Mini Reversible Vane Pump.

[redboat219]

I know Bob's looking for a small reversible pumps that'll fit inside the new 2" cylinder he's working on. Just found this https://www.aliexpress.com/item/1005006718220656.html
Micro Germany THOMAS DC 5V 6V Rotary Vane Sampling Air Pump Large Flow Mini Gas Sampling Air Pump Reversible Direction

I wonder if this could be used to pump water instead of air. Vane pumps can easily handle low viscosity fluids.
Need to find out if the motor shaft has a seal.

If not, maybe use it as a reversible snort to suck air in and out of the ballast tank.

[RCSubGuy]

Nice find. Thanks for looking out for me! Based on what I'm seeing, this isn't much smaller than the pump I have already, and the fact that it's designed for air is probably a no-go without me re-designing the system.

Still, thanks for the link and info!

[Subculture]

I believe OTW were looking at a vane pump at one time, but eventually went with a water pump, but you could in theory use a pump like this in place of the water pump, although its utility would depend on the pressure they can reach. Over 2l flow per minute for a pump this size is pretty impressive.

[TuptubBuilder]

Scratch built peristaltic pump for 50 mm tube: https://1drv.ms/v/c/87b39c96b9d144ee...I7_VA?e=ZCHM6W (need to down load link)

[redboat219]

Scratch built peristaltic pump for 50 mm tube: https://1drv.ms/v/c/87b39c96b9d144ee...I7_VA?e=ZCHM6W (need to down load link)

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[TuptubBuilder]

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oh, behave