The search for a proper recovery pump..

[Drunkengrower]

Anyone have any experience with the cm-ep pump? It worked great at first but now it shoots oil out of the outlet contaminating the gas

 

[A6 Grower]

your like the 4th person ive seen this happen too

 

[Drunkengrower]

They have replaced 2 for me already and now told me to get lost. I literally turned it one one time and contaminated 250 bucks worth of tane

 

[Pure777Extracts]

Has anyone used these?

 

[Drunkengrower]

Does that use a compressor? I'm not sure how these oil less pumps work but they look nice

 

[Sunfire]

It's a diaphragm pump so I imagine it's gotta use a compressor, especially considering it can only get to 60 psi

Although the housing looks like there might be a motor coil inside it, interesting...?

 

[Breakover]

That's definitely an electric. Probably modeled after the gast pumps.

 

[Sunfire]

I'm not liking the liter/min rating. Is that gas or vapor? How does that equate to pounds? I don't know the formulas for that conversion. Just a quick thinking in my head, 60 liters a minute of vapor is probably around only 6 cfm?

 

[Drunkengrower]

^^im with you. How long would it take to recover 1lb?

 

[Noir]

I have yet to meet someone in the MMJ industry that has a good understanding of the kind of regulatory and QC hoops that pharma companies have to jump through, most normal people would boggle at how extreme the measures are that they take to insure consumer safety.

Nice to meet you, then, mofeta! This is my first post here, though I have been lurking for some time. Your statement seemed to be a good opportunity for me to introduce myself, since big pharma quality assurance is part of my background; specifically the arduous processes of validating INDs and going from simple USP and cGMP guidelines to "big time" CFR compliance under the FDA.

I have been involved with the ODC for a very long time, as well, albeit by a different handle. I helped foaf behind the scenes to build his "Honey Pot", the very first active butane reclamation BHO system seen online. I realize that may be a rather tall claim, but I can assure you he will know who I am. I've been on hiatus a few years... Now that legality in at least the cannabis arena is gaining momentum, it's good to be back.

 

[snake11]

Nice to meet you, then, mofeta! This is my first post here, though I have been lurking for some time. Your statement seemed to be a good opportunity for me to introduce myself, since big pharma quality assurance is part of my background; specifically the arduous processes of validating INDs and going from simple USP and cGMP guidelines to "big time" CFR compliance under the FDA.

I have been involved with the ODC for a very long time, as well, albeit by a different handle. I helped foaf behind the scenes to build his "Honey Pot", the very first active butane reclamation BHO system seen online. I realize that may be a rather tall claim, but I can assure you he will know who I am. I've been on hiatus a few years... Now that legality in at least the cannabis arena is gaining momentum, it's good to be back.

Welcome!! I look forward to the knowledge you bring to the table!!!

 

[Hydrosun]

I'm not liking the liter/min rating. Is that gas or vapor? How does that equate to pounds? I don't know the formulas for that conversion. Just a quick thinking in my head, 60 liters a minute of vapor is probably around only 6 cfm?

Lets say for sake of arguement that at 300ml can of tane weighs .3333lbs

Then 60,000ml or 60L is 64lbs give or take. So one L is 1.07lbs.

Don't know if their numbers are accurate, but I doubt it.

 

[Gray Wolf]

Does that use a compressor? I'm not sure how these oil less pumps work but they look nice

That is a dual diaphragm pump, driven by a TEFC motor.

60L/min vapor = 3661 cu/in/min

Vapor specific gravity of n-Butane vapor is 2.0859

Sp gr air .0000467 lb/cu/in

3661 X .0000467 X 2.0859=.357 lbs/min

 

[Breakover]

Nice to meet you, then, mofeta! This is my first post here, though I have been lurking for some time. Your statement seemed to be a good opportunity for me to introduce myself, since big pharma quality assurance is part of my background; specifically the arduous processes of validating INDs and going from simple USP and cGMP guidelines to "big time" CFR compliance under the FDA.

