You know different impeller diameter with different pump performance curve.There is no comparability with different impellers.You have to reselect the correct operating duty point from curve,pump speed,head,motor power,or your pump will not run normally.
Why not trying to change the pump speed...
Please tell more details such as Flow rate,Pump Head ,any gravel or sand in the seawater ?
Heavy-Duty Centrifugal Slurry Pump Manufacturer
www.gempump.com
If you use an undersized motor on a pump,the pump will not run normally,let alone the maximum Flow rate and Head.
Heavy-Duty Centrifugal Slurry Pump Manufacturer
www.gempump.com
rajm008,
Why do you keep fixating on "tolerance" ? +/- 1mm dimension is ok for your impeller tolerance.
You need a range of pump outputs ? Just test the standard impeller with changed flow rate/head/speed/NPSH.Then you will get the curve you need.
rajm008,
Agree with Artisi and bimr.
Each kind of pump has standard performance curve with standard impeller diameter.And also has others non standard curves with non standard impellers(e.g.open,semi-open,closed,different diameter/flow channel).Forget your Max/Min diameter things,choose the...
If there is a decrease of Flow Rate and Head ?Running properly without Vibration and Noise? How about the other pumps ? I think you have the right to claim .
Heavy-Duty Centrifugal Slurry Pump Manufacturer
www.gempump.com
The shaft seal could use the packing seal(most widely used), expeller seal and mechanical seal.I think this pump is small,you may use mech seal which is not very expensive.
Heavy-Duty Centrifugal Slurry Pump Manufacturer
www.gempump.com
Hi Nak12,
Please see the pump performance curve,then you will know the relationship between the Flow and Head.
Heavy-Duty Centrifugal Slurry Pump Manufacturer
www.gempump.com
mehrdadkntu,
The greater the diameter of the impeller, the higher the Head.Different diameter of impellers to meet best operating conditions that will be close to the best efficiency point.
Reading and understanding centrifugal pump curves is key to proper pump selection.
Heavy-Duty Centrifugal...
