Re: [MW:34094] Forming marks on Dish End of pressure vessel

not acceptable

if they have done spinning after progressive pressing, these would disappear. it will be stress raisers in operation.

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Thu, Mar 23, 2023 at 9:26 AM <ameerbashasheikh@gmail.com> wrote:

Hi, 

One of our pressure vessel manufacturer recently supplied Oil and Gas separator having distinct forming marks on dish ends. Supplier claims that those marks are aesthetic and do not hamper vessel performance. Photo is attached herewith. 

Being the end user we are not in position to make final decision whether to accept the pressure vessel with distinct marks on dish ends and put under operation or not. The pressure vessel is designed as per ASME sec VIII Div I and vessel is U Stamped. The vessel is hydro tested and holds good. ASME inspector has not commented anything on forming marks or pressing marks in their release note. 

Please guide should we accept it or to ask supplier to rectify the same or any section of ASME code confirms non acceptance of same in pressure vessel. 

Regards, 

Ameer Basha 

Sent from my iPhone

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