I recently purchased a Scott SCBA tank with a quick connect for breathing apparatus and it also has a separate fill connection. I need to replace the quick connect with the appropriate connector that fits my airgun filling gauge. Anyone know what I need and where to get it? 
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Need advice on Scott SCBA Quick Connect
- Thread starter mng2020
- Start date
Funny, I just posted the same thing the other day. So my understanding to this point is that the quick connect fits into a DIN300 (G5/8) fitting in the valve itself. So if you remove the quick disconnect with a wrench a DIN300 fill station will thread in. I have not verified at but it’s as far as I have gotten without receiving receiving my tank yet. If you try it before I do, let me know the results.
as for the quick connect....I believe it’s proprietary and you won’t find a mating connector.
Ryan
as for the quick connect....I believe it’s proprietary and you won’t find a mating connector.
Ryan
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Does air come out the fill port when you open the bottle valve?
If so, you should be able to screw your filling system onto the bottle there. It's called a CGA-347 and it looks like you have the "wrench tight" style. There's also a "hand tight" which is much easier to use.
Tom
If so, you should be able to screw your filling system onto the bottle there. It's called a CGA-347 and it looks like you have the "wrench tight" style. There's also a "hand tight" which is much easier to use.
Tom
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The filling port is a one way valve. Air only comes out of the quick connect. I'm trying to find out what the threads are for the quick connect but not having any luck thus far.
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Might be cheaper and easier to just replace the scba valve with a standard one that will fit your fill set up. Usually can find them on ebay for about $30 or so.
Example: https://www.ebay.com/itm/SCOTT-SCBA-TANK-VALVE-P-N-800010-10-WITH-TOP-GAUGE/253373340281?hash=item3afe3a5a79:g:aqIAAOSwi4laXhTD
Example: https://www.ebay.com/itm/SCOTT-SCBA-TANK-VALVE-P-N-800010-10-WITH-TOP-GAUGE/253373340281?hash=item3afe3a5a79:g:aqIAAOSwi4laXhTD
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Yes, I realize it is a one way valve. We have them at work. I couldn't recall if the air flowed or not when the valve was opened.
If you don't get any satisfaction through Scott, you might try "Dalmation Fire" for thread information and possibly a fitting. There is a system available that will bypass the one way valve but, it has a hefty price tag (~$300 IIRC). You're chasing the least expensive route with what you're trying to do but, I'm not sure if what you're looking for will be available. You may have to get "an adaptor, to an adaptor, to an adaptor" type of set up. Another option might be to simply replace the valve assembly. If you end up looking into that route, send me a PM. I have an older valve, that will be a direct swap, that I can send to you. Those valves should be screwed in to a specific torque but, I don't think they use any loc-tite on the threads, since it is designed for breathing air. Point being, you may have to take it to a shop to get the valves swapped and a fresh (sacrificial) o-ring installed.
Best of luck with your search!!
Tom
If you don't get any satisfaction through Scott, you might try "Dalmation Fire" for thread information and possibly a fitting. There is a system available that will bypass the one way valve but, it has a hefty price tag (~$300 IIRC). You're chasing the least expensive route with what you're trying to do but, I'm not sure if what you're looking for will be available. You may have to get "an adaptor, to an adaptor, to an adaptor" type of set up. Another option might be to simply replace the valve assembly. If you end up looking into that route, send me a PM. I have an older valve, that will be a direct swap, that I can send to you. Those valves should be screwed in to a specific torque but, I don't think they use any loc-tite on the threads, since it is designed for breathing air. Point being, you may have to take it to a shop to get the valves swapped and a fresh (sacrificial) o-ring installed.
Best of luck with your search!!
Tom
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Are you sure that there is a check valve on the CGA 347 side? If the quick connect hole is not suitable for a DIN 300 fitting, the cheapest thing would be to replace the valve. Make sure that the neck threads are compatible before ordering. Here is a metric version for an example. https://www.aliexpress.com/item/4000026760786.html?spm=a2g0s.9042311.0.0.75fe4c4djQWzOl
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When we plug them into our packs using the quick connect, nothing gets attached to the CGA. It's just covered over by a rubber boot. Then, when we turn the air on, we use the valve. Without an internal check valve, the boot would get blown off.
Tom
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When we plug them into our packs using the quick connect, nothing gets attached to the CGA. It's just covered over by a rubber boot. Then, when we turn the air on, we use the valve. Without an internal check valve, the boot would get blown off.
