Newbie question on controlled filling of air rifle

[jde727831]

Greetings and thanks in advance for your guidance,

I just purchased a JB Tiger Shark 4500 PSI 73 Cu Ft SCBA tank with two gauges to fill my .22 caliber Umarex Zelos. Do I need to buy some type of system to ensure I don't over fill the rifle (3,625 psi) or just be super careful and slowly open the tank valve?

Any guidance is much appreciated.

R/

jde

 

[Gerry52]

Fill slowly, bleed quickly, PAY ATTENTION as you reach desired pressure. YOU are the "system" to keep from overfilling.

 

[Back_Roads]

Best to see the needle barely moving as not to generate too much heat, I slowly start closing the valve when 3/4 the way there.
There are in line regulators if you feel the need. Huma comes to mind.

 

[357cal]

For inline regulators there is August Ind, that's what i have and never had a problem.
https://www.augustindustries.com/ If you don't know what you want, if you explain what you want it for, they will build it for you.

 

[SilentSquirrel]

When filling from a tank I use a fitting with a flow restrictor to help slowdown and control speed of the fill
Here is one from Pyramyd
Other suppliers may have them as well

Air Venturi Female Quick-Disconnect to 1/8" BSPP Male, 5000 PSI | Pyramyd AIR

We've got a great price on Air Venturi Female Quick-Disconnect to 1/8" BSPP Male, 5000 PSI at Pyramyd AIR. Shop where the experts do!

www.pyramydair.com

Edward

 

[Revoman]

JB Tanks normally use a "Slow-Fill" valve. You still wanna crack it open slowly and not open it much. It will barely move the needle, it's supposed to do that.
DO NOT LEAVE THE TANK FOR ANY LENGTH OF TIME AND WATCH THE TANK GAUGE AS IT APPROACHES THE FILL PRESSURE!
As stated by Gerry 52, YOU are the shut-off switch.

mike

 

[JimD]

I worried about filling my Prod from my Yong Heng because it only stores 60cc at up to 3000. I quickly learned that it still takes most of a minute and is very controllable. Now I use the YH to fill a bottle and fill guns from it including the Prod. That can be even faster but is also very controllable. Fast fills are undesirable anyway. The air heats up and then you don't have the pressure you think you have. Best to go slow.