CO2 powered train horns?

Is anyone on here running a CO2 powered train horn or a power tank powered train horn? i want one but dont want the compressor. I have seen guys doing this on the internet and wondered if any of my fellow forum members have done this.

How long would the tank last? I know a couple of decent blasts will take me from 155psi to about 125 psi on my air tank.

Rookie said:

How long would the tank last? I know a couple of decent blasts will take me from 155psi to about 125 psi on my air tank.

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im talking a 1000 psi tank with a regulator my friend or even higher if i could,
i dont know the regulations on co2 tanks just oxygen and acetylene are my forte lol

why wouldn't you want a compressor?

McDowell said:

im talking a 1000 psi tank with a regulator my friend or even higher if i could,

i dont know the regulations on co2 tanks just oxygen and acetylene are my forte lol

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I'm not familiar with the co2 tanks but if that's the pressure or even high I don't see why it wouldn't work. Set the regulator for 150psi and attach a line to your train horns. Why don't you want a compressor?

shelteredraptor said:

why wouldn't you want a compressor?

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because its just more wiring and electronics that could possibly go wrong. Plus i have had them in the past and they either get really hot sometimes or go out.

---------- Post added at 01:10 PM ---------- Previous post was at 01:06 PM ----------

i would probaly set my regulator at 100-125 psi, plus its really cheap for me to fill my tanks being a welder with an account i get a discount at airgas

All right. A man with cheap gas. Now we got a party!!

cups said:

All right. A man with cheap gas. Now we got a party!!

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im in oklahoma my firend im sorry... plus it isnt very expensive to fill them up anyways.

I have heard you can get scuba tanks and/or firefighter tanks and they hold more and you can acutally mount them sideways intstead of upright like CO2 tanks.

Your biggest issue with CO2 will be mounting it so that you do not pickup the liquid CO2 only the gas. Any time the tank temp is below 88 degrees the CO2 in the bottom will be in liquid form.

Other thing you need to take into account is how hot or cold the tank will get. When the tank gets colder the pressure drops and becomes more liquid, get it cold enough and it will be all but useless. On the other hand the warmer it gets the higher the pressure. Most commercial tanks have a 3k psi burst disc. So if the tank gets over 150 f you probably will burst the disc. Not really an issue outside of the truck but if you have the tank inside hope your windows are open when it pops the disc

If done right it should work great and if you setup a tap you could even use it to air your tires or run an air tool.

The CO2 stored in the tank will be liquid - running a higher pressure will not get you additional capacity.