A major problem in the process industry is the corrosion of metals in pipes, valves and other parts of the equipment constructions. This write up indicates acceptable combinations of more or less aggressive fluids and commonly used materials like ammonia.
Not all gases cause corrosion. Specifically, we are concerned with three types of gases: acidic gases, such as hydrogen sulfide, sulfur oxides, chlorine, hydrogen fluoride (HF) and nitrogen oxides; caustic gases, such as ammonia; and oxidizing gases, such as ozone. Of the gases that can cause corrosion, the acidic gases are
typically the most harmful. For instance, it takes only 10 parts per billion (ppb) of chlorine to inflict the same amount of damage as 25,000 ppb of ammonia. These corrosive gases have many sources. Both externally and internally generated gases can pose a problem to sensitive electronic equipment. Externally, corrosive gases are generated primarily from auto emissions, heavy industrial production and heat and power generation. Urban environments are particularly susceptible. Of course, weather conditions play a major role in concentrating or dispersing external gaseous contaminants. Temperature inversions can trap pollutants, producing a serious air pollution problem.
In addition to general outdoor pollution levels. specific sources of outdoor contamination in the immediate vicinity of a building need to be reviewed.
We Offer Coatings for these type of Corrosion caused due to Ammonia Corrosion. Please write us to get more details on the Product.