Jump to content

Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog



tank pump control valve

3 replies to this topic
Share this topic:
| More

#1 R.Y.A.D


    Brand New Member

  • Members
  • 1 posts

Posted 10 October 2022 - 07:16 AM

Hi everyone

I have a tank of butane in his liquid phase, after that we have control valve and a pump , i would like to know if it's possible to calculate the NPSHa of the pump function to the level of the liquide in the tank in dynamic mode ( sphere 500 m3 ) with liquid flow 250 m3/h.

(exemple at 50% of the level , the NPSH is 5 m , at 70 % is 6 m ) .

thank you

Attached Files

  • Attached File  2.PNG   10.58KB   1 downloads
  • Attached File  1.PNG   299.4KB   1 downloads

#2 breizh


    Gold Member

  • Admin
  • 6,324 posts

Posted 10 October 2022 - 07:49 AM


Yes, you can, refer to the definition of the NPSH (document attached).

You need to be able to calculate the head loss on the suction line, the vapor pressure of your liquid @ temperature (simulator will do).

It's a repetitive calculation.

Good luck,


#3 tarang.suthar


    Junior Member

  • Members
  • 13 posts

Posted 11 October 2022 - 12:07 AM

Hii Breizh


As mention the simulation model, can you shared the similar link of simulation model (Hysys) for different level of tank to measure the pressure of the end point.



Tarang suthar

#4 breizh


    Gold Member

  • Admin
  • 6,324 posts

Posted 11 October 2022 - 01:37 AM


Sorry I don't have simulator, not a complicated task to perform on your own.

Good luck


Similar Topics