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@MJCronin nobody begged for you to come post anything so next time I have a "quection" (USE SPELL CHECK NEXT TIME FOR ILLITERACY PROBLEMS) make sure you avoid it and don't bother with your remarks that are absolutely not helpful and a waste of everyone's time. Now get back to work being a waste...

@MJCronin as far as your questions, at the time of the original post, I didn't have pictures of any of this just yet. I do now however. As to why I didn't say who manufactured the gaskets, well that's simple. I don't know who the manufacturer is because I haven't seen the gasket. This work...

@mk3223 yes there are two different leak locations. The one this post is about was an area that didn't make sense to me at the time but I think I'm narrowing it down. The second is right at check valves which I believe the BFW is working at a higher pressure and mixing with the acid and...

@edStainless that is what I am assuming is that it started as a crevice corrosion because it's the only thing that makes sense to me as of right now. It's absolutely possible they were contaminated at installation but I won't know for sure. Now I went this morning and examined the flange...

Thank you for the response! That is definitely something I will also look into!

It's all Alloy 20 material. Valve bodies, valve trim, gaskets, pipe, everything that I have information on anyway. I haven't been able to get really into the valve itself and see if some other material is used in that particular valve that would be weak link yet. Gaskets are alloy 20 IR with...

Thank you for the response and yes I don't put a lot of faith in those things that I put as far as operating temp and material. That's what everything is supposed to be anyway that's why I put that in there. About the water, I was just meaning for this specific location, it's not right up...

Just wondering if anyone else has or is experiencing corrosion of Alloy 20 gaskets with 93% sulfuric acid? Had a valve flange and gasket get corroded away in a deadleg right off of the acid tank far away from any water getting to it. All material is Alloy 20 and the deadleg is from the middle...