aburafdi
Materials
- Feb 13, 2012
- 48
Dear all,
Refer to thread292-290132 (misalignment of tube to header weld). In this thread it was answered by Metengr that such misplace / misalignment of joint between tube and header is a non-conformance. I fully understand this. Now my question : is there any tolerance on how much the mis-alignment is still considered acceptable ?
For example : I have nozzle to header joint. The nozzle is NPS 4 Sch XXS - grade91, header NPS 8 Sch 160 - grade91. Is misalignment of 8 mm (0.31") still acceptable ?
Refer to thread292-290132 (misalignment of tube to header weld). In this thread it was answered by Metengr that such misplace / misalignment of joint between tube and header is a non-conformance. I fully understand this. Now my question : is there any tolerance on how much the mis-alignment is still considered acceptable ?
For example : I have nozzle to header joint. The nozzle is NPS 4 Sch XXS - grade91, header NPS 8 Sch 160 - grade91. Is misalignment of 8 mm (0.31") still acceptable ?