Flush Type Clean out Door NDT Reqd.
Flush Type Clean out Door NDT Reqd.
(OP)
Dear Experts,
Kindly let me know, Which NDT is feasible to proceed with accurate result of Flush Type Clean Out Doors of newly construction of water Tanks? We recommended contractor to conduct PAUT but they decline stating it will provide fake result as there is a gap of 1.5MM in the assembly of RF pad-to-Neck plate Fit-up.
Kindly let me know, Which NDT is feasible to proceed with accurate result of Flush Type Clean Out Doors of newly construction of water Tanks? We recommended contractor to conduct PAUT but they decline stating it will provide fake result as there is a gap of 1.5MM in the assembly of RF pad-to-Neck plate Fit-up.





RE: Flush Type Clean out Door NDT Reqd.
RE: Flush Type Clean out Door NDT Reqd.
RE: Flush Type Clean out Door NDT Reqd.
Its the fabricator,who declares PAUT is not applicable as when we asked them to conduct PAUT in beginning, all joints got rejected and now instead of PAUT they are performing UT only in which We are not able to identify all the defects and joints are getting accepted. As per API 650 its directly represented "UT in lieu with RT" so have no backup of any standard/Spec. through which we as a consultant can demand for PAUT instead of any other NDT.
RE: Flush Type Clean out Door NDT Reqd.
RE: Flush Type Clean out Door NDT Reqd.
RE: Flush Type Clean out Door NDT Reqd.
Poorly trained UT techs have historically caused a lot of false rejects because of the above, and welds with backing bars. But only the lousy techs. NOTE: I do MT, PT, RT, UT and have trained on PAUT.
RE: Flush Type Clean out Door NDT Reqd.
With your UT experience if you had a similar corner joint as seen in the above 'Detail 4'.. but with a full-penetration weld throughout the insert and repad thickness; Is this something a competent level II UT could handle in a shop environment or would you be leaning more towards PAUT?
This is something that needs to be checked pre and post PWHT with the same tech.
RE: Flush Type Clean out Door NDT Reqd.