SCBA tank valves

[Bluecup]

Good evening,

I was wondering if anyone could tell me if there is an affordable replacement valve for the Scott SCBA tank. I do not like the standard valve, I believe they are designed to be fully closed or fully open. They do not give you a comfortable slow fill control like a SCUBA valve gives you or the much more expensive valves on the great white or air venturey set ups. Could I use a reducer bushing to use a SCUBA valve? Any suggestions anyone could give me would be great.

Thank you,

Jim

 

[T3PRanch]

Yes there are several. Air Venturi provides the Jubilee valve (orifice in it for slow fill) and JoeB sells his versions as well.

A third option is Ninja's new fill assembly but it currently needs an adapter to fit the standard size SCBA Tanks. Rumor is that a version for direct installation in the Scott style SCBA tanks is in the works! Personally I love the Ninja since it has an orifice and the valve self bleeds the line when closed making one handed operation easy.

All of these will set you back $175 or more new.

 

[Centercut]

I’ve never had any issues with using the CGA 347 valve to control fills. Keep your hand on the handwheel, and crack it open and shut repeatedly until you get a good feel for the fill rate. It’s pretty easy and safe with proper caution. 

 

[T3PRanch]

I agree CC but in my early days of PCP shooting I was paranoid because of certain Videos that certain sellers of other equipment posted.

There are also those who say you can't fill a gun from an unregulated 6K N2 tank but it is not difficult when proper attention is maintained throughout the fill process (as brief as it might be).

A short attempt at Tank Haiku

Fill it quickly NO

Fill it cautiously to test

Fill it slowly Best

 

[texagdds]

Agree with mike - pretty simple feathering the valve on the CGA 347. 

 

[18.13]

http://www.ebay.com/itm/Drager-4500psi-SCBA-tank-cylinder-valve/372375454916?_trkparms=aid%3D444000%26algo%3DSOI.DEFAULT%26ao%3D1%26asc%3D20170221122447%26meid%3D73caf5614b4943119590c1ac25916485%26pid%3D100752%26rk%3D3%26rkt%3D6%26sd%3D372424787006%26itm%3D372375454916&_trksid=p2047675.c100752.m1982

I like the Drager valves they seem to be the smoothest.

 

[Quad82]

http://www.ebay.com/itm/Drager-4500psi-SCBA-tank-cylinder-valve/372375454916?_trkparms=aid%3D444000%26algo%3DSOI.DEFAULT%26ao%3D1%26asc%3D20170221122447%26meid%3D73caf5614b4943119590c1ac25916485%26pid%3D100752%26rk%3D3%26rkt%3D6%26sd%3D372424787006%26itm%3D372375454916&_trksid=p2047675.c100752.m1982

I like the Drager valves they seem to be the smoothest.

Agreed! I have a 60 min Drager and love the valve.. very smooth. I also have a Scott 30 min and the valve has a “ like stop” steps in it. I agree it’s either on or off. No real in between. I think I will pick up a used a Drager valve. Thanks for the link. 

 

[John "spysir" Blount]

Agree with T3p et al. personally never had an issue, but.

Not all valves are the same and you can find a rare TOO fast exception. My first scub tank had a valve that opened SO fast on a clock if you started at 12:00 it would be fully opened at 3 minutes past, got used to it then got another and found mine was the fastest anyone had ever seen. Other than a rare exception no worries/issues ( used that tank for years w/out issue).

Currently have a "scott" pack and after tightening the little nut in center of control knob - eliminates the push in to turn thing- and find it very easy to use. I try filling at 50-100psi second to prevent heat & it works fine.



John

 

[Bluecup]

John,

The problem I have with the Scott valve is the push to turn thing, are you saying if I tighten the nut it will stop the need to push it in? Do the dragger valves have to be pushed in or are they like a scuba valve?

Thank you,

Jim

 

[John "spysir" Blount]

Jim,

I read that on the internet and have only tried it on mine. Yes just tightening the nut in the center made it so there was no longer a push to turn feature, just turn.

No idea on dragger but the only dragger ( blue colorered) you did not need to push in to turn the valve.

John

 

[D-RIG]

you can try to remove the spring from under the handle this makes

it much more predictable and easer to use without replacing the valve .

 

[Bluecup]

Thanks everybody,

I feel a little stupid, I was fighting with the push to turn feature on the Scott valve and that was making it difficult to have precise control. I followed Spysir/Johns advise and just tightened the nut on the valve handle and now it is perfect. I have just as much control as I did with my scuba valves.

Thank again,

Jim