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Minimum distance for shell course vertical seams

Minimum distance for shell course vertical seams

Minimum distance for shell course vertical seams

(OP)
Does anyone know what the minimum distance that the vertical seams on mating shell courses can be to each other?

Or were I can find it in the API standards? Thanks in advance.

RE: Minimum distance for shell course vertical seams

Depends on which standard...

For API-650 see 3.1.5.2.b which states that the minimun separation of vertical seams on adjoining shell courses shall be 5t there t is the thickness of the shell plate.

jt

RE: Minimum distance for shell course vertical seams

(OP)
Thanks jt.

RE: Minimum distance for shell course vertical seams

Be careful here.  Although the minimum is stated in API 650, for constructability, you would want to have a minimum of 2'.  If you don't, especially on thin steel, you will increase your chances of peaking and banding problems in the intersections.

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