Help – Can Only Get 3600 PSI Fills – OK For Carbon Tank to Fill Vulcan?
Help – Can Only Get 3600 PSI Fills locally
Is this sufficient to fill a carbon tank and then fill up my Vulcan .25 to operate properly?
All Replies
Viewing 7 replies - 1 through 7 (of 7 total)
Does Vulcan Bull pup have a tank size of 290cc?
By calcs, a 97cu ft tank filled to 3600psi will give 6 to 7 fills if I don’t let the pressure in the Vulcan tank drop below 140bar and I shoot down to 150bar?
I am getting a 97 Cubic foot carbon air tank – Great white
Thanks for the good info Kris-
This is my first real air gun so you can tell I’m a newbie
I called around all day – even the local air gas supply co has to send cylinders to Tampa for HP fills over 3,000psi
Local dive shop max out at 3600 psi – “maybe” 3700 if they wait for it to cool down and top off
thanks again
look harder, maybe you can find a different place with full 300bar fills.
Calculate it
just to clarify, is the place where fill your tank is giving you maximum of 3600psi? or is the carbon fibre bottle is regulated to that output?
it will work fine. but you will not have many full 250bar refills.
3600psi is 250bar. is the max operating/fill pressure of the vulcan so at least you never overfill.
:rofl:
if they fill the cf tank to 250bar, only get only one full fill from it, all following will be slightly less and less. I would not be worried, though.
i found that my gun was not happy with fills over 220bar anyway.
The gun will work with anything over 140bar in the cylinder, that is what the internal regulator is set around 130-140bar.
i would get a large volume 15L air tank, so you will have acceptable number of refills.
what i mean, if you had only a scuba tank with 230bar nominal, but your fill place will fill it fast so the cylinder is warm, by the time it cools down it will be closer to 220-210bar. and you will have only very few FULL 200bar fills.
of course It will fill your vulcan to 190 and 180 etc. which is fine but you will not have many shots. How fast this drops is factor of leaks during the fill and volume of the cylinder.
i never fill my Vulcan higher than 220bar.
you can try to download chairgun it has in the tools section a fill calculator. i can talk you through that if it is not clear.
the 140bar x the volume of vulcan cylinder is dead air, it just sits there unfortunately, you only use
250-140bar x volume of the cylinder for shooting.
if you fill to 200 bar it is 200-140=60bar x volume of cylinder.
if you fill it lower, it will still shoot. but for less number of regulated shots.
my .177 is set to very low 70bar and low power, but i use most of the air in the cylinder.
i hope this info helps.
just make sure they fill it sloooowly so it does not warm up much. or allow time for it to cool down.
Viewing 7 replies - 1 through 7 (of 7 total)
- You must be logged in to reply to this topic.
yes 290, not sure though how the plenum is included or substructed… sounds like your bottle is 15L equivalent, you will be fine.
i think you may have 1 magazine less than optimal shots per fill. so not 4 but 3 or so. or not 5 but 4 magazines. not too bad.
as long as you dont empty the vulcans cylinder by shooting, you will be fine. your power will drop off much earlier, you will see. as long as you dont go under 100 i think nothing can break, and that is by a large safety margin. things break when people shoot it completely empty.
enjoy! :8: