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Using as an example a 12v pump typical of aquarium, to regulate flow is better to use a potentiometer or a closing valve to affect a rate of flow?
A ball valve will be fantastic.Using as an example a 12v pump typical of aquarium, to regulate flow is better to use a potentiometer or a closing valve to affect a rate of flow?
Well, if there is a non-electric solution, it will always be a better one than the electric one,because electric ones tends to go wrong more often. But regardless of that, controlling a pump with a potentiometer is a great idea.I tend to agree with that. But can someone tell me why a potentiometer isn't an effective way to adjust flow rates. I'm also curious why a brushless motor supposedly cannot be reversed flowed when the current is reversed,... Or at least that's what I've heard
A potentiometer can be used for small brushed motors but the potentiometer may have to be rated to dissipate the same power as the motor. Might need a heat sink and cooling.I tend to agree with that. But can someone tell me why a potentiometer isn't an effective way to adjust flow rates. I'm also curious why a brushless motor supposedly cannot be reversed flowed when the current is reversed,... Or at least that's what I've heard
How accurate do you need it? You also mention reversibility -- is that a design goal?Using as an example a 12v pump typical of aquarium, to regulate flow is better to use a potentiometer or a closing valve to affect a rate of flow?
Or use something like a peristaltic pump with stepper motor control (or microstepper motor control):If you need accurate control measure the flow rate and use a feedback loop to control the motor speed.