ANSI/ASME vs. API Valve Ratings

[MarkCA]

I have a project that is asking me about the equivalence between the two but since I always specify valves based upon the ASME standards for pressure and temperature, flange bolting and the like (even if the valve itself is also governed by an API stanard), so I don't have much experience with the API rated valves.

I recall seeing a chart, possibly within a standard but I can not recall exactly where. Can anyone help?

 

[vpl]

Mark

This question comes up a lot, though usually on the valve forum. Did a quick search, here's 2 threads that may provide insights:

Thread408-233901
Thread408-224641

Patricia Lougheed

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