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oldschooltofu 2009-06-13 8:42am

problem with EXO2 filling station
 
so i got my filling station in today, my tank is empty and i hooked everything up to fill it all weekend so i have a full tank on monday morning.

well first off....there is no instruction manual.
second off they sent me a jenky plastic hose to connect the concentrator to the filling station that leaked when i soap tested it. so now im starting to get pissed that i spend a lot of money on a piece of equipment and they send me shotty hose and fittings.

so luckly i found a green hose with proper b fittings and hook it up. let everything run for a little while and the yellow light comes on saying O2 too low.

so i soap test all my fittings again and check that everything is running properly. I even try hooking up my huricane and still no luck. then i hooked the concentrator (that came with the filling station) to my torch, and could not get a good flame, kept blowing out the flame. like it as mostly air and not enough oxygen.

so it keeps saying O2 below normal.

does anyone know the problem here?
did i get a bad one?
My 281 K tank is empty, can the filling station fill a tank from empty?

im quite pissed i cant fill my tank this weekend.

Lynn Burgess 2009-06-14 8:35am

I will be interested to hear how this pans out. I too have been looking into this system. I hope you get your problem solved.

Dale M. 2009-06-14 1:44pm

Sound like concentrator is not doing its job...

This system (I believe) is just oxycon tied to RIX compressor... IF you need to know something about the high pressure compressor you can probably do a search for RIX compressor....

And so search for brand and model number for oxycon and maybe between some deep thinking and internet you can get past poor support for system...

Dale

oldschooltofu 2009-06-14 7:11pm

well i tried hooking up my already running good huricane and still says low oxygen

its almost monday now and i guess ill call them first thing, would have been nice to have a full tank waiting for me tomorrow morning

oldschooltofu 2009-06-15 9:41am

so i got a hold of paul from ex o2 after only three phone calls (one to abr)

he said he will replace the hose
so the valve on the oxygen generator is in reverse. its a bleader valve, which means when i had it turned up all the way it was actually sending low or no oxygen out the outlet.

Paul said i have to set it to 2 for the first three minutes, then turn it off to 0, and it started filling.

this could have eaisly been avoided by an instruction sheet (which could have taken 15 min to wright/print up and include in the box) or a page on the webstite.

Paul's excuse is that they changed designs of the concentrator so there are multiple instructions. once again, this could have been an easy one page included with each concentrator/compressor.

im still pissed because my tank is still empty, but at least its working.

oldschooltofu 2009-06-16 10:19am

1500# in about 24 hours

now im going to hook up the new concentrator to my 2 huricanes for extra oxygen, and use the tank for outers.

no more buying oxygen.

Wonker 2009-06-16 10:29am

Interesting. 1500# should run your easily for a day.....work 8 charge the tank for 12 and you're back in business the next day... sweet!

oldschooltofu 2009-06-16 2:59pm

The above number were wrong it was 1500# in 24 hours which is about 62.5# per hour filling up from empty

sorry for the typo

so you can feasable go through 1000# per 8 hour day.

then if you take weekends off you can empty the tank and it will be full by monday morning. so im going to save my heavy O2 days for Friday

oldschooltofu 2009-06-18 9:31am

its filling up to a max of 1800# and saying full

Wonker 2009-06-18 9:35am

I think you might have found a solution to the oxygen woes of the world.

Lynn Burgess 2009-06-19 12:03pm

May I ask what type of torch you are running and how much out of the 8 hours a day do you run the outer flame?
Thanks for all the info so far, it has been very helpful.

oldschooltofu 2009-06-19 8:19pm

im running a delta mag

my helpers are running a lynx and a mirage on the same system, but i think i have enough to upgrade the lynx to a phantom.

the three centerfires are on two huricanes which is great. the generator that came with the filling station is tied in when its not filling the k-tank. i think we may just need one huricane with the generator that came with the filling station for the 3 centerfires.

we use the centerfire 90% with the outer green cracked, so we are not using much.

im getting into doing bigger projects, its really nice to have unlimited oxygen

Lynn Burgess 2009-06-22 12:51am

Thanks again for the info. It almost sounds to good to be true. I am trying to put the money together to get one purchased. I will be watching this thread for any further updates.

