Corken T-91 (recover 6lbs a minute)

What are you gonna start using

Silica/carbon

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Thatā€™s a much larger pump than the mvp6, ya? And at some point it hits 1.5. Whatā€™s your average, youā€™d say. Because at my curve, Iā€™m probably pushing 4lbs a min.

And not to sound rude or anything. But, I not that concerned with what the pump can do at ā€œmaxā€. More or less, whatā€™s the average, is what I like to know.

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A bit over 1#

The mvp150 is the same, 6cfm pump as the mvp60 itā€™s just able to handle higher pressures. Same size motor, different internals (as far as I know)

Not going to lie, Iā€™ve ran a few mvp 150ā€™s and even at anything close to 100f, with a propane blend, I didnā€™t see 1.5 a min. Granted they all were incorrectly heated, with very weak kiss heaters. Only thing Iā€™ve seen remotely close, is the blackmire. I know the korken is much beefier and is capable of more. But, without scorching your product. I canā€™t see a pump keeping up with me at nearly the same temperature. Unless it costs more than my system itself. I recover at literally half the temperature of what this post is claiming. Maybe going hotter isnā€™t the key, just saying.

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Aye, Weā€™re all skinnin cats here.

I chose the MVP because for one I got a good deal, two I am local to the company and they have fast turn around times incase it does go down, and my only other options at the time were haskel or the punisher. Iā€™m really happy with it. I dont have the ability to go passive at this time.

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How do you keep the dust from the silica/carbon from contaminating your solvent like mol sieve beads do?

Iā€™m using an MVP-150 and Iā€™m around 1-1.5#/min depending on ambient temps.

Not even close to worth the 8 - 10k youā€™ll spend versus passive.

At scale, you cannot beat a pump. If youā€™re trying to break 150 - 200 lbs a day passive is gonna be a huge headache.

At smaller scale, why introduce the burden of extremely high sound (requiring hearing protection) and added electrical components?

Passive all the way unless youā€™re pushing for industrial scale, then go for a pump.

Also, whoever is in here talking about latent heat of vaporization, is right. Your limiting factor in most cases the heat provided to the evaporation vessel (collection vessel) is what is doing the bulk of work in regards to how fast recovery is occurring.

Also, Iā€™m with @Dred_pirate on temperatures of evaporation.

Sureā€”the bulk fluid will never reach 150C before completely boiling off, but if you consider the contents of the collection vessel as homogenous, then the boundary layer, in which most of the vapor is formed will be superheated to near the temperature of the heating fluid.

In this minute boundary layer terpenes are still becoming gaseous and escaping the system. High power, low temperature.

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At least Iā€™m not talking to a wall. You understand what Iā€™m saying. Thank you.

And if I had the right chiller, I could easily run that much in a day. But, I donā€™t do large, large scale.

Next time I go to see the Oklahomies, Iā€™ll have to see it run that fast.

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Iā€™d honestly be worried about the oil making contact with the wall still.

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I have always been worried

But it shatters ! I agree with @Dred_pirate on possible terp losses
But I can get away with that for now
In the land of. The blind one eye is king

An other negetive factor in my sop for now is I collect after 5 runs
Meaning that the terps of the first run
Have been treu 5 evaporation stages
And for sure on every run I loose some

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Not disagreeing with high(er) collection pot temps equaling loss of flavor profile but curious if anyone thinks that due to positive pressure of collection vessel would adjust terpene bp?

My collection tends to sit around 50 throughout run and I tend to pour(spout) at around 20psi(into mason jar)

Havenā€™t looked at bp chart latley but arnt most recorded bp for terp/flavor profile at atmospheric pressure?

Not trying to derail this thread but been wondering about this a while.

As far as reciprocating gcā€™s anyone know why all cannabis equipment retailers have necked opening down/ added a lot of 90ā€™s?

Illuminated extractors on ig has the configuration I imagine to be most effective but I believe the corken they use is also bigger than t291.

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Damn what are you using for solvent pouring at 20 psi? I pour at like 4 psi, into jars as well. 0 psi for shatter

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Lots of oil soaked shirts id guess

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Haha! Right? My wrists get splattered at 5 psi

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i mean technically boiling the terps off makes snappier shatter :wink:

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WHo WaNts tHaT?!

