Pls. explain pump control

Discussion in 'Anything DIY Related' started by neo, 27 Jul 2010.

  1. neo

    neo

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    Hi,
    looking at doing some DIY automation.
    Could someone pls explain how these pumps work where the flow is controlled between 0 and 100%.
    Are these pumps DC pumps and then you just control the voltage to them ?
     
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  3. brettb2020

    brettb2020

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    you cant control normal 220v ac pumps very easily. the only way is to change the frequency and while changing the frequency, the voltage must change accordingly as to not burn the pump out. this method becomes very expensive.

    the only easily controllable pumps are dc pumps. the boyu WM4 series, resun 15000 series and there are a few tunze dc pumps. you just need to vary the voltage to control the speed.

    hydor koralia make an ac 12v pump but you also need a variable frequancy drive for those, hence the high price of there controllers.
     
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