Re: [MW:24780] Nozzle Marking On Cap

Dear Mr.George ,

Let me explain my query more clearly.

One of our Pressure Vessel to be constructed with SA 106 Gr.B Pipe of 10" and SA-234 WPB Seamless Cap of same 10", as per ASME Sec VIII Div-1, 2015 Ed.

So, to perform 1" Nozzle opening on the Cap , referring to the below sketch,

can I consider the Cap as a 2:1 Ellip. Head, using 0.9 Crown radius to use in the formula, inorder to find the Arc Length.

Please see the attached file, for the calculation which I made to get Arc Length .

Hope you will understand .

Sorry for the inconveniences caused.

Regards,

Saravanan

On Wed, May 11, 2016 at 8:12 PM, George Dilintas <dilintas@gmail.com> wrote:

I would like to help you but I dont understand your question

2016-05-11 4:00 GMT+03:00 Saravanan Sornam <saravanshyla@gmail.com>:

Dear Design Experts,

With reference to the attached sheet for 1" Nozzle Marking on a 10" Sch 20 SA-234 WPB Seamless Cap for a pressure Vessel construction as per ASME Sec VIII , Div-1, 2015 Ed ,

My query is, can we consider the Seamless CAP ( ASME B16.9 ) as same as 2:1 Ellipsoidal Head for the Nozzle marking calculation, provided in the attachment for opening , inorder to find Arc length.

Also, I need reference to consider Cap as 2:1 Ellip. Head in ASME Code.

Regards ,

Saravanan

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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