Head loss calculator

[Jaysreefworld]

Im trying to figure out my head loss by using the head loss calculater on the home page but my return pump isnt an option. So, which pump can I select to be equivalent to the ATB3200?

Thanks in advance

 

[Dr. Reef]

Flow Star 3200
MaxFlow 3200 GPH
Power Consumption 115 Watts
1.50 Inch Inlet
1.25 Inch Outlet
Flow Chart
3200@1FT
2438@3FT
2135@5FT
MAXHEAD 12FT

 

[Jaysreefworld]

Flow Star 3200
MaxFlow 3200 GPH
Power Consumption 115 Watts
1.50 Inch Inlet
1.25 Inch Outlet
Flow Chart
3200@1FT
2438@3FT
2135@5FT
MAXHEAD 12FT

I already know that. I'm speaking of the head loss calculater on the home page. To determine after my 90s, unions and such.

 

[Dr. Reef]

that is ur head loss and u can minus a few more gallons for elbows and unions. those calculators are not 100% accurate either.

 

[neurosis05]

If you can fiqure out the pump curve and you have Microsoft excel you can add your pump to the calculator. If your interested I can post some links on how to do it tomorrow

 

[whodah]

I made some curves for plumbingpy that you are welcome to:
http://code.google.com/p/plumbingpy/

I had to make some assumptions on the FlowStar because of the minimal flow chart points I could find online. I documented it in the .xml below. Be sure to read the note nodes below so that you can decide for yourself if you agree/disagree with my assumptions and adjust accordingly.

 <pump name="ATB Flowstar 1500"> 
    <a>0.0042052469</a>
    <b>-0.0905753968</b>
    <c>-1.0026840829</c>
    <d>26.6976521164</d>
    <source>http://atbskimmers.com/flowstar-1500/</source>
    <addeddate>2012-01-05</addeddate>
    <addeduser>whodah</addeduser>
		<pointsusedincurve>6</pointsusedincurve>
 </pump> 
 <pump name="ATB Flowstar 1800 (note: minimal flowchart avail.)"> 
    <a>-0.072291366</a>
    <b>1.1943722944</b>
    <c>-6.9043680856</c>
    <d>35.7822871573</d>
    <source>http://atbskimmers.com/flowstar-1800/</source>
    <addeddate>2012-01-05</addeddate>
    <addeduser>whodah</addeduser>
		<notes>note: minimal flowchart avail at the time of this creation. Only 3 points avail, need 4. Max head stated to be 12', assuming 0 gph at 12' as 4th point.</notes>
		<pointsusedincurve>4</pointsusedincurve>
 </pump> 
 <pump name="ATB Flowstar 3200 (note: minimal flowchart avail)"> 
    <a>-0.112773569</a>
    <b>1.9712121212</b>
    <c>-12.7687920875</c>
    <d>64.2436868687</d>
    <source>http://saltycritter.com/pumps/atb-flowstar-circulation-pumps.htm</source>
    <addeddate>2012-01-05</addeddate>
    <addeduser>whodah</addeduser>
		<pointsusedincurve>4</pointsusedincurve>
		<notes>note: minimal flowchart avail at the time of this creation. Only 3 points avail, need 4. Max head stated to be 12', assuming 0 gph at 12' as 4th point.</notes>
 </pump> 
 <pump name="ATB Flowstar 4200 (note: minimal flowchart avail)"> 
    <a>-0.0349825244</a>
    <b>0.2350663475</b>
    <c>-3.5366275933</c>
    <d>69.0763159217</d>
    <source>http://atbskimmers.com/flowstar-4200/</source>
    <addeddate>2012-01-05</addeddate>
    <addeduser>whodah</addeduser>
		<pointsusedincurve>5</pointsusedincurve>
		<notes>note: minimal flowchart avail at the time of this creation. Need 4, have 4. Really like to have more though for additional accuracy. Equation comes out weird unless I introduce a 5th point, assuming 0 gph at 12' as 5th point like the 4200's younger brothers.</notes>
 </pump>

(Hrm... I had to use the PHP tag here at RC as the CODE tag was dropping stuff for whatever reason. No biggy, just figured I'd mention it in case anyone was wondering.)