Dharmesh Mistry
unread,Jul 12, 2017, 4:20:18 AM7/12/17Sign in to reply to author
Sign in to forward
You do not have permission to delete messages in this group
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to material...@googlegroups.com
Dear Experts,
I have a query and need your advice.
How much allowable tolerance of pipe straightness/vertically while
installing pre-assembled pipe spools and fit-up for field joints?
Presently, we have received prefabricated spools and those having a
vertical deflection of 12mm in 1222mm length.
The material is SS347H --> Pipe --> 6-inch dia --> 14.01mm thickness.
Field joint fit-up is achieved with zero mismatches (as shown in
attached photo).
According to ASME B31.3, para 335.1.1(a), piping distortion, There is
no specific tolerance limit given for alignment piping
distortion/deflection.
If you have any data/reference from CODE for allowable tolerance of
piping straightness/vertically/deflection, kindly share.
--
Thanks,
Dharmesh
D20-AppA-ASME_B31.3-r1a.pdf