[Witchdoctor]

Originally Posted by Splave

you cant fix yours?

I may be able to, is there a proceedure? seems like some sort of epoxy or something holding it on ??? would have to withstand some serious cold .... anybody know what they use,

Plus I have to replace the valve as that is why it broke I was trying to open it and the valve is insanly hard to turn.......

At duke

Excuse the language

Wholly Fuck Dude !!!!!

That is crazy, at what I pay it would be $ 575.00 bucks plus what ever the rental would be for the container and I have to think delivery is free when buying that much ....

[MaadDaawg]

Delivery is never free, and the large dewars gas off real quickly.

If you're at all interested in the dewar I have for sale send me a pm and we'll see if we can work something out.

Originally Posted by Witchdoctor

I may be able to, is there a proceedure? seems like some sort of epoxy or something holding it on ??? would have to withstand some serious cold .... anybody know what they use,

Plus I have to replace the valve as that is why it broke I was trying to open it and the valve is insanly hard to turn.......

At duke

Excuse the language

Wholly Fuck Dude !!!!!

That is crazy, at what I pay it would be $ 575.00 bucks plus what ever the rental would be for the container and I have to think delivery is free when buying that much ....

[Witchdoctor]

Originally Posted by MaadDaawg

Delivery is never free, and the large dewars gas off real quickly.

If you're at all interested in the dewar I have for sale send me a pm and we'll see if we can work something out.

LOL ........ if I was getting juice at $ 1.00 a liter I would be all over it Madd .......

the reality is though that at $ 2.25 a liter I simply would not be able to afford to fill that thing up. Then you have transport and weight that would also add to it being impractical for me to go with a 50 Liter

[GFDuke]

Originally Posted by MaadDaawg

Delivery is never free, and the large dewars gas off real quickly.

If you're at all interested in the dewar I have for sale send me a pm and we'll see if we can work something out.

You're too used to Airgas Dewars which in my experience totally suck.

My 230's will last 2 weeks under normal use. The Airgas Dewars would gas off in less than a week.

[Kal-EL]

Originally Posted by GFDuke

You're too used to Airgas Dewars which in my experience totally suck.

My 230's will last 2 weeks under normal use. The Airgas Dewars would gas off in less than a week.

The taylor wharton 35L do well in lasting a few weeks too, no dispenser, just cap.

[Witchdoctor]

How do the capped ones disapate pressure ? and will they fill a passive model up?

I would rather have that as then there is no BS to go wrong with it, just my style simple easy .........

That's me, simple and easy ..........

Edit:

Hers some pics ... the yellow valve wont turn, that is how it broke off

[Neuromancer]

Originally Posted by MaadDaawg

Delivery is never free, and the large dewars gas off real quickly.

Delivery is cheap though, relatively...

As far as Large containers gassing off more quickly I would expect that.

If you look at the size of 20L dewar the device is much larger that the capacity dictates. teh 160L I saw at teh welding supply shop, were NOT 5-6 times larger than my 30L, more like 3-4.

I am assuming that the ratio of insulation to LN2 is much higher on the smaller units.

So if 1.5" insulation on a 20L say, with a 24" diameter, then move up to a 160L and still have 1.5" insulation on a 36" diameter... im no physics expert but would assume that the larger surface allow greater heat transfer to occur and thus would require a larger amount of insulation...

Another consideration is the large dewars require pressure to dispense LN2 since you cant just tip it...

Pressure = agitated molecules = heat. Might be better to have 3 50L dewars laying around and fill the 160L. Should hold the LN2 better and 30L was easy to pour (one hand pour with another holding my coffee mug ) , cant see 50L being too difficult especially if you have a spout.

just gotta remember it shoot out straight at first lol (I wore a glove the first couple of times, but got it figured out after that and poured from dewar too coffee cup with no glove)

I only have had the experience of 1 full dewar I cant wait to do it again though