My 5l spd wont keep a low enough vacuum. So I want to switch to my 2l. Should I use a 2 stage pump or diaphragm pump for a 2l short path.
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2 stage fasho
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you can even go down to a 1L flask and do a bunch of small runs so you don’t need as big of a pump. i had the same problem
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Diaphram pump is the wrong pump for spd. That’s a great pump for rotovap (5l) or buchner funnel filtering.
Alcatel 2021i is perfect for a 2l spd.
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Would an Alcatel 2021i run a 5L?
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Hmmmm
Not sure. @cyclopath or @spdking could answer that.
We only have 2l spd and 2021i’s at the lab.
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Unfortunately @spdking won’t be answering for a bit… How long? Does anyone know?
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E2m28. Has been m years go to for years
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That was my thought as well. Just trying to use what I have instead of buying new.
Ebay it is!
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What do you have? A 28 should run up to a 5L.
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I run 5l’s on 2021i’s alone just fine. Even better with a getter or full blown diffusion hooked up to it. Hell I’m one of those crazy guys who runs a turbo on an spd so maybe I’m just nuts…
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3 posts were split to a new topic: Correct pump for rotovap?