Permissible Variation in Diameter according to ASME VIII Div.1
Permissible Variation in Diameter according to ASME VIII Div.1
(OP)
Dear all Engineers,
My pressure vessel is fabricated of 1.5" SCH 40 SA 106 B pipes and under internal pressure. However, the pipe is not straight, but is bent into a helical shape with the minimum radius of 17D. May I know what is the ovality tolerance that I should follow during the pipe bending?
Thanks for your time.
My pressure vessel is fabricated of 1.5" SCH 40 SA 106 B pipes and under internal pressure. However, the pipe is not straight, but is bent into a helical shape with the minimum radius of 17D. May I know what is the ovality tolerance that I should follow during the pipe bending?
Thanks for your time.





RE: Permissible Variation in Diameter according to ASME VIII Div.1
RE: Permissible Variation in Diameter according to ASME VIII Div.1
RE: Permissible Variation in Diameter according to ASME VIII Div.1
Tolerance of diameter is not the same that the tolerance of out of roundness.
Regards
r6155
RE: Permissible Variation in Diameter according to ASME VIII Div.1
PIPE FABRICATION INSTITUTE
PFI Standard ES-24
Pipe Bending Methods,Tolerances,Process and Material Requirements
Prepared by Engineering Committee
https://es.scribd.com/doc/235585537/PFI-ES-24-Pipe....
Regards
r6155