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Galvanic Corrosion and Electrolyte in piping 1
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TugboatEng
Marine/Ocean
It can be both. For myself working in the marine industry, the electrolyte is typically outside of the piping. In most other cases the electrolyte is inside.
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TugboatEng
Marine/Ocean
Properly selected, your gasket will prevent the process fluid from contacting the faces of the flanges.
You are asking a very complicated question so the only correct answer we can give is, "depends".
But I can tell you authoritatively that if you have a large ratio of steel piping to stainless you'll probably be ok. If you have a large ratio of stainless to steel you will not be ok.
You are asking a very complicated question so the only correct answer we can give is, "depends".
But I can tell you authoritatively that if you have a large ratio of steel piping to stainless you'll probably be ok. If you have a large ratio of stainless to steel you will not be ok.
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EdStainless
Materials
There will be an area inside the gasket where each flange material is exposed.
Bolts electrically connect them on one side and the electrolyte (conductive working fluid) on the other.
You have a circuit and therefore likely galvanically driven corrosion.
They don't need to be wetted where they touch each other.
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P.E. Metallurgy, consulting work welcomed
Bolts electrically connect them on one side and the electrolyte (conductive working fluid) on the other.
You have a circuit and therefore likely galvanically driven corrosion.
They don't need to be wetted where they touch each other.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
If you cannot get away from it, you have option to use “flange isolation/insulation kit”. Just search it on Google, lots of information about the kits from several suppliers.
Some more information:
Some more information:
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