Straightness tolerance
Straightness tolerance
(OP)
Dear all ;
According to ASME B31.3 what is the tolerance of piping straightness for a welded c.s. pipeline 1 km long
Thanks in advance
According to ASME B31.3 what is the tolerance of piping straightness for a welded c.s. pipeline 1 km long
Thanks in advance





RE: Straightness tolerance
Remember - More details = better answers
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RE: Straightness tolerance
Two points make a straight line.
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RE: Straightness tolerance
Some locations and pipes will accommodate significant horizontal shifts and zig zags, others will be laser line straight.
Not everything is written in codes....
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Straightness tolerance
RE: Straightness tolerance
If nothing then it becomes a judgement call. As said, for a line of that length, I would place a maximum of 1m away from a notional dead straight line or a maximum of 1 degree at any one point in terms of deflection.
What have you got?
do you have any pictures you can share?
you give us very little to go on here.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Straightness tolerance
Reaction to change doesn't stop it
RE: Straightness tolerance
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Straightness tolerance
With my respect to all of you
RE: Straightness tolerance
Loss of support is another problem. Check the stresses in the line, using the deflected shape. Do the lines need to be continuously drained.
Reaction to change doesn't stop it