What is the chepest way to get welding o2?

What sizes is it sold in? and how does cylinder rental etc work?

Pete wrote:

> What is the chepest way to get welding o2?
>
> What sizes is it sold in? and how does cylinder rental etc work?


just go to a grow shop, ffs :-)

"Pete"  wrote in message 
news:YW%Se.1429$2n6.1114@fe3.news.blueyonder.co.uk...

> What is the chepest way to get welding o2?
>
> What sizes is it sold in? and how does cylinder rental etc work?


get a bottle from a scrap yard and get them to refill it, rental is 
seriously dear.

mrcheerful

On Mon, 05 Sep 2005 21:03:34 GMT, "mrcheerful
.."  wrote:


>get a bottle from a scrap yard and get them to refill it, 


How ?   BOC and friends are _incredibly_ fussy about paperwork before
they'll refill a "foreign" bottle.

Don't ever be tempted to refill your own oxygen bottles either. This is
_very_ dangerous.

On Mon, 05 Sep 2005 23:12:16 +0100, Andy Dingley  wrote:


>On Mon, 05 Sep 2005 21:03:34 GMT, "mrcheerful
>."  wrote:
>
>>get a bottle from a scrap yard and get them to refill it, 
>
>How ?   BOC and friends are _incredibly_ fussy about paperwork before
>they'll refill a "foreign" bottle.
>
>Don't ever be tempted to refill your own oxygen bottles either. This is
>_very_ dangerous.


Especially with oxygen as opposed to other gases, as traces of oil/grease can spontaneously combust
under pressurised O2

On Mon, 05 Sep 2005 22:54:37 GMT, Mike Harrison 
wrote:


>>Don't ever be tempted to refill your own oxygen bottles either. This is
>>_very_ dangerous.
>
>Especially with oxygen as opposed to other gases, as traces of oil/grease can spontaneously combust
>under pressurised O2


That's not what I was thinking of. I was thinking more of the critical
temperature and runaway overheating. This is a big surprise to the
people it kills.

In article , 
dingbat@codesmiths.com says...

> On Mon, 05 Sep 2005 21:03:34 GMT, "mrcheerful
> ."  wrote:
> 
> >get a bottle from a scrap yard and get them to refill it, 
> 
> How ?   BOC and friends are _incredibly_ fussy about paperwork before
> they'll refill a "foreign" bottle.
> 

It used to be that they didn't really keep track of bottles, so if you 
could pick one up from an unofficial source you could swap it for a full 
one from someone with an account, and only pay for the gas.  I believe 
they now have systems that track each bottle, so anyone returning a 
bottle that wasn't issued to him is going to have a problem with his 
account (but that's just hearsay - I haven't dealt with them in quite a 
few years).

"Rob Morley"  wrote in message 
news:MPG.1d86f28d453fbfa2989764@news.individual.net...

> In article ,
> dingbat@codesmiths.com says...
>> On Mon, 05 Sep 2005 21:03:34 GMT, "mrcheerful
>> ."  wrote:
>>
>> >get a bottle from a scrap yard and get them to refill it,
>>
>> How ?   BOC and friends are _incredibly_ fussy about paperwork before
>> they'll refill a "foreign" bottle.
>>
> It used to be that they didn't really keep track of bottles, so if you
> could pick one up from an unofficial source you could swap it for a full
> one from someone with an account, and only pay for the gas.  I believe
> they now have systems that track each bottle, so anyone returning a
> bottle that wasn't issued to him is going to have a problem with his
> account (but that's just hearsay - I haven't dealt with them in quite a
> few years).


Although all the bottles are numbered, they don't check that the bottle you 
return is one that you have already been given.  So once you have a bottle 
(not too difficult) just get a scrapyard or blacksmith to get it swapped for 
a full one.

mrcheerful

On Mon, 05 Sep 2005 19:15:20 +0100, Pete  wrote:


> What is the chepest way to get welding o2?


Long term, an oxygen generator.

http://www.ogsi.com/

If you need a lot of it, a LOX silo (ever wondered what those big silos at  
hospital sites inscribed BOC contain?).

The standard economic rules apply. Small quantities cost more. Blue Circle  
regarded my previous company as a small user eligible for a small discuont  
because we were only using abuot 80 tonnes a month.

John Schmitt

-- 
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

"Andy Dingley"  wrote in message 
news:f4oph1p3e7atgcu9luch53324ki5v6jheq@4ax.com...

>
>  This is a big surprise to the
> people it kills.


How do you know?

Will

"Pete"  wrote in message 
news:YW%Se.1429$2n6.1114@fe3.news.blueyonder.co.uk...

> What is the chepest way to get welding o2?
>
> What sizes is it sold in? and how does cylinder rental etc work?
>


I rent an "Argonshield" cylinder from BOC, I think O2 rental is similar 
cost.

The cylinder rental is something like 38 per year, and the gas fill about 
30 ish each time I refill. Cylinder about 3' tall, not sure how much gas it 
holds, but I get about a year per fill!

I have an O2 cylinder which I bought as an outright buy for the cylinder 
from my local welding specialist shop (in Dunstable) and that cost something 
like 150 a few years back and refils are 20 ish I think, but no rental.

Alan.

John Schmitt  wrote:

> On Mon, 05 Sep 2005 19:15:20 +0100, Pete  wrote:
> 
>> What is the chepest way to get welding o2?
> 
> Long term, an oxygen generator.
> 
> http://www.ogsi.com/
> 
> If you need a lot of it, a LOX silo (ever wondered what those big silos at  
> hospital sites inscribed BOC contain?).
> 
> The standard economic rules apply. Small quantities cost more. Blue Circle  
> regarded my previous company as a small user eligible for a small discuont  
> because we were only using abuot 80 tonnes a month.


Do you happen to know how hard it is to buy small (25l dewar refills) of
LOX?
What sort of paperwork on the dewar is likely to be required?

On Tue, 06 Sep 2005 16:01:48 +0100, Ian Stirling   
wrote:



> Do you happen to know how hard it is to buy small (25l dewar refills) of
> LOX?
> What sort of paperwork on the dewar is likely to be required?


Commercial or personal? Personal is about impossible, commercial normally  
carries a monthly charge and a per-litre price. If you get the dewar from  
BOC, it will have all the paperwork sorted, with a three-yearly (more  
dough) inspection and re-certification. You will also have to satisfy BOC  
that it will be properly stored. A small roofed and lockable outbuilding  
with mesh door or walls should suffice. You can get a rep to call by for  
an informal chat.

John Schmitt

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