Help w/Pump Sizing for multiple branches 1

[7897]

I'm trying to size a pump for use in an aquarium system. The pump flow will be 2100 gph (35 gpm). The pump suction will come from a sump. The discharge of the pump will have three branches. One branch will be to a filter at 900 gph (15 gpm) and the other two branches will return water to the display tank at 600 gph (10 gpm) per branch. Piping will be 1" SCH 40 PVC. Can someone provide assistance as to how to determine what the TDH of the pump would be (35gpm @ XX TDH)?

Thank you

 

[7897]

Here's my attempt to post a drawing of the piping layout:

 

[BigInch]

This one is great. Try out the aquarium pump design spreadsheet. Quite nice.

H:\ENGINEERING 1\Pipeline\Hydraulics\0080 PUMPS\1 Pump System Design\aquarium\Aquarium Pump Systems.htm

BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com

 

[7897]

BigInch:

was that a link to a site? I couldn't click on it.

 

[MikeHalloran]

The link points to a page on BigInch's computer, or on a part of his local network that's mapped to a drive on his computer.

Thank Mr. Gates for the confusion.





Mike Halloran
Pembroke Pines, FL, USA

 

[BigInch]

Soooo Sorry. Here's the real one,

http://www.advancedaquarist.com/issues/jan2003/featurejp.htm

Link to the spreadsheet download is at the bottom of the page under "Instructions for Using the Spreadsheet". I like the rather complete database for all the little pumps.




BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com

 

[BigInch]

BTW the spreadsheet only does a simple system. It won't do multiple branches. You'll have to try that using equivalent pipe lengths.

BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com

 

[Artisi]

BigInch -- A star performance and a great link which will be of use to point "new-hands" to in helping with some basic understanding in analysing pump selection based on their pipework etc. and making a pump selection using this information.

 

[BigInch]

Thanks Artisi. The aquarium application is an interesting perspective of the pump-system design subject as well and its a nicely written spreadsheet. A lot of work went into that one.

Surprizing to see such a well explained, easy to understand and very complete design example with Excel spreadsheet on an aquarium site. [Pump vendors take note.]

BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com

 

[7897]

HEC:

If I use the procedure you explained in you last post, how do I account for any liquid static head in each of the sections of the system?

 

[BigInch]

Add the pressure equivalent of static head to the respective inlet and outlet.

BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com