We have an API 650 tank of 8m diameter and 9m heigh which is equipped with internal pipe running on the bottom of the tank with holes and flowing air as means for mixing the fluid in the tank.
well it's actually a means to prevent excessive sedimentation on the bottom o f the tank since the...
Duwe6
Agree with you.
One last question. if no telltale holes provided (which mean we can not do soap test), should a simple PT to examine the weld of the repad be sufficient?
JStephen
Thank you, however I've found many tanks where the roof nozzle repad is full seal welded and yet no telltale hole is provided.
or if rephrase, if we decide to seal weld the repad of the roof nozzle (repad to the roof plate and repad to the nozzle neck), does API 650 suggest to add a...
I was wondering why in API 650 paragraph 5.8.4 and 5.8.5 do not mention the requirement of telltale hole for the roof opening repad, either manhole or nozzle. In the Shell opening section (para. 5.7.1 to 5.7.6) it is clearly mentioned for this requirement.
However in paragraph F.7.3 (point 3.)...
