archieramos
Petroleum
Can somebody help me how to check for banding and what is the purpose of it and is it checked inside of the tank ( horizontal weld) or its better to check outside shell plate ( horizontal seam)?
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
banding measurement 1
- Thread starter archieramos
- Start date
- Status
-
1
- #2
pdiculous963
Mechanical
Take a look at API 650. You are trying to measure deviation away from plumb of a horizontal joint with a straight edge oriented vertically. If it is deviated outward, check from the inside, else check from the inside.
I imagine the purpose behind this is to determine if there is local bending due to out of roundness which would increase stress and potentially reduce fatigue life.
I imagine the purpose behind this is to determine if there is local bending due to out of roundness which would increase stress and potentially reduce fatigue life.
valleytank
Petroleum
Its utilized in the fabrication to control out of line plates via periodic sweep / band checks.
If you're doing this in service you're better off contacting a survey crew to give you a shell readout where you can see the out of round.
At the end of the day even if it is out by certain standard..what are you going to do about it? If its not leaking or posing serious threat I wouldn't sweat it.
If you're doing this in service you're better off contacting a survey crew to give you a shell readout where you can see the out of round.
At the end of the day even if it is out by certain standard..what are you going to do about it? If its not leaking or posing serious threat I wouldn't sweat it.
- Status
Similar threads
- Locked
- Question