Invacare Homefill nipple thread size and type

[mamcinty]

Hi,

While I do admire what you guys do, my question is not actually about working with glass.

I have an Invacare Homefill II that I am using for medical oxygen therapy (pulmonary fibrosis). My oxygen company won't give me many of the Invacare tanks (2) that are $200+ to buy outright myself. Regular oxygen tanks without the nipple are dirt cheap so I want to make a homefill to CGA 870 adapter so I can fill them. This is all very easy, expect I haven't been able to figure out yet what the thread is on the homefill quick disconnect nipple. This is partly because I don't have many places to go and try adapters out. I will likely have to order it. I am wanting to go from the quick disconnect to 1/4" or 1/2" NPT.

This is the best information I have found so far:

http://www.talkglass.com/forum/showthread.php?41819-WTB-Homefill-whip


I'm looking for the 9/16 18 thread to 1/4 npt fitting as well. Not having any luck. Everything I find is only rated to 200 psi. Have everything needed except this fitting. Tanks, manifold, hoses. and oxy-con set up and ready to go. Everything works fine,just can't connect the hose to the special nipple that goes into the homefill unit.

Anybody got a clue? I've looked for 2 weeks with no luck.

Do you guys know if this is right? Can you point me to somewhere online that has one?

There is someone here that makes a pigtail to do this and sells them:

http://www.deltaoxygensolutions.com/id97.html

But I am the stubborn type who likes to do things himself and I have a fixed income to boot.

Thanks,

Matt

[mamcinty]

I swear I have looked for this for hours now but I may have just answered my own question.

Is this right?

http://www.hydraulicsdirect.com/6404_boss_p/6404.htm?1=1&CartID=1

I'd rather have it in brass, but is this the right fitting?

[Tekhaus]

That's the correct one to attach to the nipple that came with the machine. It's called a -6 ORB or -6 BOSS fitting, usually used for hydraulics. You want the 3/8" on the ORB side. You will want it oxygen cleaned or get it cleaned. When I built mine, I ordered a stainless version that was pre-cleaned so you should be able to locate one. I also recommend picking up a new o-ring, I believe it's a number 906.

Good luck and be careful with compressed oxygen fittings.

[mamcinty]

Good luck and be careful with compressed oxygen fittings.

"You better believe it Mister." I surely don't need shrapnel coming at 2000 psi in my direction to further complicate Crohn's disease, pulmonary fibrosis, kidney disease, legal blindness, and a bleeding disorder.

Thank you for helping me make this new addition (the need of oxygen) just a little bit more bearable. It really means a lot!

One thing though, do you remember where you got the oxygen cleansed stainless? I have a medical supplier for the rest of the parts so that makes them easier.

[misticglass]

do you need a small bottle for that came with the machines?

This might be what your looking for to connect the nipple from an extra bottle to a high pressure pigtail hose, from there you should be able to peice it together....
http://www.discounthydraulichose.com/product_p/6404.htm edit: oops reread the post you found it. good luck
-m

[mamcinty]

do you need a small bottle for that came with the machines?
I would be interested. Does the bottle still have the nipple? I need to get another one so I don't have to steal one from the bottles I currently have. It will depend on how much you want for it, honestly.



This might be what your looking for to connect the nipple from an extra bottle to a high pressure pigtail hose, from there you should be able to peice it together....
http://www.discounthydraulichose.com/product_p/6404.htm edit: oops reread the post you found it. good luck
-m

It's actually nice to have a second person confirm.

[Tekhaus]

One thing though, do you remember where you got the oxygen cleansed stainless? I have a medical supplier for the rest of the parts so that makes them easier.
Sorry, I should have said I picked it up cleaned not that it was pre-cleaned. A local dive shop got the part, cleaned it, and bagged it for me. They do oxy cleaning for nitrox tanks and parts, so it was not a hassle, they just put it in with their next batch. Some welding shops and hospital suppliers do this too. I didn't find them pre-cleaned on the 'net.

[mamcinty]

Sorry, I should have said I picked it up cleaned not that it was pre-cleaned. A local dive shop got the part, cleaned it, and bagged it for me. They do oxy cleaning for nitrox tanks and parts, so it was not a hassle, they just put it in with their next batch. Some welding shops and hospital suppliers do this too. I didn't find them pre-cleaned on the 'net.

No problem. Thanks for telling me though because I was having issues finding ones that were pre-cleaned. I'll just get SS and get it done myself.

I'm going to reply back with wherever I buy this from so others won't have as much trouble. Best price I have seen for it in stainless is $40 so far.

[PyroChixRock]

I hope you find what you need.

On another note, fuck your oxygen company. I cannot believe you have to go to these lengths to be able to breath a little easier. 'Murica. :wes:

[khan]

You dont have to use stainless.... the only reason to use it is because the oxygen atmosphere is prone to rusting the inside of a normal one. But considering there should never be any moisture in your system rust isnt a concern.
I paid $6 for the ones i use. They have been in use for over a year.
As far a "pre-cleaned"... you can just use acetone to clean it. Lacquer thinner will work as well.

Khan

[mamcinty]

I hope you find what you need.

On another note, fuck your oxygen company. I cannot believe you have to go to these lengths to be able to breath a little easier. 'Murica. :wes:

Yeah, it's amazing what they try to get away with. They really want me to just sit in the house and not do anything. I am 31 and have two kids. I might only have another 3 years to live if I am not fortunate enough to get a lung transplant. Sitting in my house doing nothing is the farthest from what I am going to do. Truly though, it shouldn't matter who or how old you are, you should be offered as much as you need to live your life.

[mamcinty]

You dont have to use stainless.... the only reason to use it is because the oxygen atmosphere is prone to rusting the inside of a normal one. But considering there should never be any moisture in your system rust isnt a concern.
I paid $6 for the ones i use. They have been in use for over a year.
As far a "pre-cleaned"... you can just use acetone to clean it. Lacquer thinner will work as well.

Khan

Thanks for this. We were just discussing why steel was a bad idea but you have a point. I'll have to decide how I feel. I may go with stainless just for the "what if" safety since I have enough problems as it is.

[mamcinty]

I'd like to thank everyone here. You have all contributed to the betterment of my healthcare and daily life in a small way.

Shown below is my working Invacare Homefill to regular oxygen bottle (CGA870) filling pigtail:

63056

Here is a complete list of parts:
Invacare Homefill quick disconnect nipple
6 ORB (O Ring Boss) female to 1/4" NPT male adapter (6404-06-04-SS) (http://shop.hoseandfittings.com/catalog/Fitting/Stainless_Steel/JIC_SAE_Hydraulic/FB-MP/6404-06-04-SS.html) - $26.24
Yoke Connection CGA 870 - $19.98
PTFE Lined Stainless Steel Braided Pigtail 48" 3,000 - $40.36

Thanks again!

Matt