Outer and Inner ring - calcs
Outer and Inner ring - calcs
(OP)
Hi Everyone!
Can somebody point me where I can find the way how to calculate minimum thickness and height for the outer ring with an o-ring groove and the inner ring which is a filter plate please?
Design code: ASME VIII Div 1
Lodad: Internal Pressure, filter and water mass above filter plate
Please find screenshots below:


Cheers!
Can somebody point me where I can find the way how to calculate minimum thickness and height for the outer ring with an o-ring groove and the inner ring which is a filter plate please?
Design code: ASME VIII Div 1
Lodad: Internal Pressure, filter and water mass above filter plate
Please find screenshots below:


Cheers!





RE: Outer and Inner ring - calcs
RE: Outer and Inner ring - calcs
Thank you for your comment. Can you elaborate why this is not a non pressure part? Internal pressure is acting on the filter plater from the bottom and the top. Is it the reason why the filter plate is treated as a non pressure part?
Any thought about outer ring?
Cheers,
Michal
RE: Outer and Inner ring - calcs
I am not clear how the outer ring was attached to the vessel, so I don't have any comment about it.
RE: Outer and Inner ring - calcs
thank you again for your comment. The outer ring is welded with two fillet weld in the corners (bottom and top).I reckon, this joint should be calculated as follows:
a) top flange thickness in accordance with figure UG-34 (k) and eq UG-34 (c)(2)(2)
b) outer ring in accordance with Mandatory Appendix 2, figure 2-4 (3a) with a flange shape modification and 2.7 calculations of flange stresses should be replaced with calculation of swing bolt bracket stresses.
What do you think about that?
Cheers,
Michael
RE: Outer and Inner ring - calcs
I agree the outer ring shall be calculated per ASME VIII-1 Appendix 2 as you state.
Regards,
Scott