Look what came! Now what?

Do i just attach and go? What about the small silver spot that look a like an input or output? Can i still use my flashback arrestors? What order do i turn on? Is it the same as turn on my propane at the tank, then oxygen, then open my propane then oxygen at the bench, or does the machine need to warm up first?

I cant believe they gave me 50 off, a free filter, free delivery, AND they overnighted it free!

I found a great youtube with info on getting started for anyone that needs it.

Home depot
3 ft 1/4" clear pvc pipe
Brass barbed nipple, hose nut and bolt

Airgas parts to connect oxygen
Rad 6400 3995
Rad 6400 3987
Rad 6400 3986

Turn on machine w green valve open, open up all the way and wait till it gets to 5lpm, turn on disposable tank, turn off oxygen at hand, then turn on propane at hand, then turn on oxygen at hand.

Turn off propane at hand, turn off propane at tank, turn off machine, let oxygen bleed out, then close it, then turn propane back on to bleed out.

2 Likes

Anyone happen to know where you go When airgas is closed, because home depot is useless for the parts.

1 Like

Why is it that I always need to go to Airgas when they are closed!

1 Like

I ordered all three fittings from their website. $19 including shipping. When searching for part numbers leave out the rad and the spaces.

1 Like

If you turn off the propane before turning off the O2 you will always get a big POP as the flame gets smaller and hotter and then blows out.
The standard practice is to turn off the O2 before turning off the gas. After that you can bleed the lines in whichever way pleases you.

1 Like


I use a flash arrestor / check valve at my propane tank and a cannula valve at the output of the concentrator. You can see the cannula valve at the bottom of the picture.

2 Likes

They often come with just a spline fitting to attach a hose to. Sometimes you will find another type of fitting stored inside the case. My current O2 setup is a spline fitting, so my first transition is a piece of surgical tubing to flahback/check then a Y fitting (I run two torches off the O2 concentrator). Following should be a picture that shows how my setup looks…Rob

Google Photos

2 torches??! I didnt know you could do that. I foubd a glass blower open that dold me the parts. Now i just have to get past my fear of unhooking my oxygen tank lol

So just like the reason i got the concentrator, now im scared to remove my preset regulators from the disposable oxygen tank after being terrified by “what can go wrong” videos and others lol