Lynn

oldschooltofu 2009-06-23 6:48pm

update

still haven't received my replacement hose since the one that came with the machine leaked like a sieve.

the pressure gauge on the machine is about 600# off of what my regulator says. which isnt a huge problem, but would have been nice to know its not accurate. and given the price of these things, everything should work perfectly. and 600# is a big difference

the machine doesnt shut off when full. it stops filling but the machine is still on and the generator is still running. im going to call exo2 about this tomorrow. when i bought it they said it would shut down everything when full, hense saving electricty.

Dale M. 2009-06-24 7:32am

Sounds like the were a little premature about getting their product out the door....

Dale

oldschooltofu 2009-06-24 10:27am

so i called them today

no way to have the generator shut off automatically...which was a feature i was told it had. the compressor stops pumping, but the generator stays on.

he said the pressure gauge is prob not calibrated properly, which im kind of upset about on a machine that costs so much.

the machine came with a hand crank to attach to the cylinder, well i had to replace that with a nut that takes a wrench

yes they need to do more testing and iron out the bugs

the big thing is i hear of cheaper filling stations are on the horizon...makes me wish i didnt purchase this one.

Dale M. 2009-06-24 6:11pm

You could probably add a auxiliary relay slaved to Rix Compressor.... Aux relay would control oxycon... When pressure is "low" and compressor is supposed to run it also turns on power to oxycon through the aux relay slaved to RIX compressor (pressure switch ???).... Compressor on- oxycon on- compressor off -oxycon off....

Like I said.... Its a work in progress not a fully developed product and you are a test case....

Dale

oldschooltofu 2009-06-25 9:33am

it filled up 1000# last night

oldschooltofu 2009-06-29 9:32am

the great thing is we have 2500# of pressure on monday mornings

more than i expected

oldschooltofu 2009-07-09 9:48am

just wanted to update
its working great now that the hoses/connections have been replaced.

getting about 900-1000# of pressure overnight. we turn it on at 4ish pm and work at 8am...so 8 hours of work time on the outers of 2 mirages (centerfires are on generators)

getting good purity too.

Lynn Burgess 2009-07-09 10:13pm

Great to know. Thanks for the update!

KG Richard 2009-07-10 5:01pm

Can I ask how much you paid for the system? Would you recommend it to someone that has a Cuda and concentrators? Thanks!

Dale M. 2009-07-10 6:37pm

If you already have concentrators, the major component you need is a RIX (oil free) type of compressor capable of about 2200 2500 psi and you pretty much have same as the EX02 system.... Also you will a oxygen tank as storage vessel....

There was a couple of threads "brainstorming" how to DIY your own "system". A search mat turn them up...

Dale

squid 2009-07-10 7:00pm

So it has to be oil free? Is there any way to use an oiled one to work with a system like this?

Dale M. 2009-07-11 6:45am

Quote:

Originally Posted by squid (Post 2570302)
So it has to be oil free? Is there any way to use an oiled one to work with a system like this?

NO!!!..... Oil and pure oxygen are an EXPLOSIVE mix .... Use a compressor that has oil in it and you are building a BOMB!.... And as oxygen pressure increases, the more dangerous the combination becomes....

Do the research ..... There is lots of data out there....

Dale

squid 2009-07-11 8:20am

Quote:

Originally Posted by Dale M. (Post 2570629)
NO!!!..... Oil and pure oxygen are an EXPLOSIVE mix .... Use a compressor that has oil in it and you are building a BOMB!.... And as oxygen pressure increases, the more dangerous the combination becomes....

Do the research ..... There is lots of data out there....

