StillSmart

Just to clarify things, I think there are two different subjects here.

Icefever is talking about a LM design which works fine, Aidanmac is talking about a VM which did not.

If everyone understood that without me butting in - tough.

for the info. I am still lost as to what LM and VM design is though.

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fuf wrote: for the info. I am still lost as to what LM and VM design is though.

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With liquid management (LM) you have a method of collecting the condensed vapour from the reflux condenser (slanted plates and the cup as shown in an earlier post are 2 examples of this). Which ever method you are using they are designed to overflow back into the column packing giving you the reflux.

There will be a takeoff output probably with a needle valve to draw off this condensed distillate as product.

With Vapour Management (VM), you use a large valve to draw off vapour, which then needs to be condensed using a condenser separate from the reflux condenser.

Here is my VM\LM combo VM on the left, LM take off on the right. This is a slanted plate style.

OH woe is me... I was given to believe that the design I posted was a VM column.. I want to build a VM rather than a LM. When I searched for a Vm still this is/was one of the designs that come up. So where am I going wrong??

Any pointers to a VM column plans/design...I would gratefully receive.

VM is super easy. I would probably just get a 76x76x28 reducing tee file off the end stops for the 28mm bit and do this with the pipe. (Pic from another post, ignore the fittings being used)

Thank you Capt for the explanation and the I'm a bit of a newbie to all this stuff, just 3 weeks in but I'm learning.

Thanks Capt, so the 28mm pipe has the one end cut at a 45 angle, then the other side would run though a condenser to collect???

Yip, it will work without the 28mm pipe going into the column too. I just think it helps encourage the vapour into the take off.

Cheers Capt..YHB

You read all you can find on VM and LM columns, you think you have a handle on it then you find out, that you ain't. Well I hope now that with the help from you guys on here now I do..

Thanks

Another couple of pieces of the jigsaw arrived this morning...





It's a lovely tight fit into a straight connector....oooo happy days..