Electronics > Projects, Designs, and Technical Stuff
maximum stepper motor wires
<< < (4/4)
beanflying:
At that size take sludge handling with a grain of salt. A nutating type of diaphram pump will only have small clearances internally. They were always very niche and Peristaltics were the common non valved option.

I used to work for the importers of this company https://fluidmetering.com/ that would see you with a valveless option and the ceramics should stand up well to anything abrasive also they will self prime reasonably.

The other type of pump for a quick and dirty option is the Jabsco or Johnson Flexible impeller pump. Typically these will have more flow than you need but they self prime well and your muck handling ability will be well up.

If it is only for condensate water actual flow rate shouldn't be that critical so look at straight DC (or AC) with an encoder which was more normal rather than muck around with stepper drives.
Simon:
The motor comes with the pump but the supplier is too lazy to come up with the complete package including the driver but that works in my favour. The solids will only be what is sucked out of the air and gets through a foam filter.

I am doing 200mL/m, do you have any suggestions?
beanflying:
Are you making or having made the tank too? There is plenty of all in one systems out there.

In Oz for tiny flowrates we had used these guys in the past https://littlegiant.com/products/hvac/condensate-removal-pumps/ but typically we worked on bigger industrial systems than this sort of gear. The smaller HVAC even then was always stripped to the bone on $ and quality of parts so we tended to avoid it.

Skip the FMI I linked above you can't afford it and the Jabsco/Johnson option is way to much flow so skip that one too.
Simon:
Yea this has to be cheap. I have an approximate quote of £30 per pump and motor assembly, and they are quite compact. A chip to drive a stepper is £5 so lots of money left over from the £50 we would spend on pre-made drivers to do the complete controller saving money on things like relays and ice stats which increases the budget.
Navigation
Message Index
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod