reduction of axial force

[adula29]

If we will use balancing holes we can reduce axial force by 70%.
How many percent the axial force will be reduced when we will use impeller back vanes.

 

[hydromech]

Assuming the pressure losses at the front and back of the impeller are equal, there should be none. The impeller should be balanced.

 

[PetroSynergy]

I agree with hydromech. However, many time it is not possible to have equal impeller back vanes to the actual impeller vanes. In that case, it becomes a ratio. 2:1 (reg vs back) in which there is a 50% reduction of original axial force(going from no impeller back vanes to impeller back vanes).

 

[Artisi]

If you are you pumping clean product just go with balance holes.