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I am a young engineer at a power plant, and we have an odd application that I wanted to get some advice on. We have an aluminum bronze piping system that can have either aluminum bronze flanges (SB-169 CA-614), or carbon steel flanges (SA-105). We need to specify material requirements for cap...

Thank you all for the input. We are going to try a bunch of methods on our test specimen that we have rigged up and go from there. I also suggested J-B Weld or wait until it starts leaking and then use furmanite injection to stop the leak, but those ideas didn't go over so good...lol

One of the options they are considering is using a stone.

Ok, thanks. I will ask our machinists if we can draw file the surface. Sorry for the confusion, I am a young engineer and am not yet familiar with all of the terms.

The hand tool that we used was a pneumatic tool.

@hydtools, we tried using a hand-tool that had a rough polishing wheel (the kind that looks like a circular scour pad that you use in your kitchen) on it, but when we put a dial indicator on it and moved it around, the repaired area depth changed more than 1 mil in a distance of less than an...

Radiation area, bingo. I don't have photographs of the scratches, but I am working night shift and will see if we have any and will post them if we do. The vessel is sealed by two stainless steel seal rings. The scratches happened when one of the rings got stuck and the maintenance guys tried to...

We are trying to fix a scratch on the sealing surface of the head of a stainless steel pressure vessel. It needs to be blended to within 1 mil/inch. Now comes the difficult part. The vessel is huge, and due to schedule restraints, we are trying to fix it while it is on its stand which is 15”...

I'm sorry, I am a new graduate working in the HVAC field and enjoy reading the forums to learn from other's practical experience, so this is probably an obvious question, but when you say evaporator, are you talking about a swamp cooler, or the evaporator part of the cooling coil? The only...