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Hi All,

I'm working for a natural gas utility. I was wondering if anyone has experience with oils slugs in natural gas distribution piping. The line is too small to pig, so field workers have been blowing off gas through a small drum to purge the line, but this is potentially dangerous and very messy. I have been researching into knock out drums and I want to size it down for portable use, possibly fitting it with a mist eliminator and a flame arrestor.

I've been using Souders and Brown calculations, but I am unsure whether it will be effective as a small portable unit. I have looked through many books, but none comment on small units.

Has anyone had a similar problem? or knows of a product/solution used in industry? Thanks.

Also, I'm having trouble finding a lighter weight flame arrestor. Do they exist? Cheers! Thanks for any help!

Dan