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Old 03-10-2013
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Re: CO2 fire extinguisher?

I've never heard that but my training may be lacking. you might want to call Kidde or whoever made it tomorrow and check directly with them, for that model.

I keep hearing FUD from extinguisher and hydro shops. Most recently the owner of one (extinguisher business that is a certified hydro test center as well) told me that in order to get a "plus" rating on a SCUBA tank he'd need special equipment and procedures so he didn't do them. The DOT says all he needs to do is read a number and compare it to a chart, same as he does every time, every hydro. FUD rules! (Well, technically, yes he would need special equipment, one extra metal stamp punch, $25-$120 and good for fifty years, or one Philips screwdriver, whic would wear out a bit faster, to stamp the mark.)

Could be the vertical installation is required by fire or building codes, transport codes, etc. and the shop is simply confused, too. My understanding is like yours: CO2 comes out as a highly pressurized gas, turns into "snow" as it hits the low pressure outside. I didn't recall, but now see the instructions do say "Hold upright" on the label. I'd be curious to find out. Or to hear from one of the members that has had formal USN fire control training.

Last edited by hellosailor; 03-10-2013 at 12:51 PM.
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Old 03-10-2013
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Re: CO2 fire extinguisher?

I'm pretty sure you want to discharge the liquid, not the gas. With other than upright you will not be able to discharge all the liquid, the pickup tube will uncover before empty.

S/V Elnora
Pacific Seacraft "Crealock" 37 #312

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Old 03-11-2013
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Re: CO2 fire extinguisher?

I sent an e-mail to several marine fire suppression companies asking the question about a horizontal mount option. Here are the replies so far.

["Good day ,

When it is a regular CO2 extinguisher and has a standard siphon tube it must be mounted vertical.

Met vriendelijke groet,

Kind regards,
Paul Weber

Ajax Chubb Varel
Marine department"]


An ordinary extinguisher can NOT be mounted horizontally due to the tube inside. You will not get out the CO2 fluid that way.

If you need to install it horizontally, the inner tube must be removed. This is possible if you are willing to pay for a refill as an addition to the price for the extinguisher.

Best regards

Kenneth Molnes
Technical Sales Manager Safety
Nordic, Baltics & Russia
Wilhelmsen Ships Service AS"]

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