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[F.Sh]

Hi

 

Steam is used for purging of fired heater fire box.

On the P&ID, there is a restriction orifice to fix steam flow rate.

After the Restriction Orifice piping class is changed from 300# to 150#.

 

is the correct location of class break as mentioned above or shall be at furnace nozzles? 

 

Please see the attached snapshot of P&ID.

 

Thanks in advance.

Attached Files

•  Purge.JPG   32.63KB   0 downloads