Search results for query: *

Thanks SnTMan & gr2vessels

Unfortunately not a single sensible comments received.

Dear All, Thank you for comments. I attach the files in pdf and word. I have chosen 88.9 mm bolt diameter and circumferential spacing is 146.25 where as minimum is 180.97 mm. http://files.engineering.com/getfile.aspx?folder=4d0405b0-9758-49d2-83dd-870ff10017da&file=Graphics.pdf

Missed attach the filehttp://files.engineering.com/getfile.aspx?folder=db2ef5df-04ec-4efc-8c22-cd6ead6559e5&file=E-6273AB.pvdb

I am struggling to design the flange with 130 barg pressure. MOC is SA 182 F51. Bolt material is SA 320 L7M. Gasket material SDS SPW. Design code is ASME VIII div 2 If I provide sufficient number bolts, bolt spacing is less than recommended. I tried with various bolt sizes ranging from 1 " to...

I agree with Jamsel

I never heard of this. My opinion is that it is uselesss; I am not sure though.

As I read, the paragraph is not specifically for P11 materials. It says that for P11 materials , the rules are additional to some XXX rules of section IX. For your other query, you keep looking.

Design of flat head is not related Appx 14. Refer UG 34 . Z = 3.4 -2.4 d/D. In your case, it is 1

I can definitely say that your approach would not be conservative. I suggest you use small span and Z factor(defined in UG 34) as correction for rectangular shape.

Please explain "the nozzle separation chart " . I heard this for the first time.

jtseng123, As per my understanding, the thrust will always act whether upstream piping is straight or curved. The same concept you can see in appendix 2 caluclation of flange(Hydro static end force). I also experienced the same that when pressure thrust is accounted for, most of the nozzles...

gr2vessels, This is can be used for non Hemisphercial heads only. Incase of Hemi sphercial heads 0.85 joint efficiency to be used; I just referred the code.

Please provide the setch

Well then fine

Something like above formula appears in shell DEP or any other specification. This is the minimum thickness prescribed apart from the requirements by pressure. A very simple equation is available for calculating the thickness of shell under internal pressure of as per UG 27(c) of ASME VIII...

bwfs, As far as appendix 2 is concerned, rating of the gasket (dimensional standard) does not matter. It is concerned with ID and OD and gasket properties. You can use any dimensions of gasket (non standard) with a condition that the gasket should lie between flange id and bolting. My...

It seams that you are at basic level of designing. Gasket does not have pressure rating truly as far flange design concerned. I suggest that you perform a manual calculation of flange as per Appendix 2. Then you will have more clarity.

Speckworm, You can use threaded plug of ASME B16.11 which is rated to be 6000 class

Corresction to above post: Please read it as ASME VIII Div1 .