Needle Wheel CO2 Diffusion/ Fractionating impeller Diffusion....
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Old 10-28-2008, 09:29 PM   #1
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Needle Wheel CO2 Diffusion/ Fractionating impeller Diffusion....


I received some new needle wheel pumps from Danner.
They come stock with Venturi assembly for easy set up.
I modified this pump to work with a current project.

So far it throws out tons of mist and is very simple to set up. I wanted to get other peoples thoughts on needle wheels versus Mazzei loops.
I use both and I have to say this needle wheel pump is sweet and a million times easier to use.


Let me know what you folks think..

Regards, Orlando
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Old 10-28-2008, 11:24 PM   #2
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The plumbing looks far simpler. Does the CO2 enter where the brass part is? I can't tell much from the picture.

Will you provide a link to it's site?
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Old 10-28-2008, 11:27 PM   #3
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Looks a hecka lot simpler!
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Old 10-28-2008, 11:30 PM   #4
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It(needle wheel) also requires less energy.

Venturi works on pressure differentials, the needle wheel on mechanical dwell time to chop up the bubbles.

So for lower pressure applications, typical for us, this is likely a nice option.

Regards,
Tom Barr
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Old 10-28-2008, 11:37 PM   #5
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I don't have any links to the pump. The only difference is the venturi assembly.
I removed the stock venturi and built my own with pop fittings. Thats the yellow/silver thing my tubing connects to.

Yes, its way easy to install and will come in many pump sizes..

-O
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Old 10-29-2008, 06:49 AM   #6
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Is that the Mag Drive with fractionating impeller?

http://www.marinedepot.com/ps_ViewIt...161~tab~1.html

I've thought about trying out one of those.
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Old 10-29-2008, 06:50 AM   #7
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I use a Sedra Needlewheel pump myself.

http://afishybusiness.com/index.php?...roducts_id=178
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Old 10-29-2008, 11:42 AM   #8
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Red Sea has one also that's used on their skimmers:
http://www.aquariumguys.com/berlinturbo3.html

But it needs to be used in a sump.

But I like the look of that mag one.
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Last edited by tazcrash69; 10-30-2008 at 12:57 AM.. Reason: new info
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Old 10-29-2008, 12:08 PM   #9
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I'm a big fan of my needlewheel setup, and will use it again in the future. Can beat the simplicity, price, and performance you get with them.
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Old 10-29-2008, 01:41 PM   #10
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Hmmm...just sold my mazzei because I didn't like it. Maybe this would be better? It looks like it would fit well in my system. Are they desinged to be stand alone CO2 misters/diffusers?
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Old 10-29-2008, 03:22 PM   #11
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They are designed to be used in DIY application according to Danner. I think it works great so far.

- O
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Old 10-29-2008, 03:24 PM   #12
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Quote:
Originally Posted by JDowns View Post
Is that the Mag Drive with fractionating impeller?

http://www.marinedepot.com/ps_ViewIt...161~tab~1.html

I've thought about trying out one of those.

Thats it! They make a whole selection of sizes. And you can remove the needle wheel and add more fractionating material such as mesh or SS wire.

-O
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Old 10-29-2008, 05:39 PM   #13
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Quote:
Originally Posted by Orlando View Post
Thats it! They make a whole selection of sizes. And you can remove the needle wheel and add more fractionating material such as mesh or SS wire.

-O
Why remove the needle wheel impeller? Just mesh mod the impeller and you get even better fractionation.
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Old 10-29-2008, 07:29 PM   #14
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I advocated needle wheels in the mazzei thread and got shot down quickly.

Don't know why, the reefers recognized the superiority of needle wheels over venturis a long time ago.
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Old 10-29-2008, 07:33 PM   #15
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Quote:
Originally Posted by speakerguy View Post
I advocated needle wheels in the mazzei thread and got shot down quickly.

Don't know why, the reefers recognized the superiority of needle wheels over venturis a long time ago.
Because a skimmer design requires certain ranges of flow rates and pressures that are out of the scope of venturis whereas a CO2 misting system can support higher pressures and high flow rates.
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co2, inline diffuser, mesh mod, needle wheel pump

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