Filling From A Tank

[Blue11811]

Hi Everyone,

New here to air guns. I have a 90cf tank that shows around 4300psi on the tank gage but only fills the gun to around 3000psi is it because of the amount or air in the tank that it will only fill that high. I thought it would level out to the tank pressure or am I wrong.

Thanks,

John

 

[FrankinFairfield]

John,

You apparently have a regulator on your tank that restricts the amount of air that will be allowed out of the tank. This was a good idea for some of the paintballers who may or may not have a gauge on their pistols/rifles.

Ninja bottles normally come with a regulator.

In my case my tank (AV) has a restrictor controlling how FAST the air is expelled from the expelled from the tank, I assume so the rifle/pistol is not filled to quickly and the gauge and/or seal are damaged.

To correct the situation you would have change the valve or remove the regulator..

Good luck

 

[jking]

Blue, you said 90CF but that is a large fireman type tank. Did you mean 90CI maybe, one of the smaller tanks that FF was referring to? If so that would make sense that it could have a regulator preset to 3000#. If indeed a 90CF I don't recall seeing any with a built in regulator. 

Jking

 

[Blue11811]

Hi Everyone,

The tank is the great white from now Top Gun and it has the slow fill valve on it and the tank gage and the fill gage. I opened the fill valve and let it settle down and still did not fill any higher. I thought that your fill pressure would equal out to your fill tank unless you stopped it at a certain level. Depending on the gun requirements. Correct me if I am wrong.

Thanks,

John

 

[kayaker]

Blue a great white is ( 97 cu ft) with a slo fill valve . What gun are you filling ? the gauge fills fairly fast till it reach's your pressure in the gun then really really slow beyond that point . The guppy is (90 cu in) btw

 

[biohazardman]

You are correct in your assumption that the gun should equalize to whatever is left in the tank. I have the same set up and it takes a couple of minutes to fill my Impact to 3600psi.

If you can only get to 3000psi sounds like you have a reg on your tank. Better get hold of your vendor and ask him about it.

 

[MonsterMaxx]

I doubt he's got a reg on the Great White w/o knowing about it. This is a very expensive option. I can't seem to find it now, but seems like Joe's tank reg was like $400.



Blue, some pics would help us determine what you have. Include ones of the rifle.

 

[Blue11811]

Hi Everyone,

The guns are the AV Avenger that fills to 300 bar and the other gun is the Brocock XR Sniper and it is filled to 250 bar. The tank is the normal Great White with the normal set up. The only option was to be able to fill at a dive shop. The reason for getting it was because I am new and did not want to run the risk of over filling so thought the slow fill would be better. I just thought it was strange that the tank gage is showing the 4300 but guns not going that high. Noticed it on the Avenger not so much on the XR. I have filled both guns 2 times so that is why I am thinking air volume not pressure. I would have thought the tank pressure would have dropped some. I will watch it close when I refill again.

Thankks,

John

 

[bubblerboy64]

My first guess that your gage on the tank is defective. You should be able to bleed off some air and see if the pressure drops. Hooked to a gun it should bring the pressure up to the pressure in the tank. The fact that you have attempted to fill two guns with the same results tells me it’s the gage on the tank