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Hi all, Please advise on the following. for all reference this is in accordance with B31.3 2012 I have a furnace tube of material specification P5B The user needs to attach a thermocouple via fillet weld of 3mm to the outside of the tube of which the material is a P8 stainless steel. The table...

DUWE 6: Thanks buddy, you made my day. I have the same idea as you MBt 22: I have the same thought as well, with all that i have seen there isn't any guarantee that this will not be left in place as is or isolated. Littleinch: Thank you, the manufacturer has agreed to pressure test the flanged...

In my opinion, if the equipment has any means of isolation then it isn't really open to atmosphere, but anything after the isolation whether it may be valve or flange is regarded as open to atmosphere as long as there isn't anything that encourage positive isolation.

Thank you LittleInch, The reason for the flanges is that the line goes through grating to lower levels and then into the drainage system, and due to the configuration they must put the flanges on in the shop as they do not want to weld on site due to permit conditions. So what i would like to...

Hi all, Please advise on the meaning of open to atmosphere. Scenario: If i have built a drain line with two spools. One is a flanged on both ends and the other flanged on one side with an open end on the other that goes into a drainage system. Question: If the two of them are bolted to an...

Hi All, Thank you for the replies, great insight. I do feel that NBIC is a bit ridiculous and vague but it does refer to PCC-2 as reference for conducting patch repair thus the sequence of usage. This vessel is regulated under the South African Pressure Equipment Regulation. PD5500 does...

Hi all, I have a vessel that was constructed within the PD5500 criteria. It has been in service for many years and is a rubber lined vessel due to service reasons. With the rubber lining failing we have to repair the corroded area with a window patch repair. If i use NBIC & PCC-2 to do this...

Thanks SectionIX, that is exactly what i was looking for. I did not see a reference from 404.14 to say that autogenous welding was the actual application of this statement thus where process of elimination comes about this statement hypothetically could refer to different types of filler metal...

Hi all, Please help with the following understanding. As per QW 404.14 and the essential variable table in section IX of ASME for GTAW process the addition and deletion of filler metal constitutes a requalification. If for example I weld a 304 pipe using a 308 electrode/filler can i then...