Pump options for pentane.

[cyclopath]

this methanol pump might do the trick.

@cyclopath

Both pushed and pulled, including priming, through a filter. Almost emptied it too (pumping air). Cold didn’t phase it. Not as fast as N2 (and N2 does that other stuff).

Caveats: Came lubicated. Intended for fuel not food. Leave intake screen accessible or supplement it with something both bigger & smaller.

Materials and construction appear appropriate. I removed lubricant and cleaned everything thoroughly.

Want the ability to feed it 3-20V and reverse it. Should be fairly simple.

@cyclopath

$400 Methanol fuel pump…

No complaints after 2hrs at. -50C

@Cold ethanol pumps

https://westechequipment.com/product/137700-01-8-gpm-ez-8-bluetext-methanol-pump-bluetext-3-4-in-inlet-outlet-12v-dc-pump-only

[SidViscous]

A mag drive gear pump or centrifugal is perfect, cheapest option is to buy one that takes a standard motor like a 56C and just swap a rated motor onto it. Plus you can sell the original motor back

Edit: I was looking for a good example on eBay but couldn’t find anything the come up every once in a while for $4-600

[moveweight]

That’s slick

[thesk8nmidget]

Used this metering pump for hexane for a couple years with great success.

Only 200L an hour though.

[MedicineManHempCo]

Whoa! That thing looks badass! Way overkill for what I need, however. May I ask the ticket on that bad daddy?

[thesk8nmidget]

I think they were around 3500.

[SidViscous]

Here’s a decent option for 57 GPM, hook it up to an atex motor and you’re good to go. A little expensive and probably need to replace a couple o rings, I prefer mag drive pumps because there’s no mechanical seal. As long as you’re running C1D2 though should work just fine. Also note the max rpm is 900 so you’ll likely need a VFD:

https://www.ebay.com/itm/334220005901?hash=item4dd110920d:g:HnkAAOSwZwFhknpp

I’d guess about $1800 all told with motor and drive, less if they accept an offer at $750