ASME Flange modification
ASME Flange modification
(OP)
I am under the opion that by reducing the hub lenght of a 600# flange it does not change the rating as long as the min thickness `C` is kept Quoted from a ASME site "Question Does ASME B16.5-1996 have a required tolerance for a lapped ,slip-on,or socket welding flange for the overall lenght through hub?
Answer "no"
My problem is trying to convince an engineer that by welding a flange that has had the hub machine off and welded to a flexible hose that any loading generated by the system is absord by the flexible and the sole purpose of the flange is to act as a seal.
Has anyone been in this situation and how was the problem resolved
Answer "no"
My problem is trying to convince an engineer that by welding a flange that has had the hub machine off and welded to a flexible hose that any loading generated by the system is absord by the flexible and the sole purpose of the flange is to act as a seal.
Has anyone been in this situation and how was the problem resolved





RE: ASME Flange modification
In all ASME items, there are more-than-adequate safety factors. The Code was developed based on both sound engineering, and literally billions of hours of operating experience.
Engineering calculations only try to duplicate reality; actual experience and destructive testing is needed to validate the initial calc's. By compairing the results of experience & testing with the calc's, the formulaes were adjusted and finalized. All that was done, verified multiple times, peer-reviewed, and accepted prior to your current engineer being born.
RE: ASME Flange modification
Regards,
Mike
RE: ASME Flange modification