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ASME SEC I

ASME SEC I

ASME SEC I

(OP)
hi,
Is ASME sec I allow patching at bigger hole to make it smaller as per diameter of down comer od?I.e We made offset hole on drum and now we have to move down comer appx. 1", so can we patch that 1" offset howl with the same matl. and thkness of pipe?
Also can we do PWHT again on the area where PWHT already done?
I need guidence ASAP.pls..
Thanks in advance
Mihir5577

RE: ASME SEC I


Quote:

Is ASME sec I allow patching at bigger hole to make it smaller as per diameter of down comer od?I.e We made offset hole on drum and now we have to move down comer appx. 1", so can we patch that 1" offset howl with the same matl. and thkness of pipe?
Also can we do PWHT again on the area where PWHT already done?

Reply; Yes, if approved by the AI.

RE: ASME SEC I

I agree with metengr.

I would ask you to submit a suitable repair procedure that is supported by your QC System.

RE: ASME SEC I

how big a hole?
you may not even need to PWHT again, check for pWHT requirements and your AI,
genb

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