Potentially stupid compressor question

Given the low cost of compressors that will do the job of inflating vehicle tires (under about $25 or so for a 12V one), I don't think it would be worth it, but yes, with the right additional fittings and such.

First, you could make your own "adapter" that would connect a foster to a hose chuck, but you'd need to be very careful not to let the line pressurize before connecting it to a valve or will likely blow up - it would be slow and hard to use. I'd want a chuck that clamps onto the valve so that it won't stop flowing, and then I'd control the flow by turning the compressor on and off.

I think the best way to do this would be to fill a tank, and then regulate the pressure down to the right level for a shop compressor or less. A regulator that would do that could cost upwards of $500 or so . . . .
 
I used a foster with a check valve in it,,, it does not run away filling as the volume of my small bubble tank,,, takes my coltri a couple of minutes
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I have a rig that allows me to fill tires from my SCBA TANK in an emergency if I very slightly & slowly open the valve. I'm sure our compressors COULD do it but, as said before, it would be time consuming. Unless you have a Schrader fitting that locks on, hands free, to the tire stem you'd have to hold the inflator in place (fighting time & back pressure) for who knows how long. NOT at all practical!