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The search for a proper recovery pump..

SneakySneaky

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Veteran
Wow good work SS, very fast. I appreciate that.

Please post any follow up they provide you with.

I'm pretty sure I'm going to get the pump either way, I'm sure I will find a use for it. Any info you can share would be great.

Thanks again!

i wouldnt spend your money till an answer is given from the company or you might end up with an expensive paperweight. it can be used as a vacuum pump though so it would be great for purging winterized oil.

Just got emailed back for a Chinese refrigeration company for a anti explosion recovery machine with an oiless compressor, it's called the cmep-6000 , and they put that 6000 in there for a reason I was quoted 6600 per unit holy balls. Is this what safety is worth, I've also been looking into a pump from knf but the highest output they have is 100 psi is it possible to recover butane efficiently only using this type of pump ?


you dont want the system going over 100 psi, average pressure on the output of the appions/cps/promax (gast into the 50# gets upto 70 psi) going into the recovery tank is about 150 when its filled to 80%.....so if it cant handle an output pressure of over 100 thats no good and you never want the inlet pressure aka the terpenator over 100, the high pressure clamps are only rated to 150, some sight glasses less than that, and the $500 pop-off valves on the mk5 release at 100.
 

Gray Wolf

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Just got emailed back for a Chinese refrigeration company for a anti explosion recovery machine with an oiless compressor, it's called the cmep-6000 , and they put that 6000 in there for a reason I was quoted 6600 per unit holy balls. Is this what safety is worth, I've also been looking into a pump from knf but the highest output they have is 100 psi is it possible to recover butane efficiently only using this type of pump ?

Did they send a cut sheet showing how it is made?

For instance a Caresaver is rated for explosive gases, yet is not oil less.

It is also costs less than half that much and the reason that extractors haven't flocked to it, is that is isn't oil less, and we are in fact making pharmaceutical products.

It also isn't very fast, which brings up the question of performance. Did the Chinese brothers share that information?

If it's oil less, and its performance justifies $6600, my bet is that there are a number of brothers and sisters that would bite the bullet and belly up to the bar.

Consider a commercial extractor that is down again from pump failure, so they are working on the pump, spending costly labor and supplies, instead of extracting with a pump, and producing income.
 

Gray Wolf

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How do you think a KNF UN726FTP would perform on on MKiiia in front of an a5 with two #50 tanks? I would eventually like to upgrade to the auto pressure switch if I did this but it would be manual at first.

I know its not the ideal pump, but I have an opportunity to scoop one up for next to nothing. Your guys thoughts?

I'll include a link to the manual but I'm not sure if it is allowed.

Some excerpts:

Model - UN726FTP
Max vacuum - 50 Torr/28 in. Hg
Max pressure - 20 PSIG
Free-Flow Cap - 17 liters/minute

KNF’s N726FTP series of contamination-free diaphragm pumps feature solid PTFE heads combined with our exclusive PTFE coated molded diaphragm. They are capable of pumping highly aggressive gases without attack to the pump or contamination of the gas stream.

Solid PTFE completely eliminates blistering or peeling of pump components, assuring the longest duty available for corrosive gas pumping applications. This pump is available in single-head and our unique twin-head designs fitted for either table-top use or for OEM applications mounted directly into your equipment.

(This one is the single head)

CONTAMINATION-FREE TRANSFER - The diaphragm design uses no coated-metal wetted parts. This insures a leak-tight seal and prevents contamination of the pumped medium while at the same time increasing system reliability.
PTFE heads and FFPM valves* are resistant to most corrosive gases & vapors, reducing periodic maintenance.

http://www.knfusa.com/?eID=download...ons/Lab/211290-211291-UN726_FTP_rev061212.pdf

Thanks :tiphat:

Not a good match for a Mk IIIA, but it might be a good choice for cold boiling with an oven. You could cold trap on the discharge side of the pump, vis a vis the inlet side, which is easier to control.
 
No the Chinese didn't send my a data sheet just figured I'd put it out there for anyone that was interested, personally I wouldn't trust an outsourced solution I'd rather find something cheaper and made in the good ol USA. Thank you for that lesson tho I am well aware of Grey wolf's design and how the terpinator functions. Since 150 psi is all that's needed for the butane recovery there is tons of options from knf that are set with explosion proof motors but I have a feeling these are also cost an arm and a leg.

