Discussion scba adapter not fitting CGA 346 to cga 580

[Nocturna666]

What you see in the photo is a CGA 346 adapter that connects the hose (Scott e z flo) to a cga 580 tank. Connected would be a Scott mask. It has the same requirements as needed for US measurements but won't fit. Can someone let me know what the hell I'm doing wrong here? :/

 

[devils~advocate]

Could you post a photo(s) of the entire system.......pressure regulator, ldv, etc.
The adapter would go between the pressure reducer regulator and the cylinder tank.

This is what I found for the Scott scba system, it has a pressure reducer stage.....I think it is cga-346.

The short threaded part of the brass adapter would connect to it.

The cylinder (inert gas) is cga-580 threads....which the other end of the adapter would fit into that.

 

[Nocturna666]

Could you post a photo(s) of the entire system.......pressure regulator, ldv, etc.
The adapter would go between the pressure reducer regulator and the cylinder tank.

This is what I found for the Scott scba system, it has a pressure reducer stage.....I think it is cga-346.

The short threaded part of the brass adapter would connect to it.

The cylinder (inert gas) is cga-580 threads....which the other end of the adapter would fit into that.

View attachment 196253

Firstly, thank you for taking the time to answer this. when I posted I was not aware you needed a first stage pressure reducer to connect to the regulator. This led to me trying to attach the second stage regulator to the adapter. Obviously it didn't fit. Waiting currently on the proper part to arrive for assemblage being the 2216 psi variety.

 

[devils~advocate]

Firstly, thank you for taking the time to answer this. when I posted I was not aware you needed a first stage pressure reducer to connect to the regulator. This led to me trying to attach the second stage regulator to the adapter. Obviously it didn't fit. Waiting currently on the proper part to arrive for assemblage being the 2216 psi variety.

Sorry my confusion, I remembered after posting that you had mentioned a pressure reducer in another post.
But I think the important factor is that you are showing that other manuf scba systems work as well. They all use the same common threaded connection.