I have been involved with the ODC for a very long time, as well, albeit by a different handle. I helped foaf behind the scenes to build his "Honey Pot", the very first active butane reclamation BHO system seen online. I realize that may be a rather tall claim, but I can assure you he will know who I am. I've been on hiatus a few years... Now that legality in at least the cannabis arena is gaining momentum, it's good to be back.

Welcome! Looking forward to your input.

 

[Gray Wolf]

Nice to meet you, then, mofeta! This is my first post here, though I have been lurking for some time. Your statement seemed to be a good opportunity for me to introduce myself, since big pharma quality assurance is part of my background; specifically the arduous processes of validating INDs and going from simple USP and cGMP guidelines to "big time" CFR compliance under the FDA.

I have been involved with the ODC for a very long time, as well, albeit by a different handle. I helped foaf behind the scenes to build his "Honey Pot", the very first active butane reclamation BHO system seen online. I realize that may be a rather tall claim, but I can assure you he will know who I am. I've been on hiatus a few years... Now that legality in at least the cannabis arena is gaining momentum, it's good to be back.

Welcome back to the arena, and this forum!

And Foaf held my hand, so there you have how synergism works at ICM.

Looking forward to your sage input, at this rapidly evolving state of extraction and finishing science!

 

[Hydrosun]

That is a dual diaphragm pump, driven by a TEFC motor.

60L/min vapor = 3661 cu/in/min

Vapor specific gravity of n-Butane vapor is 2.0859

Sp gr air .0000467 lb/cu/in

3661 X .0000467 X 2.0859=.357 lbs/min

This and other formulas and concepts need to be incorporated into my brain.

Perhaps a new thread.... "Math fun for the CLS operator"?

 

[Gray Wolf]

This and other formulas and concepts need to be incorporated into my brain.

Perhaps a new thread.... "Math fun for the CLS operator"?

Good! I share them for two reasons, the first being so that when the tattered old Graywolf is gone, ya'll will be doing the math yourselves and passing it on to others.

The second is so a second set of eyes will spot my misspelled math, or fumble fingers on the keys.

 

[fcjohnny]

I'm sure this may have been answered already but why do some people choose to use the pricey edwards pumps on their ovens instead of the refrigerant style robinair or jb plantinum

 

[Rickys bong]

A little bit of context for that calculation:

That is a dual diaphragm pump, driven by a TEFC motor.
60L/min vapor = 3661 cu/in/min
Vapor specific gravity of n-Butane vapor is 2.0859
Sp gr air .0000467 lb/cu/in
3661 X .0000467 X 2.0859=.357 lbs/min

Correct math, but only valid at atmospheric pressure with no compression ratio. I'm guessing the 60LPM is basic displacement. For comparison the Gast DAA is 108LPM and (from memory) the G5 is almost 28LPM.

A diaphragm pump's compression ratio is going to change with output pressure increase as the diaphragm is going to flex. This will cause the output to degrade faster than a piston pump of equivalent displacement.

Gast gives a graph of pressure to output: http://www.gastmfg.com/support_documents/RTD795rA.pdf

The recovery rate will also depend on the condenser flow and efficiency. A dual diaphragm pump can be run in series to increase the compression ratio.

Actual recovery rate isn't going to be even a fraction of .357lb/min. and it'll vary greatly depending on tank pressure (temp.) and the aftercooler design.

When I first suggested the Gast I meant for it to be used as a booster pump for a piston type recovery pump. To use a diaphragm pump standalone will need a lot more hardware than just a pump.
It will need a very efficient condenser, an unloader for starting and an overpressure switch.

The pump shown on the last page was from KNF: http://www.knf.com/products/process...-pumps-and-compressors/explosion-proof-pumps/

Very nice hardware, but it needs some extra bits to function in a CLS extractor...

RB

 

[Sunfire]

Good! I share them for two reasons, the first being so that when the tattered old Graywolf is gone, ya'll will be doing the math yourselves and passing it on to others.

The second is so a second set of eyes will spot my misspelled math, or fumble fingers on the keys.

...yikes...!

I was thinking what Ricky was in a sense that a diaphragm pump alone wouldn't cut it. Isn't there something with diaphragm pumps where the in and out pressures can only be like a 20 psi difference, which is why you need all the extra goodies.

Good call ricky!