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Pump Power Curve

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#1 jsaleh7


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Posted 11 January 2017 - 02:51 AM

Hi All,

When we have a datasheet for a pump that shows head for 3 different impeller sizes but shows only one power curve; does this mean this power curve is applicable to any impeller size? or this is the power curve for the rated impeller?

many thanks in advanced for your clarification.



#2 Dazzler


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Posted 20 January 2017 - 08:37 PM

Hi Jseleh7, 

It could be for the rated or the largest impeller.  You had better telephone the pump supplier to be sure.  The pump motor "installed" power should be larger than the curve, by a margin that may depend on the International Design Standard applicable for the pump. 


#3 breizh


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Posted 23 January 2017 - 01:41 AM

hi ,

Consider the resource attached , chapter 4. I'm in agreement with Dazzler's comments . Why not calling the vendor?

Hope this helps.


Attached Files

  • Attached File  pump.zip   5.94MB   28 downloads

#4 jsaleh7


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Posted 24 January 2017 - 07:32 AM

many thanks. we are contacting the vendor.


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