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VM/LM Design

PostPosted: Wed Dec 19, 2012 6:31 pm
by Dave
I've being doing some research as to what works and different condensers and so on. I've drawn up a bit of a design on what I want to build but would like some feedback as to what needs improving or changing before I build it.
I've added the picture as attachment.
Already have the keg boiler setup. It will be stainless except for the tube coming out from the LM needle valve and the main reflux condenser which will be copper. With the cup trap to the LM side, I did'nt know if it needs the slnt plate below the condenser, above the 2"-1" reducer to catch more product or would create a vapour path blockage to the reflux condenser.
I was going to have a double wound coldfinger for the reflux condenser in 3" stainless, 2" column and the 1" line out to 2" shotgun condenser for the VM then reduced to 3/4" into collection jar.

Re: VM/LM Design

PostPosted: Sun Dec 30, 2012 5:32 pm
by crow
after discussions in the staffroom :D it was decided that this design was flawed (others might chime in on those faults) and there are much better designs here on the forum ;-)

Re: VM/LM Design

PostPosted: Sun Dec 30, 2012 6:51 pm
by MacStill
There certainly are better designs out there ;-)

VM/LM Design

PostPosted: Sun Dec 30, 2012 7:08 pm
by Sam.
The way I went was the double slant plate and seems to work fine for me.

Re: VM/LM Design

PostPosted: Sun Dec 30, 2012 7:27 pm
by MacStill
A boka double reducer with a VM take off between the reducers is a kick arse LM/VM rig :handgestures-thumbupleft:

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 1:22 am
by Dave
McStill wrote:A boka double reducer with a VM take off between the reducers is a kick arse LM/VM rig :handgestures-thumbupleft:

So is this a good thing now?

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 1:26 am
by Dave
sam_and_liv wrote:The way I went was the double slant plate and seems to work fine for me.

Had to put a reducer in so why not put a t piece in and be done with the slant plates. Looked a bit to difficult when building from scratch. Just kept welding bits together.

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 1:27 am
by Dave
croweater wrote:after discussions in the staffroom :D it was decided that this design was flawed (others might chime in on those faults) and there are much better designs here on the forum ;-)

And the flawed faults are...?

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 8:34 am
by MacStill
Dave wrote:
McStill wrote:A boka double reducer with a VM take off between the reducers is a kick arse LM/VM rig :handgestures-thumbupleft:

So is this a good thing now?


Your design is not the one I am talking about ;-)

download/file.php?id=1827&mode=view

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 5:03 pm
by Dave
First full run today 98% abv. Gotta be happy with that

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 7:15 pm
by Sam.
Dave wrote:First full run today 98% abv. Gotta be happy with that


Might want to temp correct that, unless you ran it in a vacuum. :teasing-tease:

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 10:30 pm
by Dave
True, still about 96% happy with that.

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 11:13 pm
by emptyglass
Good for you bloke. Sounds like your on a winner.

Do you have any figures on how fast she slams?

I'm guessing its a neutral only still, or can you make flavored stuff with it?

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 11:42 pm
by Dave
Have only done one run and got 3 litres in about three and a half hours. Neutral spirit is all I've being doing and soaking on woodchips

Re: VM/LM Design

PostPosted: Tue Jan 01, 2013 11:52 pm
by MR-E
Dave wrote:Have only done one run and got 3 litres in about three and a half hours. Neutral spirit is all I've being doing and soaking on woodchips


Was this including heat up time :?:

p.s We love pics :handgestures-thumbupleft:

Re: VM/LM Design

PostPosted: Thu Jan 03, 2013 7:44 am
by Dave
Nah, that was after it had heated and settled. Took about an hour to heat up and then let it reflux for an hour just to see what it did being the first time. Temp didn't jump around like I thought it would. Just came up and sat there steadily.