Instructables

Regulator for disposable oxygen tanks?

Does anyone know how I can get (or make) one of the regulator / valve things that screws on to a disposable oxygen tank? I would use the regulator from a propane torch but it has to have left hand threads.

All the ones on Google shopping and Ebay cost like $40 and I realy don't want to pay that much, I'm thinking more like $10 or $15.

I could use a Nitrous Oxide dispenser like the ones used for making whipped cream instead if anyone knows how to get or make one for the same price.

fstop754 years ago
William's Brewing $19.99 plus shipping http://www.williamsbrewing.com/OXYGEN_REGULATOR_P700C106.cfm
NachoMahma4 years ago
. You have to use special valves, regulators, and gauges with high-purity Oxygen. Any petroleum-based oils will spontaneously combust in O2.

BOOM!

I think it still needs an ignition souce if it isn't at high pressure.
Jaycub (author)  caarntedd4 years ago
it probably depends on what oil/gas it is.
Any kind of flammable, especially stuff that is pretty easy to set alight such as fuels/oils, in the presence of pure oxygen can go up with as little as a spark. It will burn fiercely until the fuel is spent, and if under pressure will explode with anything from a loud pop, to a life taking blast depending on the amount of fuel and oxygen involved.
I remember someone in my town had a big oxy-acetelane set and somehow it exploded, took out the garage, and made a fireball due to another oxygen tank in the garage. Good thing no one was inside and the garage was not connected to the house.
Yeah, acetylene is particularly dangerous. Mistreatment of the cylinder can be enough to cause problems.
If the cylinder is involved in a road accident while being transported, we establish an exclusion zone, cool it with water and call in the experts for disposal.
If the cylinder has been in a fire situation, we establish an exclusion zone, cool it continuously  with water for 24 hours (fully immersed if possible), and monitor it with a thermal imaging camera. The acetylene decomposes and becomes very unstable, and could explode.
It's scary because the average user doesn't know the dangers.
.  A regulator has high pressure on (at least) one side. Guess it depends on one's definition of "high."
oxygen oil reaction
Jaycub (author)  NachoMahma4 years ago
Ok, well I didn't say anything about mixing petroleum based oils with the oxygen I just asked if you knew where I could get the special left hand threaded regulator for cheap. Thanks for the warning though.
. There's more to an Oxygen regulator than left-handed threads. Most regulators and gauges are assembled using oil. Oxygen regulators and gauges aren't.
Jaycub (author)  NachoMahma4 years ago
Do the same warnings apply to nitrous oxide?
. I dunno. I don't think so, but I've never worked with nitrous piping.
I would agree. Playing with pure oxygen is no time to diy unless you've been here before and still have all your body parts in working order.
Thirded. They cost that much because they're worth that much, because you aren't going to be able to do it safely for less.
Jaycub (author)  orksecurity4 years ago
They are not worth that much in my opinion. It's just a couple specialy shaped pieces of brass with a plastic knob.
Welcome to the real world. Things are priced by what they do, not by what they cost to make. If it isn't worth that much to you, don't buy... but then I recommend you don't play with oxygen. Safety is worth money. $40 is CHEAP.
Jaycub (author)  Re-design4 years ago
I have "played" with pure oxygen before when I was experimenting with hybrid rocket engines. I have one of these valves but it is attatched to the torch it came with and I can't get it off without ruining the torch.
lemonie4 years ago

You don't make these, someone else does. They're not DIY devices.

L
Jaycub (author)  lemonie4 years ago
Well someone made them, so it's possible if you have the right tools. Anyway I said "get (or make)", not just "make."
lemonie Jaycub4 years ago

The place you got your tanks should be able to help you, or a diving-shop.

L
Jaycub (author)  lemonie4 years ago
I buy the tanks at Lowes and they sell torches that have the thing I'm after, but you have to buy the whole $60 set.
lemonie Jaycub4 years ago
Hmm, I'm a bit short on ideas. These things are as you find them, because you have to be careful with oxygen, and they probably need to meet standards & pass tests etc.

L