End Plate Thickness

Hello and welcome to CR4.

Being new to piping, I would recommend acquiring what some of us refer to as The Orange Bible, I use Version 60 myself. I don't think it will have specifically what you're looking for but it is an excellent reference none-the-less.

Otherwise, when seeking specific design information for components whose design and construction is governed by a Standard, you're best source is the Standard. As this isn't my area of expertise, I don't know the standard off the top of my head, but the menu at the top of this page (4th from the left) might.

If life is cheap, you could experiment. Anyone in the path of the fragments can be collected for recycling.

Your geometric description needs more detail. For instance, an oval does not really have a diameter. Is the plate flat, or dished? Etc.

In the U.S.A., we use the ASME Boiler and Pressure Vessel Code, which includes formulas for many shapes. Your local jurisdiction should have something similar.

If a novel shape is not represented in the Code, it may sometimes be that a simpler shape can be used, if it can be established that it is more conservative; i.e., safer.

It depends upon the wetted material and the fluid.

There are established design codes for pressure vessels as indicated above. In order to determine which one to use, one approach might be to telephone the Surveyor/Engineer from the company that will be providing burst/collapse indemnity insurance for the equipment, and discuss the proposal with that individual. That way, there would be nothing in the way of nasty surprises at the witnessed hydraulic test that is carried out for insurance purposes.

It is an important part of design for a drawing of the proposed structure to go through "second person check" and "approval" for project management purposes well in advance of the thing being built. There has to be a procedure for this at the facility. Discuss the scheme with a mentor locally.

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The plate it an oval shape and it thickness is 1", and the vessel thickness is 3/8". My boss want me to do the calculation to see if the plate is too thick or too thin. Basically he want to know what is the required thickness for the plate.

...and?

Did you tell your boss that you don't know how, and you'd have to ask a bunch of anonymous, unknown strangers on an unknown website how it is done?

What will you do if he wants verification?

Certification?

Validation?

Approval of the design by competent, registered engineer?

Customer approval?

Lyn provided you with some good references in his post #2. Read them.

I saw this in there http://www.engineersedge.com/calculators/Elliptical_Head_Design_Tool/pressure-vessel-elliptical-head.htm Is this what you are talking about?

1" thick steel for just 125 psi seems a bit extreme. Unless the contents are incredibly aggressive and a FOS of a real lot is required.

Also be aware that pressure vessel design must be conducted by properly trained people and signed off by properly trained people and then the vessel must be made by properly trained people and then tested and signed off by yet more properly trained people.

If something goes wrong you and your boss could be legally liable, regardless of what country you are in. A very dangerous business that an unqualified person shouldn't be put in the position of doing (unless this is a theoretical exercise).

Don't be afraid to tell your boss that a qualified person must check your work for both your, his and the companies safety.

- For end cap thickness, as per head type from ASME sec VIII-1 UG-32.

- For Flat End UG-34.

- For Standard Caps it treated like piping as per UG-44.