How Do i know what my tank valve thread size it ?

[fusionr2004]

I have a 4500psi carbon fiber scuba tank from 2002 and was wondering what the valve size was. i sent some pictures if anyone could help. i am looking for a fill station valve for this tank. I am trying to use this scuba tank to fill my pcp air gun. does anyone know what size the valve i will need is? And does anyone have a link or a place to go to buy a fill station valve for this tank. Thanks guys.

 

[Big Tank 58]

I don't think that tank is designed for scuba. I believe its either for mine workers or fire fighters. Weight is not really a consideration for scuba. If your tank is light weight you just need more weight on your belt.

 

[tbone1004]

that's an SCBA tank, not scuba. Carbon fiber tanks are all sorts of bad for scuba diving, plenty of threads to read up on if you search "composite tank" on here.
It is also unlikely that it will not pass hydro with its age due to 15yr service life.

 

[BRT]

He said in his post he was going to use it for his air gun. It doesn't matter that it is not good for scuba. Probably can't be hydro'd though.

 

[-JD-]

I thought all of those composite tanks had a fixed (15 year maybe?) max service life.

 

[tursiops]

According to Grainger:

Added: it look like this particular tank can have its life extended for another 15 years, for $300.
https://www.digitalwavecorp.com/scba-life-extension-1

 

[Scared Silly]

As noted by others carbon fiber cylinders have a 15 year life. Given that it was first tested in 12/02 that means its lifespan ended ~2.5 years ago. So you now have something that is no longer usable. Recycle it, if possible.

 

[tursiops]

As noted by others carbon fiber cylinders have a 15 year life. Given that it was first tested in 12/02 that means its lifespan ended ~2.5 years ago. So you now have something that is longer usable. Recycle it, if possible.

See the addition to my post that you quoted.

 

[Scared Silly]

See the addition to my post that you quoted.

Interesting thanks for that ... I have not known of that program before.

 

[tursiops]

Interesting thanks for that ... I have not known of that program before.

Yeah, it was new to me too. Kinda pricey, but hey!