I'm going to particularize my question:
API 521 states that the relief contingency that produces the greatest back pressure should be identified for the design of common header systems and manifolds in multiple-device installations. It also states that in certain scenarios it can be appropriate...
I'm currently writing a relief valve philosophy (which includes pressure reliefing systems, emergency depressurisation and disposal systems) for a refinery. The refinery now wants to include a chapter about self secure design. I couldn't find that term in API 521 and related documents.
1) As far...