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Re: [APD] Aquatic-Plants Digest, Vol 35, Issue 8
For any given flow rate, liquid CO2 will expand into more gas, than
gaseous CO2 all by itself.
I agree about the recommended use of CO2 fire extinguishers in certain
situations, but there is an individual fully awake and aware, who is
releasing the CO2 in the confines of an enclosed home.
Unlike another situation where he is gassed while asleep.
I am not sure if CO2 has a characteristic smell, or some companies add
something that gives out an odor to the gas, but I have had a CO2 tubing
burst (at the connection to the solenoid valve, which is quiet hot), the
pressure out of the regulator - 1.5 kg/cm2, it's almost impossible to
get anywhere near the CO2 system and shut off the cylinder valve, I had
to wrap a wet towel over my face to be able to do that, my nose was
tingling for a while after I shut off the gas, this in my well
ventilated open air balcony. It would be much more difficult to handle
inside a room, worse inside a cabinet, the flexible tubing
(silicone/airline) people use may not be able to handle the liquid-gas
A leak after the needle valve will be miniscule and can be easily worked on.
Anyway my system is piped to 5 tanks under 1.5kg/cm2 pressure, I use
Polyurathane tubing ( max. pressure - 20kg/cm2) to pipe the gas, to the
individual needle valves next to the aquariums. It will not be the case
with many people.
Anybody know of CO2 regulators that limit the flow of gas through them?
The welding regulators we use do not limit the gas flow. ;-)
Keep the cylinder upright, and you are safe. Have kids/pets around?,
strap the cylinder to prevent it falling. The liquid-gas expansion and
blah... blah.... well is just that. ;-)
> Again, one has to consider the effect of the flow rate. Fire
> extinguishers typical are meant to dump lots of CO2 in a very short
> time, pounds in just few miniutes art most. Gardeners' CO2 otoh, is a
> miniscule flow rate.
> It can be very safe to operate a fire extinguisher in an enclosed house. IN fact, it's the recommend corse of action in certain situations! ;-)
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