Old First Stage ID Question

[ECHIV]

I am trying to identify a first stage from US Divers. It says ED3536 on the body. Any assistance would be appreciated. Are parts still available? Is it worth rebuilding? Photo attached.

 

[scrane]

I'm sure someone could figure it out from this picture, but many will need to see the whole thing.

 

[rhwestfall]

Awful picture, but I'm wagering a Calypso as I see ambient ports so I don't think Conshelf... Thing is the Calypso has "rings" on the ambient chamber... You sure it is a USD, and not a knock-off?

 

[ECHIV]

Here are some better pictures (or at least more pictures). The second stage is an Aquarius if that helps with the identification.

 

[rhwestfall]

Your second stage gave you the answer... later model Aquarius...

 

[lexvil]

Aquarius, the USD equivalent to the MK 2

 

[ECHIV]

Are parts available? I understand aqualung bought them out.

 

[lexvil]

Are parts available? I understand aqualung bought them out.

Not much chance but they are pretty bullet proof, not real good on higher pressure tanks, the come from the 2250 psi era.

 

[scrane]

Your second stage gave you the answer... later model Aquarius...

Do you have any references for this model? I can’t find anything. Looks like it has a 3000 psi non integrated yoke. And 4 LP ports? No external IP adjustment? And a separate piston chamber. If it is an Aquarius it's a wild departure.

 

[rhwestfall]

nope