12VDC Chemical pumps?

[mos68x]

Has anyone found a chemical pump that is NOT outragously expensive that we can use for compact 12VDC use in our potassium or sodium hydroxide hydrogen electrolysers? The only ones that I have found so far have been in excess of $200. I'm looking for one that is more reasonable around $50-$100.

[mael]

Seen one of these?



They all have a small magnetically-coupled pump and it's safe at least up to 100 C.

In addiion to tha the pump parts are made of very tough (and usually clear) plastic - so it won't react wih anything much.

They typically run off 12 V DC and can work from about 3 V on upwards.

I think they are excellent.

Those water pots are binned due to the thermal fuse blowing, circuit-board corrosion/deterioration or he seals leaking more than anything else, but the actual parts like the pump and the heater last forever.

[iteration69]

[mos68x]

[Jehu]