Thread: regarding specs
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Unread 08-26-2005, 04:42 PM   #8
Les
Cooling Savant
 
Join Date: Oct 2001
Location: Wigan UK
Posts: 929
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Quote:
Originally Posted by billbartuska
,,,,,,,,, went through the following machinations to approximate the flows I would get by replacing an Eheim with an Iwaki. The only info I "knew" was the flow rate of my current system..the rest is easy if you have pump curves (which are available for most).,,,,,,

Not sure I follow your machinations or the flow rate you are predicting.
My method:-
Eheim1048; flow rate 2.2 lpm indicates 1.335 m(H2O) System PD (Yellow data point)
Construct "System P/Q curve" assuming P=Constant*Q^2 which gives the "dotted black line" with an intersection of the "Iwaki P/Q curve" at 4.79 lpm.
The predicted Flow Rate is ~ 4.8 lpm

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