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03/30/2017, 05:22 PM | #1 |
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Join Date: Jun 2003
Location: Rhode Island
Posts: 3,466
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Tunze 9004 dc
what performance advantage does the dc version have over the stock ac pump?
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03/31/2017, 07:39 AM | #2 |
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Join Date: Apr 2000
Location: Austin Texas USA
Posts: 35,785
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On the AC pumps for the US, they spin at 3600 rpm and you can only adjust the air, when you close the air you increase the water flow.
The DC pump has more torque so a slightly larger needle wheel is used, the speed is variable from about 2400 rpm to 4200 rpm and the air water ratio stays proportional as you adjust speed.
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Roger Vitko Tunze USA "He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!" Current Tank Info: 210 gallon planted tank with Altum Angelfish |
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