Greetings!
This is to seek your advice on below issue in Atmospheric Storagge Tank Bottom Plate.
It is very common in the indusrty that underside/soil side corrosion happens due to poor sealant management. This causes corrosion of bottom/annular plate outer projection ring at first and...
Good Day Members,
We have double wall Ethylene Refrigeration tank designed per API-620. Thickness loss is detected on annular ring projected outside the outer tank. Assessment procedures in API-653 are only applicable to tank constructed as per API-650 and API-12C. Similarly API 579-1 don't...
Greetings Guy's
ASME B31.3 gives below formula for Hydrotest pressure calculation
Pt=1.5*Pd*Rr
Pt= Hydrotest Pressure
Pd= Design Pressure
Rr= St/S for pipe and component without established rating but shall not exceed 6.5
= Ratio of component pressure rating at test pressure to the...
Dear metengr,
Thanks for joing the discussion, i agree that API-570 is an in-service inspection, repair, alteration piping code. But ASME B31.4 also address the integrity assessment and repairs of in-service transmission pipelines.
ASME B31.4 is very lenient for design & construction compared...
Dear Guys,
Thanks for your responses regarding the scope limits of B31 codes.
Lets please talk about the repairs as per B31.4 and API-570 as i mentioned above.
Regards.
Dear Guys,
Greetings & Good Morning.
I need your help to understand the scope limits of B31.4, B31.8 and B31.3 codes. We have NGL line designed and constructed under B31.4 upto our facility fence.Inside the fence the same line is designed and constructed under B31.3.
As per B31.4 Fig...
Hi guys.
I am confused with these calculations given in API-653, tmin in the formula of Ht is not clear whether this is the min.remaining thickness or the calculated min.thickness by the formula for certain tank dia, height,Sp.Gravity of fluid.Similarly what thickness shall be used in the...
Appreciate your response on below;
API STANDARD 653
FOURTH EDITION, APRIL 2009
ADDENDUM 1, AUGUST 2010
ADDENDUM 2, JANUARY 2012
ADDENDUM 3, NOVEMBER 2013
9.2.4.6 states;
If a door sheet cut line crosses a [highlight #FCE94F]lap-welded[/highlight] or a riveted [highlight...
