J-valve and DIN connector

[nohappy]

Hi all,

Nowadays, our scuba tanks are using K-valve mostly. However, I'm wondering could I say that there is no J-valve with DIN connector? Only K-valve has DIN & A-clamp difference?

 

[PfcAJ]

XS Scuba PVD Reserve "J" Valve

They exist but I’ve never seen one.

 

[DogDiver]

J valves are museum pieces.

 

[abnfrog]

wow didn't know they ever made a j din

 

[oldschoolto]

J valves are museum pieces.

Doesn't seem like it... If they are still available... Kind of like Conshelf xiv's

Jim...

 

[nohappy]

Thanks guys,
I'm aware that we don't use that anymore, just wonder does it have DIN valve as well.

 

[Bob DBF]

J valves are museum pieces.

Not all of them, I have one on an old steel 72 and another on an LP 95 so I can dive my Nemrod Double Hose.


Bob

 

[jadairiii]

 

[rhwestfall]

IIRC the J-valve is still an OSHA required piece for low visibility non-surface-supplied operations.

 

[tursiops]

IIRC the J-valve is still an OSHA required piece for low visibility non-surface-supplied operations.

From the OSHA standard 29 CFR 1910.424:
A diver-carried reserve breathing gas supply shall be provided for each diver consisting of:
A manual reserve (J valve); or an independent reserve cylinder with a separate regulator or connected to the underwater breathing apparatus.
The valve of the reserve breathing gas supply shall be in the closed position prior to the dive.

NOTE: the above standard is for scuba diving, not surface-supplied or surface-tended, and there is no mention of visibility.