2 replies to this topic

[Eric Nguyen]

Dear All

 

I read PID and find out the  Note1: Provide minimum seal 1m. What does this mean?Why we need minimum seal here.

I attactched PID which related to My question.

Could any one in forum explain to me? The question look basic to designer..!

 

Thanks you

Attached Files

•  8474L-015-PID-0021-318-1.pdf   56.97KB   39 downloads

[SSWBoy]

This line is free draining from T-1501, how does the elevation of the nozzle on that column compare with the nozzle on the LCO stripper?

[AnandS]

Hoang,

Basically it seem that, designer do not want to consider the two phase flashing at outlet of control valve & also want to flashing will take place only inside the stripper. Normally liquid seal provide inlet or outlet to avoid the two phase flow to control valve as two phase inlet control valve design is very difficult.

 

I have no PFD or HMB but you can check by yourself.