MISALIGNMENT OF EXHAUST PIPE
MISALIGNMENT OF EXHAUST PIPE
(OP)
Greetings!
I need guidance from experts about what is code limit for this type of misalignment or is there any accepting criteria?
What should be the solution for this please?
Thanks in Advance


I need guidance from experts about what is code limit for this type of misalignment or is there any accepting criteria?
What should be the solution for this please?
Thanks in Advance


RE: MISALIGNMENT OF EXHAUST PIPE
And was the phone shaking so much or had a dirty lens??
I can't tell anything from this picture but there is no code that will tell you this, only "workmanship" limits in the construction or installation specification, but then I guess you don't have one?
It might look shite, but if it works, who cares??
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: MISALIGNMENT OF EXHAUST PIPE
Thanks for your reply, posting new pic as well
RE: MISALIGNMENT OF EXHAUST PIPE
Mechanical or engine and fuel forums would be better.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: MISALIGNMENT OF EXHAUST PIPE
RE: MISALIGNMENT OF EXHAUST PIPE
RE: MISALIGNMENT OF EXHAUST PIPE
Exhaust systems expand and contract a lot and are often quite fragile so need some flexibility to avoid cracking due to vibration
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: MISALIGNMENT OF EXHAUST PIPE
RE: MISALIGNMENT OF EXHAUST PIPE
In US Bellows installation instructions include this guidance
- Do not force-rotate one end of an expansion joint for alignment of bolt holes. Ordinary bellows are not capable of absorbing torque.
- Make the piping systems fit the expansion joint. By stretching, compressing, or offsetting the joint to fit the piping, the joint may be overstressed when the system is in service.
- It is good practice to leave one flange loose until the expansion joint has been fitted into position. Make necessary adjustment of loose flange before welding.
Misalignment will reduce the available inservice motion, and might reduce the service life, depending on the particulars of the specific bellows joint,The expansion joint manufacturers association also publishes a guide publishes some standards and a practical guide.
RE: MISALIGNMENT OF EXHAUST PIPE
Hope that helps, MikeL
RE: MISALIGNMENT OF EXHAUST PIPE
If this were a new assembly I was taking delivery of I would reject it. However, experience says it will likely last a very long time. So I wouldn't suggest shutting down to correct the joint. These installations don't operate anywhere near the rated pressure of the joint.
Depending on how the system is piped, you may find this mount of deflection once the system is hot. This is a result of poor design and not fit-up.
If this amount of deflection appeared over the operational life of the unit you may have some pipe hangers that need adjustment. I usually see exhaust systems hung from a threaded metal rod with rubber isolator. If the rod is too short the isolator will melt.
RE: MISALIGNMENT OF EXHAUST PIPE
Thank you so much for all information you provided, more success to you guys.