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dabarino
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My guess is use new tane but I also think that maybe wrong?
That picture is from best value vacs 1lb mkv bi directional flow unit.. I was going to build something pretty similar to this just a little more basic... I am running cryo but please explain why you would put a pressure relief valve at the top of the tree... and how much extra butane would I need add to the system? would I double it? Is that why i need a relief valve Because of all the extra tane if I'm not running cryo I would be running to high of a psi?yes, all rinses are with "clean" butane from your storage tank. If I may ask, where did you snag that pic? (if you're running cyro you might want to add a relief valve to that top tree!)
That picture is from best value vacs 1lb mkv bi directional flow unit.. I was going to build something pretty similar to this just a little more basic... I am running cryo but please explain why you would put a pressure relief valve at the top of the tree... and how much extra butane would I need add to the system? would I double it? Is that why i need a relief valve Because of all the extra tane if I'm not running cryo I would be running to high of a psi?
The amount of butane required is a function of how much material is extracted, and as a rule of thumb I plan on about three column volumes of flood and ASSume the packed column only holds about 70% of an empty column.so lets say i start with 2.5 lbs of butane normally would i flood through the bottom with 1.25 then seal everything up and flush down the top with another 1.25..... 2.5 is already more then i need as well
When you guys say 'cryo' do you mean co2, N2, or both/either? How do you keep the butane viscous enough at such low temps with just passive pressures, or is that why you've been talking about LpG?
I put a sight glass in the top vent and used a Model 150 600 psi wafer style sight glass from John Ernst, http://www.johnernst.com/flow_indicators_p9.html#110SM
I also put a 2" Metal Glass sight window in the lid, so I can monitor the process.
http://www.metaglas.de/en/products/metaglas-fused-sight-glasses.html
Me too on all that, except I thought the co2 slurry was only about -40ish, and mine is more liquid than gel. Also I use denatured etoh instead of iso. I need a better temp gun too, mine only goes -10.when i say i "cryo" i mean a simple home made cryo fluid like dry ice and 99% iso rubbing alcohol. it turns into a thick napalm like substance and its suppose to get to about -77 c.. but my temp gun only goes to -38 so im not 100% on my actual temp... i can do a passive recovery at that temp on 2.5 lbs of butane in about 20-25 mins and thats pulling a slight vac on the extractor when im done
When you guys say 'cryo' do you mean co2, N2, or both/either?
How do you keep the butane viscous enough at such low temps with just passive pressures, or is that why you've been talking about LpG?
Also how does this bi-directional process affect quality? Honestly my washes are usually so conservative there's enough left in the material that's it's worth giving away to reprocess for charity. I know I leave a good bit on the table, but economy of time dictates I spend energy on other tasks.
We typically make a cotton candy extraction and run our water bath at ~70F <85F and during recovery, flood our column jackets with 150F water.I Do my water bath on the hotter side like 110-120 but I also drain my dewaxing column of cryo fluid and fill with same temp hot water... and the more dry ice I add to my slurry the thicker it gets.... it gets like molasses if I add enough
Well if that's how you do er, I'm gunna have to give her a go like that myself.. I'm thinking those temps were adding a little color to my end product as well.. its been a little bit prone to waxing around the edges if you turn the heat up to..We typically make a cotton candy extraction and run our water bath at ~70F <85F and during recovery, flood our column jackets with 150F water.
We've also used a hot pot for pressure, by which you place a tank of LPG in 110F water and connect it via the vapor valve to the vapor valve on the LPG supply tank, so that it adds head pressure during injection.
Biflow improves yield, and allows both extracting for yield or top quality. If I want to make museum quality bragging rights extracts, I make about a one volume flood from the top for the sample, and then extract the rest as a separate operation.