How many air ups per 10 lb. CO2 tank?

[JK_JOE]

How many times can you air up a set of four 33x12.5x17 tires from 15 p.s.i. to 30 p.s.i. with a full 10 lb. co2 bottle. :thinking:

Thanx in advance for you responses. :)

[Offroadme]

hmmm i would like to know the same thing as well:thinking::thinking:.... just for the knowledge base in my brain add it and file it away for future reference

[nclehmann]

From Powertank's website:

http://www.powertank.com/graphics/nc900.gif

[n6on]

WOW! It all depends on just how full the tank is filled, but IMO Powertank is still a bit optimistic with their specs for the 10# tank. I have a homemade setup and the best I can do is fill 4 285/75 R16s 6 times (24 tires from 17 to 30 psi). However, I can’t always get the full 24 so I just go 5 times (20 tires) and use what’s left in the tank to blow the dust out of the air conditioner vents and the floor boards. Ending that 6th time and only being able to fill 1 to 3 tires 50 miles from the nearest gas station is a real bummer and don't ask me how I know! :eek2:

Bob

[JK Dawg]

About what does it cost to fill a 10# tank?

[Joe Lightfoot]

I pay $16 to fill my 10lb tank. I was told that any welding supply or beverage place can fill the tank. I found out that the 3 welding shops in my area wont fill my tank, so I have to drive 30 min to a beverage supply shop to have it filled:mad:. But I do love my tank!!! I can fill about 16 35x12.50x15 tires from 10psi to 28psi

[Mutts08JK]

Being a CO tank you should be able to get it filled at a local paintball store the refills there tanks, Just a thought. I use my 20oz CO2 tank for my markers and can fill up all 4 tires from 15 psi to about 40psi. it also cost alot less than the 10Lber LOL. My buddy uses a 3000psi HPA tank. its about 48cubic inches and can almost fill 4 tires. his are 31 10.50 15 mine are the stock Sahara 255 75 18 or something along that line.

[Big D2]

That looks really intersting. And with the monster valvles it sounds like it's bloody quick....but I'm still not completely sold on them....don't know why though, as they make sense.

[bikerglen]

Air Gas here in Fort Collins charges $17.11 including all the various taxes and hazmat fees. The tank's hydro date must be good, it must be completely empty, and the regulator must be detached. Leave the bottle on the dock outside the door before entering the store.

[ColinW]

Air Gas here in Fort Collins charges $17.11 including all the various taxes and hazmat fees. The tank's hydro date must be good, it must be completely empty, and the regulator must be detached. Leave the bottle on the dock outside the door before entering the store.

That surprises me that you have to have your tank completely empty as moisture could then get in and start rusting the tank.

[HUNTER]

I get mine filled at a fire extinguisher place $18. Old heads with some funny stories While up wait! Welding supply places WONT fill them, Not set up for it or regulations?? I usually let everyone i wheel with air up with it, seconds compared to minutes with little compressors....estimate 16-20 tires.

[BaltChief]

#10 tank costs me $0.52 ti fill.....of course i work for a compressed gas company so I do get it at cost...:D

[nclehmann]

#10 tank costs me $0.52 ti fill.....of course i work for a compressed gas company so I do get it at cost...:D

So would you say that you pass gas often? :rotflmao1:

Couldn't resist! :rotflmao1:

[bikerglen]

That surprises me that you have to have your tank completely empty as moisture could then get in and start rusting the tank.

My theory is that since it is not their tank, they don't know the empty weight and thus don't know when they've reached capacity if filling a partial tank. They're not going to take your word for the empty weight or how much is left.

I'm not an expert on this topic, but I would think the hydro inspection every five years would catch any signs of mechanical deterioration caused by rust, rough handling, etc., early enough to prevent a failure.

-Glen

[sn4cktime]

Not too many CO2 tanks outright fail. Not so much with little tanks, but fullsize tanks most often start life as Oxygen tanks with much higher pressure. We had one at work that was a Nazi tank from WWII.

[bikerglen]

The empty weight should be stamped on the tank by the manufacture, and most tanks made for 4x4 use are aluminum so no rust problems.
I pay $10 for a refill in Denver.

I'll look at my 10# power tank in the morning, but I thought it was stamped with the hydro date, the tank capacity, and a serial number. There's a label to write the empty weight down with a few check boxes to check what accessories are installed at that weight. I'll double check in the morning.

-Glen

[bikerglen]

The empty weight should be stamped on the tank by the manufacture, and most tanks made for 4x4 use are aluminum so no rust problems. I pay $10 for a refill in Denver.

You're right. It's the empty weight that is stamped on the tank; not the capacity. My tank is stamped with 6.6kg which is 14.5lbs. The tank actually weighs 17.25lbs with the shut off valve, bottom guard, and top handle but without the regulator.

If I used the stamped weight, I'd always be shorting myself 3.25lbs or about 1/3 of the tank's capacity.

-Glen