Flow Velocity in vertical pipes / tubes for axial flow pumps

[ALEXDAV]

Does anyone know if there is an official paper in which I can find that the flow velocity above 2.5m/s is allowed for axial flow pump operation. Thanks in advance for your help.

 

[vpl]

Alexdav

Flow in a vertical pipe section should be the same as in a horizontal pump section, especially with a pump pushing the fluid along.

As for the axial pump question, Cranes Technical Paper 410 (or 410M) "Flow of Fluids" contains a table which specifies the minimum flow rates and pipe diameters which will lead to a velocity of 2.5 m/s or greater. As far as I know, there is not anything which says that you can't have flow rates greater than 2.5 m/s; that is a fairly moderate flow rate. But the question might be, "Is your axial pump designed to pump that capacity?"

Can you provide a bit more information, like the size of the piping and any pump information you have? Or what your specific concern is?



Patricia Lougheed

Please see FAQ731-376 for tips on how to make the best use of the Eng-Tips Forums.

 

[ALEXDAV]

Hello Patricia, Many thanks for your advise. This information helps.

 

[Artisi]

Your posting is not clear as to what you are trying to establish.

Naresuan University
Phitsanulok
Thailand