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[phoenixmoca]

As we all know it is generally recommended that the pressure loss at the inlet of pressure safety valve is less than 3% of set pressure. But while conducting the pressure loss calculation which should be applied, the required capacity or rated capacity?

I agree with the API 520 Part II in which rated capacity is selected. So my question is how to persuade others to follow the requirement of API 520 Part II?

Thank you in advance.