Dale

I figured as much - that's a shame as I have a lovely oil using compressor.

metalbone 2009-07-11 8:36am

Quote:

Originally Posted by oldschooltofu (Post 2534807)
so i got my filling station in today, my tank is empty and i hooked everything up to fill it all weekend so i have a full tank on monday morning.

well first off....there is no instruction manual.
second off they sent me a jenky plastic hose to connect the concentrator to the filling station that leaked when i soap tested it. so now im starting to get pissed that i spend a lot of money on a piece of equipment and they send me shotty hose and fittings.

so luckly i found a green hose with proper b fittings and hook it up. let everything run for a little while and the yellow light comes on saying O2 too low.

so i soap test all my fittings again and check that everything is running properly. I even try hooking up my huricane and still no luck. then i hooked the concentrator (that came with the filling station) to my torch, and could not get a good flame, kept blowing out the flame. like it as mostly air and not enough oxygen.

so it keeps saying O2 below normal.

does anyone know the problem here?
did i get a bad one?
My 281 K tank is empty, can the filling station fill a tank from empty?

im quite pissed i cant fill my tank this weekend.

OK, here is the issue with your system. The compressor is indicating low oxygen purity. The compressor is really just a converted Homefill II medical compressor (you should look at the posted system I pieced together using the Homefill II on the Homemade Equipment thread, including a schematic and cost), and this compressor tests the purity of the incoming oxygen. If the purity is less than 90%, you get the message and the compresor does not work.

The solution is to get a new oxycon or get new zeolite cartridges for the oxycon such that your purity exceeds 90%.

On my system, I initially had the same problem using devilbiss machines, so I used Invacare Plantium oxycons, which solved the problem. I then upgraded the zeolite on the devlibiss machines and that also solved the problem.

Try turning the output volume on your oxycon to a lower level and let it run for 1/2 hour before turning the compressor on...this is what invacare recommends for their Homefills. Then after the compressor starts filling your tank (after 3 minutes from turning it on), you can incrementally increase the LPMs to get to an acceptable tank fill time.

As an FYI, when I first set my system up, it took over 47 hours for a tank fill,so i don't see how they can advertise the EX to fill a K in 24-36 hours. I had to add a 2nd compressor to get the fill times to the 21 hour range.

In anycase, try letting the oxycon run for 1/2 hour to normalize the O2 purity, then turn the compressor on, and please report back on your progress.

Also, feel free to email me if you have other Qs.

metalbone 2009-07-11 8:41am

Oldschool, I've seen you on gldg...go there and search for "Homefill Conversion" in setting up shop...I posted a lot more info there, including documentation of tank fill times, a description of how the compressor operates, and a schematic of the bleedoff system to keep the oxycon alarm from sounding if the compressor shuts off for any reason (and to accommodate the lag between when the compressor is turned on and when the compressor motor actually starts).

metalbone 2009-07-11 8:47am

Sorry, I posted the above without reading the complete thread...glad to hear it is working fine.

metalbone 2009-07-12 12:26am

Quote:

Originally Posted by Dale M. (Post 2570280)
If you already have concentrators, the major component you need is a RIX (oil free) type of compressor capable of about 2200 2500 psi and you pretty much have same as the EX02 system.... Also you will a oxygen tank as storage vessel....

There was a couple of threads "brainstorming" how to DIY your own "system". A search mat turn them up...

Dale

Hi Dale, the Rix has 1 problem for sure and possibly another. The for-sure problem is the price, $5000+ for the Rix Microboost is prohibitive. Plus Ro had hers breakdown recently after about 150 fills.

I think the best bang for buck option right now is to get a couple of used Homefill II units and break out the tool box. At $450 to 650 a pop, it currently offers the best bag for buck as far as a tank fill system is concerned. I posted some pix, schematic, and parts list (in this sites Homemade Equipment thread) to show that is really is an easy and relatively cheap system that many can put together themselves and save a bundle.

I am definitely looking forward to checking out the wonka system if and when it ever makes it debut. I sure hope the fill times of that system (I heard 8 hours for a K) and the cost of the system lives up to their billing (I would hope that substantially less than other fill systems means it will cost only $1K-$2k, or less).

Dale M. 2009-07-12 5:37am

The only reason I mention the RIX is because it is closer to working "out of the box" than having to "kludge" together a system such as mangling the "home fill" units.... Do not misunderstand, I am a great on one for making "something work", but that route is not always the best way for people to go..... Some people are not aware of the dangers of high pressure gasses and plumbing and could get into trouble very easily and cause themselves injury or death and I don't think I want to hear that somebody got hurt of killed trying to make something without having proper knowledge of processes and dangers that are involved....

