Max depth for unbalanced regs???

[SeaHound]

Just wondering at what depth / tank pressure would you notice a significant breathing resistance with an unbalanced reg?

Thanks in advance.

 

[Nemrod]

I don't track all this plastic crap they make nowadays but name me an example of an unbalanced regulator--made today. N

 

[leapfrog]

What is an unbalanced reg?

 

[spectrum]

I'm sure it will vary across models and divers.

When my wife's Sherwood Blizzard dry bleed plugged rendering it unbalanced she knew something was wrong at about 90 feet. [edit]... The depth compensation was inoperative.

Pete

 

[Splitlip]

SP MK2 r-190 is unbalanced 1st and second as an example. The functioning depth is a function of remaining pressure in the tank.

 

[Splitlip]

I don't track all this plastic crap they make nowadays but name me an example of an unbalanced regulator. N

Nem:
I would hazard a guess that your vintage double hose is unbalanced.
Tim

 

[Nemrod]

The DA Aqua Master is not balanced but none have been made in 40 years and I am not thinking the R-190 is still being made or is it?

N

 

[vintagediver]

I don't track all this plastic crap they make nowadays but name me an example of an unbalanced regulator. N

How about a Poseidon Cyclon 300?

 

[Nemrod]

Nem:
I would hazard a guess that your vintage double hose is unbalanced.
Tim

Yes and no, the Royal Aqua Master is fully balanced and is the same first stage as used in the Conshelf/Titan.

I understand what and how, I was wondering which one the OP is concerned about specifically.

N

 

[Splitlip]

What is an unbalanced reg?

An unbalanced reg becomes harder to breath as depth increases or tank pressure decreases. It is more a function of the tank pressure as I don't think we could could dive traditionaly deep enough to render the reg unbreathable.

A blanced reg delivers the same ip regardless of depth or tank pressure.Then they shut off

I used unbalanced regs alot in the 70's and 80's. They started pulling hard and we knew it was time to surface. As we surfaced we were able to breath.