Please allow me to ask for your advise.
I have this Debutanizer Reflux Drum.
The vent line of the vessel is provided with a Hand Control valve.
This controller is for venting the non-condensables that might accumulate and will cause a
high pressure in the reflux drum.
Now, the Owner wanted to change this to PC control.
The thing is, this line is normally no flow (or intermittent) and in my opinion there is no point in changing the configuration to automatic.
My question is this,
-The line is intermittent in operation, is there a benefit in changing this to PC control?
I would like to thank for the responses i received in my previous post about a PDC across the control valve.
In the attached drawing, there is a PDC valve, i believe this controls the pressure of the Reflux Drum.
And when there's a sudden increase of pressure, the Hand Controller will be opened.
Thank you for the inputs you may give.
I apologize if Im asking maybe trivial questions.