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Temperature Considerations for PRV 1811

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Holywood

Holywood

Mechanical
Jun 23, 2010
1
Dear all,

We have KHI boilers AG-5130 manufactured in 1986, PD = 37.27kg/cm2 @321°C. Now we have derated the mawp of these boilers after inspection at 35 kg/cm2. Based on ASME I these PRV's should not exceed 6% of the MAWP, therefore we must have new set pressure in our 3 Dresser consolidated 1811 series.
Since we can only set at cold set pressure, does anyone have the temperature correction factor for CDTP?

Thanks in advance.
 
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