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People who arenā€™t in this to make fire, thatā€™s who

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I was a devout member of the passive church until I needed to run 200# a day and then I needed a new player on my team a MVP and @TheGratefulPhil is right to scale we must plug inā€¦like Dylan did and damn the haters

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Dred letā€™s say for example that a 2" line set can flow 10 lbs/min butane vapor when conditions and pressures are just right to achieve that particular flow rate.

Well then why canā€™t you just put 2" lines on any old passive system and magically recover at 10lbs/min?

If I started selling 2" wide lines with the tagline ā€œRecover passively at 10lbs/min with these lines!!ā€ would you think itā€™s true?

Itā€™s the same with these pumps. Just because a certain rate is advertised doesnā€™t mean itā€™s easily achievable right out of the box.

A pumps flow rate, just like a plain old hoseā€™s flow rate, usually involves some carefully planned ā€œgivensā€ like inlet and outlet temp/pressures which cannot be reproduced consistently across all extraction systems. If you supplied unending vapor at the right inlet/outlet pressure it would likely hit the advertised rate. The supply of vapor is generally our biggest limiting factor in extraction.

Of course resellers try to ham it up as much as possible and I certainly understand your frustration that youā€™ve bought into their shtick. They take ideal conditions and then give you the best rate for the top of the bell curve under those conditions.

But thatā€™s all just advertising. Taking their claims at face value is like believing the off-the-shelf ā€œpower boosterā€ additives for your gas tank will really give you the HP numbers listed on the bottle.

Huh? What does that first sentence even mean?

I mostly research and write this shit out for myself, not anyone else. I donā€™t give a care if you address me or not. Honestly most of what you say is conjecture posted up with no supporting evidence.

Do you only read the forum on your small phone screen or something? I know I write more than most and I also know 90% just skim right past it but if you take out the wide side margins this forum has what I actually write is no more than a few decent paragraphs.

I feel like I need to provide evidence for my posts. Itā€™s not acceptable to me to just write something with the caps lock on and present it as established fact.

Again, I donā€™t understand what youā€™re talking about here.

They definitely load/unload massive tanks and rail cars with compressors. What do you mean by ā€œmassiveā€ industries? Iā€™m really confused by this, please explain.

In certain areas Iā€™ll admit I do need schooling but so do you. I recommend you start with reading comprehension. I know these longer posts really bother you but take some time and read carefully before firing back.

Did you read the definition of latent heat of vaporization? It means that in fact, no, your extract will not be ā€œheated to that degreeā€ if itā€™s in a highly diluted solution.

Do you understand the pressure/temperature curve and how it relates to the temp of your boiling solution?

When the solution is heavily diluted its temp is correlated with its pressure, not the temp of the heat exchanger.

If the heat exchanger is at 150F and pressure is 23psi (butane) the solution temp is only 80F. If the heat exchanger is at 85F and the pressure is still 23psi, itā€™s still at 80F but itā€™s boiling off at a slower rate.

Did you read the part where I said higher heat is only acceptable when the collection pot is highly diluted? Thatā€™s very important.

If you have a highly diluted solution the probability that a heat sensitive molecule will ever encounter heat that will damage it is extremely low.

Even if a terpene hits the heat exchanger at 150F that doesnā€™t mean it will heat up to 150F instantaneously. It will likely take on a little bit of heat and quickly ricochet back into the solution and be cooled back to the solutionā€™s boiling point.

For fuckā€™s sake, Iā€™m not recommending 150-160F to everyone. Thatā€™s just what Roguelab said heā€™s using (70C) and I said it should be ok IMO.

Iā€™m not too concerned with ā€œcuck operatorsā€ (is that who youā€™re consulting?) and what they might forget to do. Iā€™m on top of my shit. I didnā€™t recommend 150-160F as something for everyone to try. However, in a large system with a highly diluted solution it should be ok for a short time. Especially if you are using pure propane and your solution temp is way lower than butane.

Iā€™m just saying you can up the delta T when conditions are advantageous for a boost in vapor generation without damaging the oil.

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