What's new

Haskel pneumatic refrigerant pumps

Gray Wolf

A Posse ad Esse. From Possibility to realization.
Mentor
ICMag Donor
Veteran

Thanks for the post SH! We will take a video camera next time, instead of using a phone.

I also had problems with my camera, namely my batteries died and and bled enough wipe out my peach keen Nikon flash, so I had to rely on the small one on my obsolete D-80 at ISO 1600.

Alas next I found my card corrupted when I got home and tried to down load. I was finally able to do so, with more elaborate efforts, and was disappointed at the quality of the pictures in a dim warehouse. I will Photo Shop them and see what I can salvage when I get time, and share.

Mad Shatter is arguably the most sophisticated Mk V that WolfWurx has put out from a feature stand point, despite not being automated, as it also has the latest trap/drier, and the Haskel is set up selectable between single and double stage.

Mad Shatter also features an old news triple core alcohol/DI heat exchanger, and each side of the Haskel has its separate 3/8" X 20' coil to cool down the pump discharge before passing through the water trap and drier, followed by a pass through another 3/8" X 50' coil prior to enter the storage tank.

Temperature at the discharge to the tank typically read from -15F to 27F, during our distilling off two Lp-5's of 99.5% Instrument grade butane from CT, at the average rate of .36 lbs/min, followed by a cleaning run and a production run, after swapping out the lower tank.

The distillation did produce MO, but in impressively small quantities as viewed through the LED lit sight glass, so we waited to clean it until after the cleaning run, leaving it mixed with oil extracted from the low grade trim we used, in lieu of the spent material we typically use at the pup farm.

It all gets washed out with hot denatured alcohol and discarded, as it also contains the systems oils and manufacturing debris.

There were no issues with running full cycles with the Haskel in single stage, with the heat exchangers, because tank pressure hovered between zero and 5 psi, so the Haskel easily pulled -22" Hg.

It did stall out recovering the butane in the line between its normal discharge and the storage tank, using a valved circuit, which has provisions to pump the recovered butane into a stand by cylinder.

I erroneously didn't put that in an ice bath, and when the Haskel started stalling out, I felt the tank to see if it was warm, and it was beyond warm and ostensibly reaching 200 psi internal pressure, because I had the 4:1 Haskel set at 50 psi.

I iced the Lp-5 I was recovering into, and switched the Haskel to double stage, after which it again steadily pumped away until -22" Hg was reached in the recovered circuit.

As a point of interest, it salvages the butane in the lines, trap/drier, and heat exchanger coils, which is starting to be significant.

Using bushings, two 1/2" 3-way valves, and a jumper hose works slick for switching the Haskel from single to double stage.

Of note, is that I picked 50 psi because that was all I needed to achieve about 60 strokes a minute at the back pressure I had. It is hard to exert more pressure on something that isn't pushing back.

Here is a picture of the first production run of what the proud new owner considered his low grade trim, but which put a smile on his face after I fluffed it up into a light colored cotton candy, after a flawless extraction.

The operation ended up containing extra steps, which included installing the owners new 10 Hp 3ph Chicago Pneumatic screw compressor/refrigerative drier/receiver from Portland Compressor.

It wouldn't turn on after install, so we had to wait for Portland Compressor to open up the next day to get hold of a technician, because there was no "destruction manual" included, only a CD that was hard to read in the field with just a flash light.

Fortunately the technician's suggestion that we check for reverse polarity was a good one, especially after he revealed the location of the reset button, so we could get it to run long enough to check rotation. After reversing the two outside legs, wooooooup, whirrrrrrrrrrrrrrrrrrrr.

Impressively quiet, as compared to the 200 hp jobs I typically installed in new facilities prior to retirement. No problem at all standing next to it while running, and the combination of it and Mad Shatter's Haskel were no where near damaging ranges, though less endearing than the sound of silence long term.
 

Attachments

  • SN-0009 First test run on trim.jpg
    SN-0009 First test run on trim.jpg
    80.3 KB · Views: 35

prune

Active member
Veteran
seems like just yesterday we was all paint pots and palm of the hand temperature sensing...
 

Gray Wolf

A Posse ad Esse. From Possibility to realization.
Mentor
ICMag Donor
Veteran
A thought for your engineers Dave. We used to build a lot of our own equipment, because it did not yet exist, and we built a hydraulic intensifier to put out a 10ksi water stream at 20 gpm, for a water blaster removing ceramic shell from investment castings.

It had 1500 psi input pressure, and when the ball valves shifted at the end of the stroke, it sounded like a 10 gauge going off and shook the room, besides having short life spans between cracked valve blocks.