And Yes I agree there needs a to be a roll it in, remove the crate, connect the tank, and turn it on system for high pressure oxygen....But system needs to be well documented and all bases covered before it goes "public".... The problems with buying a system as oldschooltofu did and having the problems he has had with the "evidentially a rush to market" by seller is just not acceptable in my book.....

Dale

Trey Cornette 2009-07-12 8:50am

I have built a system that utilizes 2 M-20 concentrators, a laboratory vacuum compressor and a 29 gallon holding tank. I compress the o2 up to 100psi. The system shuts off at 100 psi and turns on at 80 psi. This system lets me run a Phantom or a Barracuda at 100% for well over 2 hours at full blast!. Thatís plenty of time to complete most projects. On a full day of work I have never run out of O2 as I rarely utilized 100% output for extended periods. Usually a project is broken up into periods of variable amounts of O2 use so when I am doing detail work with a small flame the system is building back up to 100% and shutting off.

Why deal with going to Tank pressures of 2000psi + when 100psi will do.
I have purposely not published how to build this system due to liability issues and the dangers of mixing high pressure O2 and oil.
For those interested a large glass tool and supply company is currently working with this design to test the feasibility of creating it for the market. If all hold true to projections I would expect to see them on the market within a year.

I have been running this unit since January and it seems to be holding up well. I canít wait to score a Mirage and see how it performs with it.

metalbone 2009-07-12 11:59am

Quote:

Originally Posted by Trey Cornette (Post 2571761)
I have built a system that utilizes 2 M-20 concentrators, a laboratory vacuum compressor and a 29 gallon holding tank. I compress the o2 up to 100psi. The system shuts off at 100 psi and turns on at 80 psi. This system lets me run a Phantom or a Barracuda at 100% for well over 2 hours at full blast!. Thatís plenty of time to complete most projects. On a full day of work I have never run out of O2 as I rarely utilized 100% output for extended periods. Usually a project is broken up into periods of variable amounts of O2 use so when I am doing detail work with a small flame the system is building back up to 100% and shutting off.

Why deal with going to Tank pressures of 2000psi + when 100psi will do.
I have purposely not published how to build this system due to liability issues and the dangers of mixing high pressure O2 and oil.
For those interested a large glass tool and supply company is currently working with this design to test the feasibility of creating it for the market. If all hold true to projections I would expect to see them on the market within a year.

I have been running this unit since January and it seems to be holding up well. I canít wait to score a Mirage and see how it performs with it.

Sounds good. I've been toying with a system (in my mind) similar to your 80-100 psi system with either a 30 or 60 gallon holding tank. At some point, I may put it together and post info and parts list on it just for the heck of it.

Personally, I'd rather listen to music than noise, so I don't mind filling a couple of K tanks during the off hour. If I don't have to have compressor noise while working, I will go that route, even if it means tank filling during the off hour (I stay in the approximate range of 400-1100 psi). But, I agree, lower PSI is safer than higher.

BTW, what is your holding tank's charge-up time to 100 psi?

Also, we are looking forward to hearing how the mirage performs on your system...perhaps it may need an upgrade to a 60 gallon holding tank to be optimized?

Dale, a system based on the Rix is also a kludge system. With a Rix, you still have to get all sorts of fittings, hoses, and the like. It's just that someone else does the kludging. With a Homefilll conversion, it's the same, except you do one more kludge and modify the output to take a high pressure hose. I have an industrial hose house fabricate that part for me. All other partws are rated of 3000 psi or higher.

Any off-the-shelf tank-fill system is essentially a refined kludge so to speak...someone put something together, worked out bugs, tweaked this and that, and then felt like they had the risk manageable. Then off to market is was (or in the case of the system this major glass mfgr...off to market within a year).

But I agree, for an off-the-shelf tank fill system to come without any assemby or operational documentation, and no warning information is wrong...sometimes people are too rushed to make a buck to do it right, imo.

