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displacement on elbow at operating case (Design Temperature)

displacement on elbow at operating case (Design Temperature)

(OP)
20" long radius elbow (thk.6.35mm) getting displacement of axial direction 46mm on operating case (Design Temperature). after putting loop on line

This 46mm is acceptable or not?


Thanks regards

RE: displacement on elbow at operating case (Design Temperature)

Your question makes no sense.

46mm would commonly be pefectly OK as a displacement of an elbow in a suitable loop configuration. However perhaps you should be more concerned with stresses and loads.

RE: displacement on elbow at operating case (Design Temperature)

is the more information on your system? your original statement appears very broad.

RE: displacement on elbow at operating case (Design Temperature)

jsn1980,
Read your question and then ask yourselve could you provide an informed response to the question. If you are honest the answer would be "No". So how do you think others can provide an informed response? Please re-write your question/query such that people on this forum can respond and advise you appropriately.

RE: displacement on elbow at operating case (Design Temperature)

(OP)
20" long radius elbow (thk.6.35mm) getting displacement of axial direction 46mm on operating case (Design Temperature). after putting loop on line

This 46mm is acceptable or not?




My question is not clear ,Sorry to all

Anyway i got answer.This answer for above question is

axial displacement of 46mm to be check at piping Layout drawing.

whether this 46mm axial displacement is Clashing with nearest piping or structure?

Max acceptable Axial Displacement is + or - 50mm
Max acceptable lateral Displacement is + or - 100mm
Depends upon project specification

RE: displacement on elbow at operating case (Design Temperature)

The answer you provided is rubbish.

The max acceptable displacement quoted is totally of the top of someone's head.

Whether or not the displacement quoted is acceptable is a function of:

Axial movement permitted by supports and general clearance to allow expansion.
Length of loop offset to absorb expansion.
Bending stress in the loop elbows.
Axial stress in the expanding pipe.
Axial force acting on line-stops.





RE: displacement on elbow at operating case (Design Temperature)

C2it,
Spot on answer.

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