We switched to a tapered shuttle valve, which seated less abruptly, and not only quieted it down a lot, but it stopped breaking on the quarter hour.

I mention that, because the noisiest thing about the Haskel, are the check valves and while only a steady pecking and not close to damaging levels, are still back ground noise, which has been shown to increase operator fatigue.
 

Tstar

New member
What kind of ventilation/ambient environment does the Haskel require? could it placed in a soundproof box?
 

Permacultuure

Member
Veteran
You can definitely enclose them. You may want to plumb the exhaust out which is fairly uncomplicated. I'm thinking a walk in closet style housing for two
 

Gray Wolf

A Posse ad Esse. From Possibility to realization.
Mentor
ICMag Donor
Veteran
What kind of ventilation/ambient environment does the Haskel require? could it placed in a soundproof box?

The Haskel is extremely tolerant of environment, so could be placed in a sound enclosure. Some air flow would be required to cool the jugs and heads, especially once it starts running under vacuum, with minimal gas flow to cool it.

Most of the noise is check valve noise, but you can also pipe the exhaust elsewhere or use a bigger muffler.
 

Gray Wolf

A Posse ad Esse. From Possibility to realization.
Mentor
ICMag Donor
Veteran
You can definitely enclose them. You may want to plumb the exhaust out which is fairly uncomplicated. I'm thinking a walk in closet style housing for two

Enclosed closets or rooms are how we are handling the noise.

Consider a double offset studded dry wall to tame transmission losses, with a sheet metal skin over the inside dry wall for insertion loss, and fire retarded anechoic foam over the sheet metal for absorption losses to tame the echo.
 

AndyC

New member
Gentlemen,

My name is Andy Christensen, I work for an authorized Haskel Distributor in the Denver, CO area. As you all know, the lead time on these pumps can be somewhat significant. We recently had a customer back out of a purchase, thus I have 1 EXT420 in stock, if you are looking for something "Today" give me a call @ 303-789-4449

Thanks
 

AndyC

New member
Highmark800 - Haskel is in the process of coming out with a Modification Kit that is not yet available. I don't have exact dates, but anticipate around June.
 

Dave at Haskel

Active member
I am using one of your pumps once it gets to around 5 it slots way down I heard there is a mod

Highmark:

I don't understand what you mean it slows down around 5. I thought people quit working at 4:20, so I would expect it to be slow at 5.

Seriously though, if you can confirm what you are referring to, I'll try to help.

Dave
 

Dave at Haskel

Active member
Can you inform me on how to mod the haskell from single to double stage

Highmark:

As Andy said, we are working on a commercial mod to convert the EXT420 (or a 59025) to be switchable between single stage and two stage, but it's not available just yet.

However, there are several readers on the forum that have done their own mods, if you read back through some earlier posts you can see some schematics. Below is a link to a drawing that I uploaded previously that shows one way to plumb a valve into the pump to give you the ability to switch between one and two stage.

Dave

https://www.icmag.com/ic/album.php?albumid=58338&pictureid=1391459
 

Permacultuure

Member
Veteran
Dave I switched the valve setup around like we discussed. Hopefully this setup up to snuff

I believe my previous pictures, weeks ago, weren't correct......although the pump still worked like a beast.
 

Dave at Haskel

Active member
Dave I switched the valve setup around like we discussed. Hopefully this setup up to snuff

I believe my previous pictures, weeks ago, weren't correct......although the pump still worked like a beast.

Permaculture, I forgot to mention, but after we left your place, Joe and I were discussing your setup and we realized that you have two ball valves on that cross-over line. You actually only need one valve on that line, once it's closed at one end or the other, there won't be any flow through the line.

Glad to hear the pump is still working well!!

Thanks for the report.

Dave
 

Gray Wolf

A Posse ad Esse. From Possibility to realization.
Mentor
ICMag Donor
Veteran
Can you inform me on how to mod the haskell from single to double stage

There are three methods posted in the preceeding posts on this thread, Permaculture's solution with two way valves, my solution with three way valves, and Haskels solution with a single two way valve and check valves.

Perma posted a picture of how his works, with testimonials. Here is how mine works, and it's also field tested and works slick.

I have one of the new Haskel's on order, but haven't tried it yet.

PS: The extra two way valve in the picture is a separate circuit for using the Haskel to pump down the system between itself and the recovery tank, and deposit the gas in a separate tank.
 

Attachments

  • Haskel single-double stage 001.jpg
    Haskel single-double stage 001.jpg
    22.2 KB · Views: 34
  • Haskel plumbed selective stage-1-1.jpg
    Haskel plumbed selective stage-1-1.jpg
    53 KB · Views: 36
Last edited:
Top