I'm trying to switch my intercooler sprayer from NOS to CO2 and the CO2 filling station says they can't fill my bottle (10# NOS w/ NOS valve). I had assumed that the two were interchangeble since NX states that you can use either with their kit.

Does anyone know of an adapter or something I would need to fill a standard nitrous bottle with CO2?

Thanks,
-D

 

mayb they didn't understand what u wanted it for. u could always contact nx.

 

I do quite a bit of welding and might have some background and tips that will help you out.

CO2 is a very common welding gas. It is also used by just about every restaurant in town where it is mixed with the carbonated fountain drinks. In other words, it is out there and can be found in almost any city.

However, almost all commercial gas, oxygen, NOS, argon, helium, CO2, etc., comes from the gas manufacturer and is broken down and filled in standard tank sizes. All of these tank sizes are MUCH larger than the little 10lb'ers they use for NOS in cars. The tanks are also almost always leased so that when a customer requests a refill, the supplier just trades one full beat up cylinder for the empty.

So, whoever you ask to fill your small bottle has to do so outside of they way they normally operate. Most places call this a custom fill and will either tell you that they can't do it for you, or charge you a big premium for their trouble. In my experience, most suppliers don't want the hassel because they have to pull someone aside to take your privately owned tank and reconfigure their fill line to do the job. They have to keep trake of it for you because it's not leased like all of the others, and they have to make sure it's handled and set aside so it doesn't get beat up. In the end they know they are going to make peanutes for their effort. I'm guessing this is why you were given a blow-off answer to your fill request.

So, now that you know, the best bet is to find a smaller sized welding shop and get to know them. It's my experience that these smaller shops are much more likely to do off-size fills if they know you and have a reasonable expectation that you will come back to them for all of your fills. You're still going to pay much more doing your fills this way, which is ok if you don't care or rarely need a re-fill. However......

What I did was lease a standard size tank which I can give back to them and pick up another at the same time because they have them sitting in back already filled. Much better because I hated to wait, sometimes up to a week to have my small tank filled. And yes, I had to wait every time I went in.

Then, I bought a regulator and hose with two male tank ends on it so that I could fill my small tank from my larger. The transfer hoses are expensive, but I would not recommend trying to make up your own as the larger tanks are filled anywhere between 2 and 3,000 psi. Now, I don't worry about running out and have to send away or wait for a refill. I just take it out of my Z and over to my large tank and fill it up. Voila. I also don't pay through the nose for my fills any longer because I'm paying the going rate for a commercial sized tank fill. If you're using a lot of gas, CO2 or NOS, the savings add up quick

Hope this helps