I appreciate the feedback.
Under larger sizes and higher pressures are what we are trying to get a handle on. We have had some instances where the impact upon opening has domed the bonnet. We had never had a failure where the end flange attaches to the body.
And in response to the inlet side...
In designing various pressure relief valves we typically use a welded flange on one end of a weld tee. We then machine a bonnet that bolts to this flange (see attachment).
My question is, to determine the thickness of these two components, can you adapt ASME Section VIII Div 1 Appendix 2 for...