How far are you from Ceres? A quick google found an Airgas...
Airgas
1301 Rockefeller Dr # A
Ceres, CA 95307-5050
(209) 538-6821
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How far are you from Ceres? A quick google found an Airgas...
Airgas
1301 Rockefeller Dr # A
Ceres, CA 95307-5050
(209) 538-6821
Thanks i might just do that since its like 15-20mins if i go all freewayQuote:
Originally Posted by sno.lcn
will give them a call on monday morning
1 more question
what size dewar would i need if i want to bench for 1-2hrs?
Depends on what CPU/VGA You want to cool. But 5L to be sure. Tho, these 5-10L dewars are usually not so good as 15-20L. If You find a good 20L dewar, it would be a good staring point. Good dewar has little LN2 loss and You can have another run weeks after You fill it up.Quote:
Originally Posted by Assassin48
Around how much would a good 15-20l dewar cost?Quote:
Originally Posted by ceemic
what should I look for in a dewar?
Assassin48, I have no idea about prices there in US. I got one very good 20L for some beers. And two 20L for ~75$. Two of them holds LN2 over month. Tho, they are old USSR ones, but still good.
If You don't want to buy a dispenser top, then You have to look, if it's easy to pour LN2. It has to be light also. I have seen 30L steel dewars and they have extreme weight :D
The "mouth" of dewar shouldn't be too big and not too thin also. Normal dewars have ~2-4'' diameter mouth.
what you think of this one?
it doesnt have the dispenser
its going for $225 shipped
http://www.overclock.net/gallery/dat.../dewartube.jpg
Modesto eh, not to far from me :)Quote:
Originally Posted by Assassin48
Thats a good deal on that Dewar :up:
What do you mean it doesn't have a dispenser ?
suppose he means the pressure valve thingy thing on the top?Quote:
Originally Posted by Buckeye
Dude..... If the guy has a good rep or you can check it out yourself....BUY IT!!! That's a great price just for the withdrawal device alone!!Quote:
Originally Posted by Assassin48
The top partQuote:
Originally Posted by Buckeye
Maybe we can meet up for some extreme overclocking sometime :)
once i get better of course
YupQuote:
Originally Posted by thijs
Just the dewar by itselfQuote:
Originally Posted by Expat GriZ
gr...i hate all of you.Here in Bulgaria is impossible to find a LN2.I mean its only for hospital usage,and nobody sells it :(
Hi,
There is an Airgas right next to me (Airgas West Facility Type(s): Branch
Medical Branch) and I'm planning to do my first LN2 purchase soon.
What should I expect? Are there any requirements (min. amount, special handling permit, etc)?
Can I just arrive there with a dewar and ask them to fill it up?
Can we use conventional thermal bottles to store LN2 for a day?
Thanks!
Anyone? :shrug:Quote:
Originally Posted by Jor3lBR
I suppose you can use conventional thermal bottles for a day, but then for 20/30 liters you'd have to buy 20 / 30 thermal bottles ( we dont have em bigger then 1L, atleast, i havent found em yet ) and they cost quite some aswell. proper 2ndhand dewar on ebay is the best way to go i think.Quote:
Originally Posted by Jor3lBR
Thanks, yeah I got a small cryogenic container (2l) that will do for quick sessions. I have an Airgas 2 miles from my place so it will be easy to get more.Quote:
Originally Posted by thijs
I'm looking for a 10-20l used dewar and a decent Ln2 Cpu_Pot now.
I'm almost set with a bartx 1600g cpupot but can't find any reviews on it.
where can i get ln2 in los angeles;)
and how much?
how much in LA
calm down jar032 :rolleyes:
Aveiro, Portugal bought it for 2,3€/L at university :shakes:
Check online where is your nearest store and called them up:Quote:
Originally Posted by jar032
http://www.google.com/url?q=http://w...K0api6lD7mPKOw
http://www.google.com/url?q=http://w...9fwqI7RfffBHAg
Since most places require you to use a truck to haul the dewar home (i have a van and station wagon), i'm planning on going through a company i used to work with when i did HVAC because they'll drop it off at my house or let me take it home in my van, whereas no one else will do that for me due to insurance reasons. However they are telling me i need some sort of certification on my dewar (i guess aside from DOT) to make sure it's still in proper working order. They also haven't told me where to go to do it. I assumed the gas company would do the testing.. The company that's given me the lowest quote so far (125$ for 80L) looked at pics of my dewar and said it's cool, they just need to hold it for 24 hours to do a cool down (something i thought they only did for LHe, but my dewar has been in storage for at least a year, and still holds some degree of fluid according to meter no biggie) and then i can pick it up the next day full, if i had a truck. Any of you have any idea what they are talking about for certification? Isn't that testing done by suppliers? I have a tank of co2 for my MIG and i can pressure test the thing, though i know it doesn't leak because i can open the discharge valve and hear gas escaping... i guess that doesn't tell me if it can take the 12psi the tank operates at.. Nitrogen would probably be a better alternative for pressure testing though, wouldn't it? Dewar can be seen in my sig.
Mine has a DOT tag on it. I am not sure what they are talking about a cool down, your Dewar is not that much bigger than mine at 50L.Quote:
Originally Posted by lesstutrey
Yes they do cool downs on LHe Dewars but not really necessory on the size Dewars we use.
Reason they might want to do a cool down is so they do not waste so much LN2 to start filling it up, a fair amount can used in this process I guess.
Well they pick it up and return ir for you ?
I know airgas will if you have your own Dewars, the big ones that is.
I guess, worst case, just send it over to me and I will take it off your hands ;)
First, it's either source are small regional (by region i mean northern illinois) places so they probably don't want to lose any more gas than necessary, and probably make sure it holds pressure. I don't know if the other source would want to do that as well.Quote:
Originally Posted by Buckeye
No, they won't drop it to a residential (haven't asked airgas, as they are little bit more than twice as expensive) but you just made me realize hey, i have a commercial address i can get it sent to and then take it home from there, since they will not let me do it without a truck for insurance reasons where as the place i'd have it delivered carries no responsibility for me dying in a freak ln2 leak on the 15 minute ride home. (on a side note when i worked at the tollway an airgas or praxair truck filled with some gas, and it must have a pressure release system incase of emergency, and it was venting, at about the volume (dB) of a commercial jet taking off.:yepp:)
Your dewar might not be that much smaller, but i do recall mine weighing ~270lbs when full of LN2 so even once i get it home getting it out of the vehicle will be fun, and i'm not even sure the proper method of lifting when full, i do recall it saying not to use the handles... i think a ramp still.. Any big guys in chicagoland want to bench with some ln2 and an otternase pot, just gotta help me get the SOB out of a van :rofl:
Despite the really complex manifold on my dewar it does still have a gravity feed port, and it came with a 36" or so hose so if i rent i can transfer pretty easy, can do it with almost no lose if i can find an adapter..
0.9$/L in Hanoi, Vietnam :D
$70 plus tax to fill a 35L dewar. or 2.50 a liter.
McKinney Welding SUpply CO inc.
535 W. 52nd street (bet 10th and 11th ave.) very nice guys and they dont ask any questions. delivery is flat 25.00
NY, NY 10019
USA