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Effective Orifice Area

Started by rohollah, Jul 17 2012 01:00 AM

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#1 rohollah

rohollah

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Posted 17 July 2012 - 01:00 AM

Dear experts

Why the actual discharge orifice area is greater than the effective discharge area specified
for that valve size per API 526.

regards
Rohollah

#2 fallah

fallah

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Posted 17 July 2012 - 03:25 AM

Rohollah,

Because the rated coefficient of discharge is generally less than effective coefficient of discharge for a PSV.

Fallah
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