Point by point,
I often build regulator and custom meter stations for the local gas company.
The next project is a regulator for a city gate (gas company gets gas from pipeline company).
[Got NYC inspection work with such
The person in charge of design sent word that some of the 4inch flanges had some type of plating or "coating" other than the usual green or black paint. They are a shiny gold.
Never seen such
I have only seen a picture so far but it looks like it is maybe anodized to me.
Might be shipping paper etc. that says the supplier or manufacturer. Call them and ask.
My concerns are, will grinding be sufficient to make the fumes less toxic? Even the normal paint that gets heated up next to the weld is bad enough.
Tasty and had diet of ! My guess is the utility that is your customer is OSHA compliant and can answer your questions. A local section of the American Welding Society might have there people attending answering the question informally.
Would this plating cause the procedure to change, negating the procedure I have for this company?
API and/or ASME call for removal of "contaminates" therefore it is a mute question. Hit it with a buff wheel might be a good idea. Half a second and "gold" gone you are off and running.
When or what would these plated fitting used?
New York City area high salt water ground water levels etc. corrosive as Hell.
The gas company is looking into it too.
Cool !
Thought I would borrow from some of the knowledge here also.
Hope I am helpful.
Thanks,
Floyd
Sincerely
Len Andersen Engineer ASME IGTI /
len@lenandersen.com
len.turbine@gmail.com
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