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Okay, i see now, my understanding was incorrect. Thanks LittleInch lot for you valuable information.

Thanks all of you my dears, i have got helpful insight from you. Currently have discussed with the valve vendor and he is going to tackle the situation。 @ 1503-44 (Petroleum),thanks for detailed answer, i will see changing the setup option. we also will see if the upstream inlet temp. can be...

Hi LittleInch, thanks for diverse suggestions. Yes it is possible also to elevate the separator to increase the static head if confirmed the DP across CLV is much higher. Yes flashing/cavitation is common issue, i think liquid column weight as shvet pointed will be enough to prevent any...

Thanks shvet (Petroleum) for your point, i was thinking similarly to be confirmed that if there gonna be a flashing on the LCV or the pressure of the liquid coming down from the separator is high enough.

Hi, Appreciate suggestions regarding the below case. The liquid outlet from the separator is saturated, that means any reduction in pressure will result in a slight evaporation of the liquid and the formation of gas bubbles. In the attached scenario, the level control valve induces pressure...

@ TiCl4 (Chemical), Thanks, i got it, a new point for me.

Hi pierreick (Chemical), Ya i saw this we can obtain the flow rate thru the integration of the velocity profile. thanks for your point.

@ LittleInch (Petroleum), Ya in most cases flow is turbulent, so the velocity profile is Flat parabolic, this is beneficial for heat transfer or mass transfer. Thanks for your reply.

@ 1503-44 (Petroleum), Ok, i see. Thanks for reply.

Hi 1503-44, Thanks for response. As above, My question is general, want just to know the use of the knowledge of velocity distribution in engineering, such as engineering analysis or instruments installation or design etc..

Hi LittleInch, My question is general, want just to know the use of the knowledge of velocity distribution in engineering, such as engineering analysis or instruments installation or design etc..

Hi Guys, I want to know what is the practical use of knowing velocity profile in pipes in engineering? Thanks.

Hi mk3223, Thanks for your share, i got your point.

Thanks LittleInch, i am more clear now regarding flare header. however, in general does the back pressure in a line same as the pressure drop in that line?

Thanks for reply. I am not clear yet. does back pressure has relation with pressure drop in the line?

Hi guys, hope u all doing well. How I can understand back pressure as the pressure drop in the line? I seek for an intuitive explanation. Thanks.

Thanks bro mk3223 (Mechanical) & LittleInch (Petroleum), same as I guessed.

Hi everyone, I want to know if there a case where the design pressure & design temperature of a branched line from an old line can be higher than the ones for that old line? (my opinion no such case exists). Thanks for the information.

@ MortenA (Petroleum), OK , thanks.

@ PaoloPemi (Mechanical), thanks clear. EOS is good option for me.