Friday, February 11, 2011

[MW:9805] Hot-tap hole

Dears, could you please tell me what this statement of API RP-2201 mean?

 

6.8 WELDING AND HOT TAP CONNECTION DESIGN

Welding or hot tapping should not be permitted closer than

18 in. (46 cm) to a flange or threaded connection, or approxi-

Mately 3 in. (8 cm) to a welded seam (including a longitudi-

nal seam of welded piping) unless determined by an

engineering review to be acceptable.

 

 

Eduardo Calva


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