Tom
Thanks Tom. I've never seen that type of valve before. I assume that it is made that way so as to avoid removing the tank when filling. Our fire brigades here in Aus only use DIN valves. By the way, the recommended torque for the valve is 70 FP but the advice recommended by the SCUBA industry is finger tight only because of the O-ring seal. If they are torqued down they can be almost impossible to remove for periodical inspections.
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Potentially easiest fix is to remove the Quick Connect piece and confirm that the valve body is indeed a 300DIN thread. Then get in touch with Joe Brancato (airtanksforsale.com same guy as previous poster gave you link to) and have him assemble you a 300DIN to CGA adapter. He made me a CGA to foster female as well as a 300DIN to male foster.
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I just received my tank and confirmed that the socket the quick connector fits into is 300 bar DIN (7-thread, G5/8). A standard DIN300 filling station should fit perfectly. I also confirmed that both fittings are the same (quick connect, and DIN300 Fill connector with integrated check-valve).
Major Diameter for the thread on the quick connect measures 0.875x14TPI (G5/8 7 Thread, which is the DIN 300 Standard)
Happy shooting!
Pic attached
Major Diameter for the thread on the quick connect measures 0.875x14TPI (G5/8 7 Thread, which is the DIN 300 Standard)
Happy shooting!
Pic attached
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OP still needs an adapter (SCBA to 300DIN) if he wants to use the fill gauge setup he already owns. I have one just like his except mine is 300 DIN already.
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Thanks for all the comments. I am getting a new valve without the quick connect from another member here on the forum. That way I can use the filling station I have on hand.
AllthingsAl, let us know if you actually installed a DIN300 filling station to the valve and it works. I'm sure I'm not the first or will be the last airgunner to buy a tank with one of these valves.
AllthingsAl, let us know if you actually installed a DIN300 filling station to the valve and it works. I'm sure I'm not the first or will be the last airgunner to buy a tank with one of these valves.
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Ok so final conclusion here for this valve NxG2. I purchased a DIN 300 fill station and had multiple problems.
1. Threads on fill station were slightly off in diameter (too large). G5/8 is different from 7/8-14 (latter is on the valve) (had to rethread deeper)
2. Fill station connector is too long and won’t seal. (I had to cut it back)
Conclusion: Purchasing an entirely new valve with CGA347 connector is the way to go. I made the old valve work, but only because I have a metal lathe.
1. Threads on fill station were slightly off in diameter (too large). G5/8 is different from 7/8-14 (latter is on the valve) (had to rethread deeper)
2. Fill station connector is too long and won’t seal. (I had to cut it back)
Conclusion: Purchasing an entirely new valve with CGA347 connector is the way to go. I made the old valve work, but only because I have a metal lathe.
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it's gonna cost more for fittings to adapt it than just buying a new valve, Ebay
https://www.ebay.com/itm/SCBA-4500-PSI-Tank-Valve-Came-off-Interspiro-Tank/283411245354?hash=item41fca0692a:g:fLIAAOSw1XRcXKnE:sc:USPSPriority!92069!US!-1
or for scott tank brand
https://www.ebay.com/itm/Lot-Of-3-SCOTT-SCBA-Valve-Assembly-4500-PSI-P-N-804722-804723/223267837400?epid=1000475047&_trkparms=ispr%3D1&hash=item33fbccd5d8:g:weMAAOSwOWdcBDTE&enc=AQAEAAA
I don't know if there is any difference in thread size to the bottle?
https://www.ebay.com/itm/SCBA-4500-PSI-Tank-Valve-Came-off-Interspiro-Tank/283411245354?hash=item41fca0692a:g:fLIAAOSw1XRcXKnE:sc:USPSPriority!92069!US!-1
or for scott tank brand
https://www.ebay.com/itm/Lot-Of-3-SCOTT-SCBA-Valve-Assembly-4500-PSI-P-N-804722-804723/223267837400?epid=1000475047&_trkparms=ispr%3D1&hash=item33fbccd5d8:g:weMAAOSwOWdcBDTE&enc=AQAEAAA
I don't know if there is any difference in thread size to the bottle?
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I got this from Amazon and when I tried to install into the valve body where the quick disconnect was, the threads were to too large. It basically allowed a half turn before it wouldn’t screw in anymore. Is this an issue with the product or did I get the wrong size?
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