Sogevac 40 CFM for 20L rotovac?

equipment
#1

Yall think a Sogevac sv40 could be used for a 20 L rotovap ? I’m already getting one for my SPD and just wondering if I can use it in both spots.

Thanks,
HK

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#2

That is a LOT of suck for a rotovap.

Too much? Quite possibly…

Certainly way more than required.

Seems like a decent choice for your SPD

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#3

Do you have a go-to vacuum pump for rotovaps? I’ve heard diaphragm pumps are usually used. Appreciate any direction on a make or model that you’ve had good experience with.

Lanphan quoted me a water aspirated pump for $300, but I’m leaning towards something more like this:

Really appreciate any feedback.

Thanks,
HK

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#4

People like diaphragm pumps because they don’t have a problem with pumping solvents through them, IMO I’d rather have deeper vacuum if at all possible, but oil flooded pumps don’t like having their lubricating oil watered down with solvent, so I’d recommend a Welch Duoseal - used they can be had super cheap - but only if you are willing to invest in a proper cold trap to make sure the welch doesn’t get ruined by sucking ethanol or other vapors through it.

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