copper pipe work for oxygen

[sasik]

One of my customers (a vet) asked my if I can do some pipe work installation in his practise. He said that the pipe work have to be in 10mm copper and soldered joints. The pipes going to carry the oxygen around the building. He told me that the pipes must stay dust free during the installation!
I would like to know if any of you have any advice about this kind of installation? How do I flush out and clean flux out of the pipes and joints and how much dust free it should be?
Thanks sasik

 

[REDSAW]

no chance.
try using a complete reel of micro onto comp or crimp joints.
or high pressure dry blow out after installation.

got a mate who installs these in hospitals, will see if i can get in touch tommorrow.

 

[stevetheplumber]

seen them putting this stuff in and they silversolder the joints whilst passing what i think is some form of inert gas thrupossibly co2 or may even be argon has to be supper clean capp ends of all pipe at all times with stoppers
id be very wary of doing this if you have no training seeing as it could literally be life threatening if you get it wrong

 

[Bernie2]

Some good info on Yorkshire pipe website Medical Gases and UK copper board
medical Gases.

Its special medical gas copper cleaned in a certain way. The fittings are flux less brazed. There are all kinds of dangers with oxygen if you don't follow procedures. If its supposed to be a cheap job, don't do it, its quite involved by the sound of it.

 

[REDSAW]

have you got a ticket for o2 ?

 

[tsta]

seen them putting this stuff in and they silversolder the joints whilst passing what i think is some form of inert gas thrupossibly co2 or may even be argon has to be supper clean capp ends of all pipe at all times with stoppers
id be very wary of doing this if you have no training seeing as it could literally be life threatening if you get it wrong

Did a bit of Air Con a few years ago and seem to remember the gas we used was Nitrogen. If you don't pass it through the pipe whilst soldering the reaction with Oxygen creates black flakes (looks like burnt newspaper)

 

[sasik]

I didn't know you need a ticket for this one.
Thanks.

Yes, you right. It doesn't sound as straight forward as I thought it is.
Thanks

 

[k13 wjd]

don't do it....

ive seen the first hand effects of what happens when jobs involving oxygen go wrong.

the SLIGHTEST bit of silicone, grease......and you'll have major issues...like BANG.

Oxygen will cause spontanious combustion of grease and oil under pressure. it'll even, under the right conditions, ignite rubber, neoprene, steel.........shall i go on ??

also, if there was EVER a leak, even a small leak....for example a rise in density of O2 in by just 3% ( 24 ) will cause any fire to burn hotter, quicker, and make it harder to put out. go to 40% and it'll be nearing impossible to put out.....

 

[leakylea]

i do know that oxygen pipe work if using yorkshire joints requires silver solder in the solder ring not bog standard

 

[traineedrip]

wouldnt plastic be safer? no copper in my local hospitals theatre or resuss... just colour coded flexable plastic hoses.