Also another question are brushless motors safe enough to compare to an explosion proof motor ? I'm assuming the biggest threat is the commutator and getting rid of any sparks is the issue not an explosion proof sealed motor case
 

SneakySneaky

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No the Chinese didn't send my a data sheet just figured I'd put it out there for anyone that was interested, personally I wouldn't trust an outsourced solution I'd rather find something cheaper and made in the good ol USA. Thank you for that lesson tho I am well aware of Grey wolf's design and how the terpinator functions. Since 150 psi is all that's needed for the butane recovery there is tons of options from knf that are set with explosion proof motors but I have a feeling these are also cost an arm and a leg.

Also another question are brushless motors safe enough to compare to an explosion proof motor ? I'm assuming the biggest threat is the commutator and getting rid of any sparks is the issue not an explosion proof sealed motor case

link to motor....

the pressure on the outlet of the promax regularly gets over 150, and thats on the 2nd pump... thats not including the problems that arise from the fluctuation of the delta pressure causing the pump to stall out cause its not designed for inlet pressure or much outlet pressure.

when knf gets back to me about the requests i made yesterday about which pumps would work and what modifications would be required ill let you guys know....


Thorough recovery refrigerant and automatic stop when the suction pressure up to -0.04Mpa, that equals -5.8psi or about 12 inHg so it cant recover as much as possible and when using n-butane on the scale that machine requires thats a lotta leftover gas (airgas =550 for 24lbs) maybe we can find a use for it if it recovers fast enough, let it get the unit down to 0 and have the gast finish it off since the gast cant stand pressure fluctuations.

trust in gray wolf my friends just cause he hasnt said anything hes always working on something...hes a super computer in a world full of ti-82's lol.
 
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Chonkski

Member
A Mk IV and a V are different animals, starting with pot size, but I have no doubt that WolfWurx could help you mount your Mk IVB kit on a cart, if you contact WW.

You are welcome to a cart print, if you want to DIY, or WW can order you a cart built.

We have them fabricated from 304SS, by Insta Fab in Vancouver, WA, and have Multi Craft Plastics in Tigard, OR cut out the HDPE shelving.

Insta Fab has been around awhile and built some of my most exotic equipment before retirement.

WolfWurx is currently awaiting the Haskel pump, to start final assembly of a Mk IVB turnkey system for an east coast extractor, so should have an example in the shop for you to see and caress, if you promise to not get it all sticky.

Alas, WW already delivered the turnkey Mk VB, but there are a couple Mk VA2's being assembled, to ogle for comparison.


Thankyou GW. I will keep this in mind
 

Eugerk

New member
demand regulator?

demand regulator?

GW?

Any luck finding a demand regulator that fits has the specs for HC's and would work for the gast? Love the manifolds you used, great place for the pressure switch.
 

SneakySneaky

Active member
Veteran
If anyone has a rebuild able or a new Caresaver recovery pump. I'm interested thanks

you dont want a caresaver pump they arent oilless, and this isnt craigslist so if you want something used try ebay or local craigslist... its against the terms of use to buy/sell items on this website.

welcome to the boards btw, roll a joint get some coffee and get ready to read a buncha stuff theres a wealth of knowledge at your disposal here.

Here's a link to the Chinese unit I mentioned http://m.alibaba.com/product/1945007081/product.html
The specs are Place of Origin: China (Mainland)
Brand Name: CM
Model Number: CMEP6000
compressor: 3HP oil less
vapor recovery rate: less than 80KG/H
liquid recovery rate: less than320KG/H
push/pull recovery rate: less than 1900KG/H
application: hydrocarbon refrigerant r600 r290...

i already answered that for ya, i love getting to quote myself hehe " 'Thorough recovery refrigerant and automatic stop when the suction pressure up to -0.04Mpa', that equals -5.8psi or about 12 inHg so it cant recover as much as possible and when using n-butane on the scale that machine requires thats a lotta leftover gas (airgas =550 for 24lbs) maybe we can find a use for it if it recovers fast enough, let it get the unit down to 0 and have the gast finish it off since the gast cant stand pressure fluctuations."

3hp is a gigantic motor and way too much for the mk3, however it could possibly be used to run a mk5 or 6 :)
 

Ironfist

New member
I know exactly what I'm looking for!! Sorry I don't spend much time on forums!! Not versed in proper lingo!! Wasn't really looking for any smart ass comments either!
 