Trey Cornette 2009-07-12 1:04pm

The system is really not so loud. I demoed it at an event in Asheville a few months back. I was able to do a full demo of one of my pieces with 15 onlookers and everyone could hear me. In the studio I have it in a separate room. Given the option that's where I would keep any equipment with sound issues.
Right now it is taking about 25 minutes to fill the tank from empty. I rarely do that as the tank is always left full. I just shut it off at the regulator at the end of each session.
There are a couple of ways to upgrade the system to fit the users needs. A bigger holding tank will increase storage. You can add more O2 flow which may create a need to go up in size with the compressor. Say if I had 2 Hurricaines I would want a compressor that will handle that volume of air flow.
The compressor I am using is the least powerful in is line and there are several models that will handle a lot more air flow.
I am super impressed with how it is working.
It has really changed how I think about O2.

metalbone 2009-07-14 7:05am

Excellent, thanks for the great info and opinion of a O2 booster system...the good thing about such a system is that is would be relatively inexpensive and could utilize existing oxycons that many folks here already own. And if it is quiet, all the better.

oxydoc 2009-07-15 2:59pm

Quote:

Originally Posted by Trey Cornette (Post 2571761)
I have built a system that utilizes 2 M-20 concentrators, a laboratory vacuum compressor and a 29 gallon holding tank. I compress the o2 up to 100psi. The system shuts off at 100 psi and turns on at 80 psi. This system lets me run a Phantom or a Barracuda at 100% for well over 2 hours at full blast!. Thatís plenty of time to complete most projects. On a full day of work I have never run out of O2 as I rarely utilized 100% output for extended periods. Usually a project is broken up into periods of variable amounts of O2 use so when I am doing detail work with a small flame the system is building back up to 100% and shutting off.

Why deal with going to Tank pressures of 2000psi + when 100psi will do.
I have purposely not published how to build this system due to liability issues and the dangers of mixing high pressure O2 and oil.
For those interested a large glass tool and supply company is currently working with this design to test the feasibility of creating it for the market. If all hold true to projections I would expect to see them on the market within a year.

I have been running this unit since January and it seems to be holding up well. I canít wait to score a Mirage and see how it performs with it.

I agree with Trey, Why deal with the dangerous 2000+ psi from a system that is questionable at best, when all you need is 100 to 140 psi to run anything in the torch world. With a concentrator that was designed to run 24/7 right from the get go. The Home fill system was designed to fill small tanks like E cylinders and Ds. Noone knows if these things are safe for K tanks. Then you have that ugly fact that if something does go wrong, Who will rebuild it? You can buy the Homefill units all day from HomeHealth Care Companies for 700.00 to 1200.00. Take out the quick connect, go the Lowes for some brass and poof you have a 4000.00 machine. Rix may be more expensive but, they have 60 years of experience not just a few months. A lot of thought and testing went into the unit that Trey is using. And it will run forever. No need to lay awake at night wondering which part of your house will disappear off the map if something goes wrong. Good luck with it Trey

Lynn Burgess 2009-07-15 7:51pm

Jack, could you possibly tell us more about the new system you have in the works? Like when will it be for sale and approx. how much will it be. I have a Mirage I am dying to hook up.

Lynn

metalbone 2009-07-15 11:45pm

QUOTE from Oxydoc: "I agree with Trey, Why deal with the dangerous 2000+ psi from a system that is questionable at best, when all you need is 100 to 140 psi to run anything in the torch world. With a concentrator that was designed to run 24/7 right from the get go. The Home fill system was designed to fill small tanks like E cylinders and Ds. Noone knows if these things are safe for K tanks. Then you have that ugly fact that if something does go wrong, Who will rebuild it? You can buy the Homefill units all day from HomeHealth Care Companies for 700.00 to 1200.00. Take out the quick connect, go the Lowes for some brass and poof you have a 4000.00 machine. Rix may be more expensive but, they have 60 years of experience not just a few months. A lot of thought and testing went into the unit that Trey is using. And it will run forever. No need to lay awake at night wondering which part of your house will disappear off the map if something goes wrong. Good luck with it Trey"

Like I said earlier, I think Trey's system is great.

But your posts raises a lot of questions in my mind...

