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Thread: pumps

  1. #1
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    pumps

    what ios the diff between a presure rated pump verses a mag.

  2. #2
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    Pressure rated pumps are meant to deal with higher head pressures whereas mag pumps are for flow only.

  3. #3
    Senior Member Deafboy's Avatar
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    I thought "mag" meant a magnetic drive. My Iwaki pump has such a drive. There are no seals between the impeller housing and the motor on these pumps. I would think the maximum head, pressure, flow, are mostly related to the impeller design and motor power.
    20 g reef, 72 g reef

  4. #4
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    I took 'mag' to refer to the specific line of pumps called 'Mag' pumps (eg. Mag 9.5)
    Nick

  5. #5
    Senior Member Bonaqua's Avatar
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    MAg pump means, there's no shaft for the propeller.
    Propeller is moulded around a magnet and it acts like a rottor.
    Meaning the propeller is in a separate chamber and needs no seal between propeller and the rest of the motor.
    This also means there's no leeks of oil and other residues from the motor to the water.

  6. #6
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    Oh, my mistake, I though he meant Mag pumps as in Pondmaster Mag pumps.

  7. #7
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    Pressure rated pumps can maintain a lot of their flow through higher "back pressures" ..like high head, spray bars, long horizontal runs. They usually have impellers with curved fins as compared to low pressure flow pumps that have straight flat fins on the impellers. Pressure rated pumps also usually have tighter tolerances between the impellers fins and the cavity walls so less more water is moved with more pressure. The highest rated pressure pumps are also usually "direct" drive.

    Mag is a brand name and a style of pump. Many magnetically driven pumps are referred to a "mag" drive pumps. But they may not be "Mag" brand pumps.
    Rob

  8. #8
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    yes i was talking about the danner mag pump.are these pumps pressure rated?

  9. #9
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    are there any pumps that are submersible like the mag,but pressure rated?

  10. #10
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    To my knowledge there are very few if any high pressure rated pumps that are submersible. Reason being that submersible pumps are almost always "mag" driven which dose not go hand in hand with creating pressure. The best Quality pumps for pressure requirements are in-line pumps.
    Rob

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