Article: Restriction Orifice

[sniperel]

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[padua]

are you suppose to depressurising down to 6.9 barg, according to API 521.....and then to atm.

[amb]

Hello Padua,

You mean to imply that pressure ratio limitation is to be followed. Ratio of 271 bara to 7.9 bara is 34.3, but 7.9 bara ti atm is 7.9.
Can you please explain further.

Thanks for your time