Servicing 2nd stage with QD fitting

[recyclingfreak]

I have an Aqualung Titan and it has a quick disconnect. Is there a way to screw in an inline adjuster? If not, is there a way to convert the 2ⁿᵈ stage to a traditional fitting?

 

[Nemrod]

Yes, remove the QD fitting.

Why not show a picture of what you have going on?

Remove the QD fitting from the regulator second stage, purchase a new hose without the QD or if possible also remove the QD from the hose. Toss in trash or the rainy day box and forget you ever saw it. Connect the second stage directly to the LP hose like everybody else save for whoever owned this contraption before you.

 

[happy-diver]

I'm sure my house is closer than the trash can, I might use it on a rebreather project, thanks

Unless your reg is encrusted with diamonds

 

[Tanks A Lot]

Unfortunately converting the Titan QC to a "normal" Titan doesn't make much sense. While quite a few parts are interchangeable, too many are not. For example the main housing itself and poppet housing are different, just to name a couple.

The hose itself can be converted easily by just unscrewing the swivel adapter, but that doesn't help all that much for your case.

If you are just after tuning the regulator, I see two options. Buy an aftermarket inline adjuster that fits this connection. ScubaClinic has one of these adapters. Or tune the second stage without an inline adjustment tool. The process is rather simple and just requires patience and an appropriate sized flat-head screwdriver.

1. Screw in the orifice with the screwdriver until you are very close to touching the seat.
2. Attach the second stage to a first stage that has the appropriate intermediate pressure set and slowly pressurize the system.
3. If no air leaks from the second stage, depressurize the system, remove the hose and loosen the orifice ever so slightly. If air escapes from the second stage, depressurize the system, remove the hose and screw in the orifice ever so slightly.
4. Attach the second stage to a first stage again and slowly pressurize the system.
5. Repeat step 3 until you found that sweet spot where the second stage is tuned to your liking.

The usual service procedures applies to the above just as it would to an inline adjuster. Try and avoid turning the orifice without depressing the lever and if you have a Magnehelic gauge, you can use it just as you normally would.