Copper hot water tank....

[YHB]

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.

[fuf]

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

[Capt-Cudellez]

-----------------------

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

------------------------


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.

[Icefever]

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.

[Capt-Cudellez]

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)

[fuf]

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.

[Icefever]

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???

[Capt-Cudellez]

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.

[Icefever]

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

[Icefever]

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





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