally occurs when the boiler water alkalinity is low or when the metal is exposed to wxygen bearing water either during operation or idle periods. High temperatures and stresses in the boiler metal tend to accelerate the corrosive mechanisms. In the boiler metal tend to accelerate the corrosive mechanisms. In the steam and condensate system corrosion is generally the result of c ontamination with carbon dioxide and oxygen. Specific contaminants such as ammonia or sulphur bearing gases may increase attack on copper alloys in the system.
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- Where is Corrosion Usually Experienced?