I need an alternating current water pump to do a fluid dynamics experiment. But finding an alternating current pump is difficult. Right now I only have a DC pump.
Please recommend a small alternating current water pump that operates at around 3-12V. The appropriate size is slightly smaller than the palm of your hand.
We would appreciate it if you could let us know the model name or product address.
thank you
AC motors at that voltage are rare - so I think it's unlikely that you will find such a pump.
Why can't you just use your DC pump with a rectifier? 
btw: as well as voltage & size, we'd also need things like the pumping rate & head to be able to recommend a pump
If so, can you recommend an AC pump that runs on a higher or lower voltage than that?
And at what voltage do AC pumps usually run?
you still haven't said what pumping rate & head you need.
again, why not just use a rectifier with the DC pump that you already have?
Usually mains.
AC pumps are usually larger (think well pumps, etc.) and they have to be insulated and safety-grounded because you are mixing lethal voltages with water/liquid.
I have something similar to this. (It's just a pump and I don't have any controller for it. I don't think there's even an on/off switch. You plug it in and it runs until you unplug it.
1 Like
Not necessarily! For years I have used submersible aquarium pumps in a birdbath sump and they are ALL run from AC mains.
Are you sure they're not actually DC pumps with a transformer & rectifier ... ?
EDIT
OP says it needs to run off 3-12V AC
Absolutely know that! Have trashed many that have quit because of plastic bearings going out.
1 Like
I have to conduct a fluid dynamics experiment, and in the process, I have to make the fluid flow in both directions.
But I only have a one-way water pump and this is no longer useful.
But for me it is difficult to find an Arduino bi-directional water pump.
Can you recommend a two-way water pump a little smaller than the palm of your hand that operates at a voltage of about 3-12V?
I would appreciate it if you could provide a photo, model name, or link.
I apologize for incorrectly referring to the AC pump in the previous question. A AC pump meant that the direction of fluid movement was bidirectional, and did not mean that it used AC power.
thank you for reading.
Search for a "positive displacement gear pump" or a peristaltic pump.
Alternatively raise or lower the reservoirs at either end of the system to create a height difference.
Could you recommend a product name? Please provide link or model name
Need more information.
Liquid type?
Flow rate in liters per minute?
Maximum pressure in kpa?
Maximum cost in dollars?
The cheapest are the hydraulic pumps used for radio controlled models. The next price level has diesel transfer pumps. For higher pressures look at the pumps used in expresso coffee machines. Beyond that there are industrial pumps that cost hundreds of dollars.
Hello cjwprime
Take a search engine of your choice and ask the WWW for 'peristaltic pump' to collect some data to be sorted out to get the needed information.
@cjwprime, please do not cross-post. Threads merged.
I just want a bidirectional pump. just like this or this. and could you recommend some bidirectional water pump for Arduino (UNO), run in 3-12V. ASAP
hmm...
Is this pump bidirectional pump for arduino?
Every now and then it is helpful to read and study the data sheet.
2 Likes
Why not ask AdaFruit customer service, "is this pump reversible?"?
2 Likes
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.