Sportsways navy unit w/ J Valve

[JBarney72]

Looking for some help, if possible. While going thru my late Father-In-Law's belongings for my wife, I ran across his dive equipment. He had several regulators that were well used, but ran across this unit that is in VERY good condition along with his tank that just passed it's first hydro since 1987.

It's a Sportsways Waterlung Stage 1 Navy Unit, with no serial number, says patent pending. Has the built in "J" Valve. Anyone know where I may find a service manual for this reg. I'd like to open it up and inspect with the hopes of diving it once I get new hoses and verify diaphragm integrity. Also, could this be coupled with a modern Stage 2 Reg.?

 

[regulator bj]

First of all welcome,.att drawings which may help.

john

 

[JBarney72]

Thanks for the info John! Looks to be two LP ports and one HP port. There is another next to the HP port that looks like a safety relief?

 

[Diverdon]

Yes, that is a over pressure relief valve. Best leave it in as the second is an upstream regulator. Fun regs to play with and rebuild. Hopefully the seats are OK as they have become hard to find.
Welcome.