DIN OR CGA347

[2D1C]

I have a 3300 psi SCUBA tank that worked great with my Sumatra 2500 .22. With the Airwolf when the tank is full I can get 210 bar on 2 fills, then its down to 190 after 8 fills or so.
So I bought a SCBA 60 minute tank BOD 2008 was hydro's last August. This has the CGA347 valve. WOW the fill stations for these are expensive! My question / observation is. it seems to be better (cheaper) to change that valve out and replace it with a DIN. The DIN fill stations are way less money.
The other option I see is to buy SCUBA yoke block to SCBA adapter. This way I could use the SCUBA to get to whatever fill pressure it will do and then top off with the SCBA
Am going to get the grandson into a low end gun, so would have two air sources. I get air for nothing right now, But will eventually get a compressor.
Your guys thought and ideas are always appreciated!

Thanks in advance!

 

[Tominco]

Personally, I wouldn't mess with the valve assembly that screws into the bottle. You could go the route of SCBA to SCUBA but, it adds another piece to the puzzle. Northshorecompressor.com probably has something like what you need. 
Then, there's just biting the bulet and getting set up for SCBA. The hand tight CGA's are more expensive than the wrench tight option. Depending on how often you're on and off, you might consider the wrench tight to keep the cost down. 
I think it ultimately depends on your lifestyle and especially your refilling options. If you SCUBA, or get filled at a SCUBA shop then, I'd move towards those options. If you only use your HP air bottles for airguns, I'd stick with SCBA. They seem to be smaller, lighter, and hold good pressure. 
Tom

 

[FunGun]

To add some clarification, if you switch to a "scuba" valve which is usually called a "K" valve, they are are only designed to be used in the 3000 psi range. SCBA and DIN valves are designed to be used in the high pressure ranges since they are screw in type connections for filling. Just something to consider. 

 

[Eaglebeak]

I would think if you can find a DIN valve with the same thread size at the right price, go with that. Here in Australia, the SCBA valve standard is Din 300 so we don't have to worry about adaptors and different valves for HP scuba and SCBA. Yokes are only used on bottles up to 200 bar.wich have little value for airgun use.

 

[Centercut]

SCBA fill assembly is under $45. Much cheaper than replacing the tank valve. I have used this one on 3 separate SCBA tanks for the past six months with zero problems. It works hand tight no leakage. Of course you can use a wrench to snug it up if you want. 

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F401399548321

 

[2D1C]

Thank you all, Centercut I wondered
about those coming from Hong Kong!

 

[Centercut]

They work like a champ. They used to sell one that has the knurled knob for hand tight but I haven’t seen it in a while. Not really a necessity. You can buy them with 24” or 36” micro bore hose, same price. I’ve noticed some members requesting accuracy for acknowledged tips. Haven’t asked before, seems tacky, but when in Rome...

 

[Hynzie]

Let me tell you CENTERCUT led me to this site and im grateful. The valve is is for my 4500. 74cf tank that. He also gave me this site. Works excellent 

 

[Centercut]

Thanks Hynzie, that means more than an accuracy point.

 

[2D1C]

Thanks again! Dropper an order for the one in the link you posted Centercut. I've watched for comments put must have missed them. Saved enough for 5 tins of JSB's Onward I go!

 

[Centercut]

Good deal. Make sure your dive or paintball shop can fill CGA347. My dive shop has an adaptor that is Yoke to CGA347, or you can use your new fill rig with a male to male foster adaptor. They’re about $7 in eBay. Not sure if EBay still has the Yoke to CGA347 or DIN to CGA347. Most dive shops have a box of all sorts of adaptors. Also, if you have your own compressor then the above is moot. 

 

[2D1C]

My buddy has a paintball field so I should be good to go. Not sell the Scuba till I'm sure!

 

[2D1C]

Accuracy points to you both!