High Pockets on Pump Suction Line 2

[tkdhwjd]

Dear Collegues,

Will there be any issues for allowing high pockets on pump suction line provided that:
1) fluid is heavy hydrocarbon - no flashing at high points
2) NPSH_available is greater than NPSH_required

Your feedbacks will be greatly appreciated.

 

[Artisi]

"pennpiper (Mechanical) 16 Dec 06 16:47
tkdhwjd,
I am suprised at the responses you have gotten to a very simple question.

"Will there be any issues for allowing high pockets on pump suction line provided that:
1) fluid is heavy hydrocarbon - no flashing at high points
2) NPSH_available is greater than NPSH_required" ---------"

Actually the question was adequately addressed and answered with the 2 early relies from JJPellin - everything else has evolved from the various inputs of others.
Surely this is the essence of the forum - wide ranging input and discussion which unfortunately often deviates away from the original question but allows for answers to other questions and comments raised by members.

Another interesting points is, the discussion is now between members with exception of the original poster who hasn't had any further input. Is he / she still there, or have we answered the question?

However, it seems we all agree that high points can be a problem and better avoided when ever posible - but this isn't a perfect world and if you care to look round any process plant you will see a multitude of pipelines crossing road ways etc via pipe bridges (high points). That would seem to indicate a properly engineered pipe line with high points isn't really a problem.


Phitsanulok
Thailand

 

[tkdhwjd]

Dear Colleagues,

Thank you all for great inputs.

I am aware and fully agree that it is a "good" engineering practice to avoid (or minimize) high pockets on a pump suction... I wanted to see if I was missing anything. Two thinking hats are alaways better than one, in my opinion. Once again, thanks!