Thinking of converting a fire extinguisher to a CO2 cylinder. Can this be done? Anyone got lobang where to do this convertion. Thanks
[quote:8789a3765d="spen"]Thinking of converting a fire extinguisher to a CO2 cylinder. Can this be done? Anyone got lobang where to do this convertion. Thanks[/quote:8789a3765d]
Very interesting idea. Why don't you check with Soxal or Sealico? They are the gas professionals, should be able to give you an idea.
Cheers
Boon Yong
to install the main valve and certifying it may cost more than an off-the shelf co2 tank.
check with soxal first to see if they are willing to certify the converted tank and whether it is safe.
Thanks for the reply. I checked with Sealico and they can do it. They charge $25 for changing the main valve. Is there a need of certification which they didn't mention to me?
I wouldn't do that if I were you. Take no chances when it comes to safety... not only for yourself but also the people around you.
I have a CO2 extinguisher tank outside my office. The cylinder feels thinner than those used for planted tank hobby. The issue on dangers associated w the CO2 tank (because of the huge PSI) has been discussed on this forum before. Do check this out.
It's not worth the risk.
Thanks elmike for your valuable point. U are right. Not worth taking this risk. I will drop this idea. Kam siah
co2 tank for fire extinguishers and aquarium use are built to similar specifications. fire extinguishers could be better build as they are installed in public places. both are designed to store liquified co2.
check with soxal if they will test converted tanks. if they do, then it would be relatively safe. else discard the idea.
Just being curious, so I walked around the office to find a fire extinguisher: max pressure (from the gauge) is 20 bar (~ 290 psi). A normal CO2 tank pressure is around 1000 psi (refill pressure I get). It means the fire extinguisher tank must be able to hold ~3.5x pressure.
Hell, I won't take the chance. The chance of air leaking is one thing. But the chance of explosion (with all those flying sharp metal) is a different thing...
(I used this site to do the pressure convertion)
[quote:89f9973e1c="blur2x"]Just being curious, so I walked around the office to find a fire extinguisher: max pressure (from the gauge) is 20 bar (~ 290 psi). A normal CO2 tank pressure is around 1000 psi (refill pressure I get). It means the fire extinguisher tank must be able to hold ~3.5x pressure.
Hell, I won't take the chance. The chance of air leaking is one thing. But the chance of explosion (with all those flying sharp metal) is a different thing...
(I used this site to do the pressure convertion)[/quote:89f9973e1c]
I believe those are dry chemical or BCF fire extinguishers. These extinguishers operate at much lower pressure compared to a CO2 fire extinguisher (10+bar vs. 60+bar). These extinguishers are also lighter and not as thick-walled as a CO2 one.
BC
not any fire extinguisher tanks can be used.
only the tank of a co2 fire extinguisher can be used. these tanks are normally black in colour.
i doubt any co2 gas refiller will change the main valve and fill co2 into a tank not designed to store liquified co2.
the tank would most likely blow up in their faces first.
Why put w all the hassle and then having to live without total peace of mind?
just get a complete set
got my Dymax set for $250 (Italian-mad cylinder, rest Tw). Quite happy w everything safe for the bubble counter which I've since substituted w another of different brand.
You can get cheaper still ($185) at another lfs.
elmike, what size is your CO2 tank? Solenoid? Where did you get it?
And what does the $185 package have? And where is this lfs?
Thanks
Oh, the rare old Whale, mid storm and gale. In his ocean home will be. A giant in might, where might is right. And King of the boundless sea.
Mine fr Clementi 328 w solenoid, 3L cylinder, b.c, backflow valve, reactor, tubing + complimentary plt fertilisers.
Nature quoted me $185 for 3.5L
Hope that helps.
Hi elmike, already have a Dymax 2litre co2 set. Actual just thinking of having a spare cylinder at a cheaper cost. But looks like is too much risks.
[quote:2c29b47483="tawauboy"]not any fire extinguisher tanks can be used.
only the tank of a co2 fire extinguisher can be used. these tanks are normally black in colour.
i doubt any co2 gas refiller will change the main valve and fill co2 into a tank not designed to store liquified co2.
the tank would most likely blow up in their faces first.[/quote:2c29b47483]
Just one news to share, new regulations require all new extinguishers to be painted red. So no matter it is CO2 (used to be black) or BCF (used to be green) or dry powder (used to be blue) extinguishers, they will all be red in future.
BC
when will this new regulation come into effect?
are you working in a building management related field?
That's what I heard from a professional safety officer. From what I observed too, the new fire extinguishers are red in colour, although the existing ones are still coloured black, green or blue.
I think the new colour coding will be on the label or a colour band. This is common standard for many other countries.
BC
[quote:2ebddbf763="bclee"]That's what I heard from a professional safety officer. From what I observed too, the new fire extinguishers are red in colour, although the existing ones are still coloured black, green or blue.
I think the new colour coding will be on the label or a colour band. This is common standard for many other countries.
BC[/quote:2ebddbf763]
the colours are used to differentiate the content inside the cylinder and places suitable for used.Red is water content.Black is liquid Co2. Blue is dry powder.
[quote:d70df3a8fc="tropic"]
the colours are used to differentiate the content inside the cylinder and places suitable for used.Red is water content.Black is liquid Co2. Blue is dry powder.[/quote:d70df3a8fc]
It used to be that way. The new ones will all be painted red and the colour coding will only be on the label to differentiate the contents.
BC
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