- #1
chris812
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Hello,
I have been designing a pressure vessel for the last week. I have based all my maximum allowable stresses on ASME code but can't figure out how to include drilled holes. I plan to be using a pipe welded to a cap at one end and attached to a blind flange with holes drilled in it at the other.
I am sure that the added holes will compromise the stress acting on the flange but don't know how to measure (or calculate) this. I also imagine that there would be a minimum distance between holes allowed.
If needed I am using pipe with ID of 1.1" and wall thickness of 0.11". The cap is elliptical and the flange is a nominal 1" 300 class slip on. All material is 304H stainless steel. I plan to drill a 1/2 diameter hole in the center of the blind flange.
Any help would be greatly appreciated,
Chris
I have been designing a pressure vessel for the last week. I have based all my maximum allowable stresses on ASME code but can't figure out how to include drilled holes. I plan to be using a pipe welded to a cap at one end and attached to a blind flange with holes drilled in it at the other.
I am sure that the added holes will compromise the stress acting on the flange but don't know how to measure (or calculate) this. I also imagine that there would be a minimum distance between holes allowed.
If needed I am using pipe with ID of 1.1" and wall thickness of 0.11". The cap is elliptical and the flange is a nominal 1" 300 class slip on. All material is 304H stainless steel. I plan to drill a 1/2 diameter hole in the center of the blind flange.
Any help would be greatly appreciated,
Chris