porthole
Retired
Just need to say that if one was to go the bottled gas route (CO2 or nitrogen) the amount of CO2 to be carried would be far less than nitrogen because CO2 is a cyrogentic gas/liquid in the bottle versus nitrogen is just high pressure gas.
In a similar size tank, the CO2 will be roughly 3 times the filling capacity of nitrogen.
HUH? My steel tank is a 72 cu. ft. tank and the aluminum one is 80 cu. ft. of compressed air. I wasn't planning on filling them off the Viair, but maybe taking them (or one) to a dive shop for filling. Just a passing thought at this time, though. The Viair is good for topping off tires, but I wouldn't try to fill a flat with it. That's what Good Sam ERS is for.
SCUBA tanks work well for this. For me the dive shops are easier to get to then the welding supplies. Plus I get free air.
I use an old regulator that was rated for high flow.
A 6" high pressure hose for a gauge and you can buy adapters that will take the threads on the yoke to standard pipe.
My regulator has a 1/2" low pressure port that I am using. I use an adjustable regulator then to get the pressure down to working numbers - 100-125 psi.
If you look around you can also find tire fill adapters that just connect to the tank valve, they are a straight run to the tire valve with no cores. Push it on your valve stem and open the tank, really really quick fills with that!