[MW:5081] Weld proximity in pressure vessels

Dear All,

Can you please confirm if there are any mandatory limitations on weld to weld distance (nozzle to CS/ LS, welds of attachments to other welds etc.)

Details:

1. Governing code: ASME Sec VIII Dev 1
2. PWHT – Applicable
3. NDT: 100% RT & MPI on attachment/ fillet welds
4. Service – Sour

 

Does a weld meeting all above criteria (2 to 4) have an issue, metallurgically, when welds are too close or don’t have even spacing e.g. reinforcement pad to demister support ring etc.

 

With Regards,

V.Vaidyanathan

 

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