Re: [T3] Gas Lines

[Jens Vagelpohl <jens@dataflake.org>]

<x-flowed>> Reading the recent oil leak thread, Jim warned about the gas lines and 
> I got thinking - do the gas lines remain full of gas at shutdown, I'd 
> imagine they would right?
>
> I mean, granted a torch on a gas line full or empty would be a bad 
> thing no question, but I was wondering that since its the gas fumes 
> more than the gas itself that ignites, before doing a job like this 
> would it make sense to build up pressure in the lines to make them 
> less volatile?
>
> I'm going with the attitude that there are no stupid questions on this 
> one... :)

Well, the issue is not so much about the gas igniting *inside* the gas 
lines. So pressurizing it won't make much difference. It's more about 
the moment the gas line is breached (by the torch flame or other 
physical force) that you will get ignition, no matter what :)  Of 
course if it's pressurized at that point the fireworks can be all the 
more impressive.

jens

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