Bellows corrosion
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The bellows are made of materials 310s and 316L; both have been tested. The medium involved is carbon black smoke, and corrosion occurs frequently and severely. What’s going on? Does anyone know?
What is the flue gas temperature? What are the components of smoke? Only by making things clear can we help you.
It contains chloride ions that can affect stainless steel. :)
The bellows of our ammonia escape analyzer was also severely corroded; later, the bellows was replaced with a full-bore ball valve.
It is recommended to use imported 1.4529 super austenitic steel resistant to chloride corrosion; if you need samples for testing, please contact me
In normal flue gases, there are many various components such as amine salts, H2S, sulfides, and elemental sulfur; therefore, clear medium parameters are required to accurately analyze corrosion issues. If condensate accumulates in the condensate bellows, corrosion will be severe!