Gray Wolf

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GW?

Any luck finding a demand regulator that fits has the specs for HC's and would work for the gast? Love the manifolds you used, great place for the pressure switch.

Got a sample demand regulator coming for trials. Used on engines running propane.
 

Gray Wolf

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One little side issue regarding pumping pressure and that is the auxillary heat exchanger that we added to the Mk VB reduced storage tank pressure from about 150 psi to 60 psi, using ice water, with dry ice added.

That speeds up the recovery but is not low enough to just use a GAST.
 

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Permacultuure

Member
Veteran
I know exactly what I'm looking for!! Sorry I don't spend much time on forums!! Not versed in proper lingo!! Wasn't really looking for any smart ass comments either!

Regis philburn has one up for sale just pm him. He's not to far from you. And don't mind the attitude some people give ya, egos are abundant here.....and dome people just can't get over themselves ;)

Keep up the beautiful work man. Your machines are top notch and domestic which is tough to beat.
 

SneakySneaky

Active member
Veteran
I know exactly what I'm looking for!! Sorry I don't spend much time on forums!! Not versed in proper lingo!! Wasn't really looking for any smart ass comments either!

not trying to be rude, a caresaver pump isnt technically oilless so there are contaminants getting into your final product, which for pharm grade extracts isnt good for patients. if you have found a way that the pump wont do that there are many many people that would be thankful for that info.

One little side issue regarding pumping pressure and that is the auxillary heat exchanger that we added to the Mk VB reduced storage tank pressure from about 150 psi to 60 psi, using ice water, with dry ice added.

That speeds up the recovery but is not low enough to just use a GAST.

it most certainly did!! the pressure on the promax output on the beta unit was at about 150, and the unit with the new heat exchanger the promax outlet pressure never went over 70 (except when i forgot a new valve and the pressure got to about 300 and started making noise that informed me something was awry). After recalculating the weight of the butane to make sure the tank was full and im not crazy i can confirm success with the new design!

Time to go get 100 lbs of dry ice and give "Jenny" her sea trials so to speak :)
 

Gray Wolf

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not trying to be rude, a caresaver pump isnt technically oilless so there are contaminants getting into your final product, which for pharm grade extracts isnt good for patients. if you have found a way that the pump wont do that there are many many people that would be thankful for that info.



it most certainly did!! the pressure on the promax output on the beta unit was at about 150, and the unit with the new heat exchanger the promax outlet pressure never went over 70 (except when i forgot a new valve and the pressure got to about 300 and started making noise that informed me something was awry). After recalculating the weight of the butane to make sure the tank was full and im not crazy i can confirm success with the new design!

Time to go get 100 lbs of dry ice and give "Jenny" her sea trials so to speak :)

"Jen-ay" 0005 dressed for the party!
 

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Nemato

New member
"Jen-ay" 0005 dressed for the party!

"DEAR GOD, make me a bird". Jenny is beautiful!

Regarding the hose size on the GAST output manifold...Are the hoses connecting the GAST to the manifold 1/4"? and is the hose connecting the manifold to the 50lb. recovery tank a 1/2"?

again, jenny is a beautiful creature. Congratulations and thank you.
 

Chonkski

Member
"DEAR GOD, make me a bird". Jenny is beautiful!

Regarding the hose size on the GAST output manifold...Are the hoses connecting the GAST to the manifold 1/4"? and is the hose connecting the manifold to the 50lb. recovery tank a 1/2"?

again, jenny is a beautiful creature. Congratulations and thank you.


This is something that still perplexes me, how is it that when sizing 3/8" or 1/2" down, how does it still speed up the rate of flow? How is there less static friction?

I need an epiphany
 

Permacultuure

Member
Veteran
not trying to be rude, a caresaver pump isnt technically oilless so there are contaminants getting into your final product, which for pharm grade extracts isnt good for patients. if you have found a way that the pump wont do that there are many many people that would be thankful for that info.

Much respect due to sneaky! The caresaver is bunk and a waste of money. What GW n sneaky are embarking on will be followed by most serious extractors and I hope to contribute anything I can.

No disrespect brother sneak! Much love to you and your progression!! Keep it up!
 
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