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Two-piece manways on API 650 tanks?

thread1452-334863

Two-piece manways on API 650 tanks?

Two-piece manways on API 650 tanks?

(OP)
Does API 650 require a manway cover / adapter to be made from one solid piece of plate? Can it be two pieces (say, an inner and an outer section) that are bolted or welded together?

David

RE: Two-piece manways on API 650 tanks?

I'd have to look at the exact wording to see, I suppose. But it's not uncommon to have mixers that are built into or bolted onto manway covers, although some additional thickness is required in that case.

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