distance between two longitudinal seams if they are in the same shell
distance between two longitudinal seams if they are in the same shell
(OP)
The distance between two longitudinal seams in the adjacent shells shall not be less than 5t where t is the thickness of the thicker joint as per API-650, I wanna know what should be the distance between two longitudinal seams if they are in the same shell? off course it depends upon the available sizes of the plates but how much at least it should be ?
ASME or API does not give any referrence regarding this issue.
ASME or API does not give any referrence regarding this issue.





RE: distance between two longitudinal seams if they are in the same shell
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: distance between two longitudinal seams if they are in the same shell
Generally, the issue with the API tank would be weld distortion, with several feet preferred. Basically, you're asking, how short can a shell plate be.
RE: distance between two longitudinal seams if they are in the same shell
but from my view point it would be desirable to separate two weld joints ass long as prevent their HAZs to overlap each other.
RE: distance between two longitudinal seams if they are in the same shell
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: distance between two longitudinal seams if they are in the same shell
RE: distance between two longitudinal seams if they are in the same shell
RE: distance between two longitudinal seams if they are in the same shell
RE: distance between two longitudinal seams if they are in the same shell
Prior to rolling no undercuts, PT or MT and RT spot.
After rolling and prior to weld the second seam: RT 100%.
PWHT must be considered.
This is good engineering practice for pressure vessels
Regards
r6155