Everyone that runs a K tank deals with 2000 psi, so if done correctly, 2000 psi is safe. Personally, I don't care if Rix has 60 years of experience, Ro's microboost went out after less than 150 fills. At at $5k a pop for the microboost, her experience with the Rix for filling K tanks weighs more than their number of year in business. For that price, I can get over 10 Homefills, each with a rated lifecycle of 5000 hours, making it not a big deal if one breaks because I can pitch it and use another, and still be far ahead in terms of cost savings, and number of fills. You may want to check out smutboys post on gldg, he is of the opinion that the design of the Homefill is more efficient than that of the Rix.

In anycase, I am keeping records of the number of fills I get and will periodically post this in the gldg thread that documents the 2 compressor $2200 system. Maybe it will turn out to be a long lasting system, and maybe it won't...but I will be basing it on real data, not opinion, and definitely not out of fear that my part of my house will dissapear off the map (where the heck did this come from??).

After undertanding how Trey's system is working and having an idea of how much these types of compressors cost and the plumbng costs involved, I think it is a great idea, has a lot of utility, and should be very very cost effective. Hopefully it gets released soon.

So I've seen numerous posts indicating that its in the works and I see all these questions asking when it will be released.

I, like others, would like to know what's the ETA? What is the range of costs? And what company will be selling it?? Inquiring minds want to know...

BTW, when you say take a $700-1200 Homefill, add a quick connect and brass, and you have a $4000 machine, do you mean that the $4000 tank fill systems (24-36 hour fill times for a K tank) being sold by some resellers and oxygen companies, are really just worth 700-1200 dollars plus the cost of the connections? Personally, I've already come to a similar conclusion. But its nice for it to publically come from someone that knows the oxygen business.

Also, when is the Wonka system that will fill a K tank (presumably to 2000+ psi) in less than 8 hours and that will be more affordable than any other system going to come out? And how much will that cost?

And when you say "Why deal with the dangerous 2000+ psi from a system that is questionable at best, when all you need is 100 to 140 psi to run anything in the torch world", are you saying that when the major glass manufacturer starts selling the 100 PSI sytem like Trey's, that there will then be no valid reason to purchase the Wonka System because its better to deal with 100 PSI rather than 2000 PSI?

Anyway, it's late...

oxydoc 2009-07-16 3:57pm

2000 psi
 
Im not saying that it dont work, Oldschool proves that it does. Im saying that it is not worth the price, and the risk. If you trust everyone to chain the K tanks to the wall, hook everything up correctly, keep an eve on pressures, and trust the builder, then you have a system that works for some. Im saying, why worry with filling tanks at all when there are systems that do not require the high psi. The 1st wonka system was going to be a high pressure filling system until Tom and I agreed that the risks was not worth the effort. So, we based our system on a similar system to Trey's. We have a system that runs off of a Hurricane and pumps the pressure up to 140 psi. Endless, UNLIMITED OXYGEN. No need for overnight filling. The system that Tom Doner and I are working on will not run out of 02 while you are working. And hopefully will be considerable less money than the High pressure filling systems. I simply dont believe that enough time and thought has gone in to this system. It would be ok if the price was a little easier to swallow. But at 4000.00, you are still taking a chance on the operation of a system that has not been proven. It is not bashing my competion, it is not that I want to sell more, it is that I see the real advantages of the system like Trey is presenting. The Wonka system will be very similar to his. And by the way, I do have documented stories of people blowing up homes and vehicals and themselves by not taking the necessary precautions when dealing with high pressure o2.

oxydoc 2009-07-16 4:16pm

Quote:

Originally Posted by Lynn Burgess (Post 2577401)
Jack, could you possibly tell us more about the new system you have in the works? Like when will it be for sale and approx. how much will it be. I have a Mirage I am dying to hook up.

