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What Measures are taken to Prevent Boiler System Corrosion?

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What Measures are taken to Prevent Boiler System Corrosion?

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Corrosion, in general, causes difficulty from two stand-points. The first is deterioration of the metal itself, and the second is deposition of the corrosion products to form deposits. Generally, uniform corrosion of boiler surfaces is seldom of real concern. Corrosion, however, takes many insidious forms and deep pits resulting in only a minimum of iron loss may cause penetration and leaking of boiler tubes. Corrosion underneath certain types of boiler deposits can so weaken the metal that failure of tubes occurs. In steam condensate system, replacement of lines and equipment due to corrosion can be a costly problem. Why Water Treatment is Needed : As feed-water enters a boiler the heat causes hardness (cal-cium and magnesium salts) to come out of solution. Untreated the hardness deposits on the hot boiler metal to from scale. As water evaporates in the boiler the feed-water impurities concentrate. Even small amounts ot iron, copper, and silica can accumulate in the boiler-water and c

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