Looking for multi-stage water pump curve 1

[pumpingtips]

Hi
Anyone have a multi-stage horizontal water pump curve you could post here without too much effort? I am having trouble finding something on google and this medium will be quicker than waiting for next week to ask suppliers. This follows my earlier post re well water. Final system design duty will be 40 litres per second @ 450 m (static head is 300m). Parallel pumping will be with either two or three pumps. Therefore, pump curves for say 13 l/s @ 450 m, or 20 l/s @ 450 m would be appreciated.
Rgds

 

[LittleInch]

I think Gould and a couple of the other big pump suppliers allow you to generate your own pump curve.

http://gouldspumps.com/Tools-and-Resources/Pump-Selection-System/

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[pumpingtips]

littleinch.. thanks, but after 1hr trying I can´t get the launch to work without it defaulting to a pdf file instead of the java thing. I´ll keep trying different things.

 

[TenPenny]

60Hz or 50Hz?

Attached are a couple fo 60Hz

 

[pumpingtips]

TenPenny, good pump curve, thanks. Exactly the duty. Looking at the curve I see that NPSH requirements are very high if we are running just one pump (parallel pumps) and out to the right on the curve at say 32-34 lps. Given our high altitude project of over 4,400m we will have issues at 20 feet of NPSHR given our tank suction is only a few metres physical head.

 

[TenPenny]

There are other models available from various suppliers, including Goulds, with inducers; I think you could look at a 3355 from Goulds, in a 4x5-10 with an inducer, NPSHa would be approx. 1.1 m.

 

[LittleInch]

You need to get your duties sorted out in some data sheets then submit them to various vendors with your stated min/ max inlet conditions / NPSH etc



Remember - More details = better answers
Also: If you get a response it's polite to respond to it.