Lynn

I have to back with Tom soon. I have all the working components, but there is an issue with a pressure switch that we need to work on. The system will be ran by a Hurricane and pumped up to 140 psi with unlimited oxygen. We hope to have it done soon. Maybe by end of next month.

metalbone 2009-07-16 4:34pm

Rock!

metalbone 2009-07-16 4:41pm

Quote:

Originally Posted by oxydoc (Post 2578656)
Im not saying that it dont work, Oldschool proves that it does. Im saying that it is not worth the price, and the risk. If you trust everyone to chain the K tanks to the wall, hook everything up correctly, keep an eve on pressures, and trust the builder, then you have a system that works for some. Im saying, why worry with filling tanks at all when there are systems that do not require the high psi. The 1st wonka system was going to be a high pressure filling system until Tom and I agreed that the risks was not worth the effort. So, we based our system on a similar system to Trey's. We have a system that runs off of a Hurricane and pumps the pressure up to 140 psi. Endless, UNLIMITED OXYGEN. No need for overnight filling. The system that Tom Doner and I are working on will not run out of 02 while you are working. And hopefully will be considerable less money than the High pressure filling systems. I simply dont believe that enough time and thought has gone in to this system. It would be ok if the price was a little easier to swallow. But at 4000.00, you are still taking a chance on the operation of a system that has not been proven. It is not bashing my competion, it is not that I want to sell more, it is that I see the real advantages of the system like Trey is presenting. The Wonka system will be very similar to his. And by the way, I do have documented stories of people blowing up homes and vehicals and themselves by not taking the necessary precautions when dealing with high pressure o2.

gotcha. I know what I am doing and have spec'd precautions at the appropriate places.

And no way am I paying 4k for a painted homefill form the other guy. My two compressor, two K tank, two oxycon system with all the valving, tubing, all inclusive, cost about $2200. Its a bit steep but much cheaper than a $4k single unit, and most importantly, I am having fun solving oxy problems.

I'll be putting together a system like treys soon, maybe in the next month or three if time permits (all I need is the holding tank and switch, and some doodads) and I will then post all the info.

kbinkster 2009-07-16 5:00pm

The only reason tanks are filled to 2200+ psi is space. This is so a small vessel can hold a large volume of oxygen - something to consider when you need to transport the vessel around, which is not usually a requirement for most studios. If you can have a larger storage tank, then you don't need to compress the oxygen as much.

Torches generally do not require very high pressures to run them. When you set high pressures on a tank regulator, all that is doing is keeping the regulator open enough to pass the volume needed for the torch. You need a certain amount of push to get the oxygen to all the jets and push through the restrictions along the way, but that threshold is not very high. You can run a Mirage, for instance, to about 95% of full capacity with the line pressure reading 13-14 psi, provided you have enough flow.

Trey's system and Jack's/Tom's system and some of the other systems coming to market soon would be a lot safer, in my opinion, than a system that takes the pressure up to anything over about 300 psi. That's the magic number where dangerous things can happen unexpectedly.

I might even suggest to Ryan that if he could use his set-up with a larger holding tank and fill it to a lower psi, instead of using the K tanks - that would be safer than what he is set up to do now.

Oh, and no matter what... the oxygen that you get out of these tank fill set-ups is only going to be as pure as the concentrator that feeds them can put out. If you have to lower the LPM on your machine to get better purity, it might take longer to fill the tank, but you will get more heat.

oxydoc 2009-07-16 5:00pm

Very COOL, I will be looking forward to hearing from you. Your system does sound interesting.

Trey Cornette 2009-07-17 4:51pm

Hey,
Just so everyone knows. This is not "My System".
There is nothing new about the idea. There have been several people who have built their own before me. I was given the info to build it buy a well respected tool maker and built one. It worked so well that I passed this info along to a couple of people I thought could run with it. All I want is for this system to make it to production with a manufacturer who will do the necessary research to make it safe, provide good customer service, and stand behind a quality product.
It looks like there will be a choice of companies to purchase this product from and that works even better for me. Competition has always resulted in the consumer getting a better product at a cheaper price.
What Kim says about purity is right on the mark. There is a difference between this quality O2 and tanked. I am guessing my O2 is about 93% and works fine most of the time. On a few of the silver based colors I really have to push it to keep the colors from reducing before I am ready.
Other than that I am really happy with how the system works. I can do everything I do without running out of O2. That includes my explorations into Goblets and up to 2 inch marbles in Boro and soft glass on a Phantom or Barracuda. I see no problems running larger torches. It may require a more powerful compressor and a larger holding tank but I am sure it can be done.

Peace,

Trey


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