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-   -   CO2 Fire Extinguishers (https://www.rcuniverse.com/forum/rc-jets-120/160063-co2-fire-extinguishers.html)

rcav8tr 06-11-2002 06:05 PM

CO2 Fire Extinguishers
 
Hi Gents/Ladies

Where is everyone getting the CO2 extinguishers and what are they paying? Is US$62.50 reasonable for a 10lber?

Ed

Modelman 06-11-2002 06:19 PM

CO2 Fire Extinguishers
 
Hi Ed,

That sounds reasonable to me! I paid $80 for a refurbished 5# unit!

Craig

bkf 06-11-2002 06:42 PM

Re: CO2 Fire Extinguishers
 

Originally posted by rcav8tr
Hi Gents/Ladies

Where is everyone getting the CO2 extinguishers and what are they paying? Is US$62.50 reasonable for a 10lber?

Ed

That's a very good price. Going around to the local firehouses you can almost always find one of the guys is into selling fire equipment. A great source of both equipment and the knowledge to use it. You would be surprized how many do not know how to use an extinguisher properly. The fire guys are a nice bunch of people :)

JohnVH 06-11-2002 06:45 PM

CO2 Fire Extinguishers
 
I got a used one from the local fire place for $45

arw9fmw 06-11-2002 06:47 PM

Fire Extinguishers
 
You would be way ahead if you can find a "HALON" extinguisher. The EPA has banned their use but there are still some around. There is also a replacement for Halon but I think it is rather expensive.

Halon is a clear gas which starves the fire for oxygen. It is at ambient temperature so there is no thermal shock to the turbine. No mess - the gas just blows away. CO2, since it is very cold, could possibly damage your turbine. It also leaves a pretty bad mess after you use it.

bkf 06-11-2002 06:50 PM

CO2 Fire Extinguishers
 
What kind of mess? This is a real question as I would like to learn. These things are something to have around and hope you never have to use them. Ken

bkf 06-11-2002 06:55 PM

CO2 Fire Extinguishers
 
You know this is a good question for the new turbine help forum. The reps $.02 on the effects and proper use if it should be needed.

Planecrazy232 06-11-2002 07:21 PM

Re: Fire Extinguishers
 

Originally posted by arw9fmw
CO2, since it is very cold, could possibly damage your turbine. It also leaves a pretty bad mess after you use it.

Mess? That one is new to me. Co2 is a gas- no mess to be made. Maybe he is thinking of dry chemical?

ghost_rider 06-11-2002 07:28 PM

CO2 Fire Extinguishers
 

Originally posted by bkf
You know this is a good question for the new turbine help forum. The reps $.02 on the effects and proper use if it should be needed.
Here you go again. What are you going to call it? CO2 101?

DavidR 06-11-2002 07:31 PM

CO2 Fire Extinguishers
 
FWIW Halon has NOT been banned by the EPA the production of new Halon has. You can still get Halon extinguishers filled with Halon.

David Reid

LUV2FLYRC2 06-11-2002 11:45 PM

Halon Or Co2
 
Hi Guys. I heard that halon and the new halon replacement may hurt the alloys in the turbine. My Jetcat manual recomends a C02 extinguisher. Have a nice Day :)

arw9fmw 06-12-2002 02:26 PM

Fire Extinguishers
 
DavidR is correct in his statement about the EPA and Halon. The EPA has banned the production of the gas. Some is still available on the market. It is becoming increasingly more expensive as the supply decreases. They use what is available to refill or top-off Halon extinguishers in use.

Ken (bfk)and Planecrazy232: Basically CO2 is in a gaseous or liquid state when it is contained in an enclosure (such as a fire extinguisher) under pressure. Once it is released from the extinguisher it creates a heavy white foam which smothers the fire. When vented at the fire the foam can pick up dirt, kerosene, grease and oil, residue from the fire and whatever else is around. The foam dissipates leaving a residue including everything it has picked up. This is where a "mess" can occur. Halon leaves absoutely no residue or mess other than what has burnt.

Luv2flyrc2: If Jetcat says Halon and its replacement may damage the alloys in their turbines then avoid using it. What does the Jetcat manual say about the thermal shock? AMT makes no such statement so I will stay with Halon.

Dry chemical extinguishers would be a very poor choice as would a garden hose. I know a fellow who had a fire and put it out with a garden hose. (Any port in a storm I guess).

Lets hope this is all academic and that no one will need to use a fire extinguisher on their turbine.

Sure would be nice if people would sign their names at the end of their posts.

Planecrazy232 06-12-2002 02:54 PM

CO2 Fire Extinguishers
 
Sorry to disagree, but Co2 leaves absolutely NO residue whatsoever. The white cloud you see is the liquid C02 turning to a gas- nothing else. I use this stuff daily blowing string carriers through conduits (I am an electrical contractor). Besides, the Coke you get from McDonalds or anywhere else would taste kind of funny if there was anything else in the C02 they propel the soda with. Yep, same stuff, just a red container and a diffuser for putting out a fire. Yes, you can blow dirt into your turbine with the large blast of wind from the extinguisher, but sorry again, no residue!!!

Anthony

arw9fmw 06-12-2002 04:10 PM

CO2
 
You certainly know a lot more about CO2 than I do.

I will take your word for it.

Have a nice day!

Traxxas_Tech 06-12-2002 04:50 PM

CO2 Fire Extinguishers
 
Yes, No mess from Co2. As said above, Its only white because its turning from liquid to gas.. It does get VERY cold during that change from liquid... But it disipates as it warms back to temperature. I dont have one, but I think that could damage a Turbine...

Dont know much about HALON though. I dont know why it would damage alloys? Anyone know? :confused:

Bobman 06-12-2002 05:15 PM

MSDS info
 
Here's a link to a listing of MSDS (safety) data sheets on most of the chemicals used in different fire extinguishers.

www.ansul.com/docs/msds/MSDS Table of Contents.pdf

Halon is banned from production mainly because discharging it destroys the ozone layer. I'm not sure why it would cause harm to metals as there really is no residue from it, it simply "blocks" oxygen from the fire. Bottom line though is you'll probably have a hard time coming up with a Halon extinguisher at a reasonable price.

Bob

mr_matt 06-12-2002 05:58 PM

Re: Halon Or Co2
 

Originally posted by LUV2FLYRC2
Hi Guys. I heard that halon and the new halon replacement may hurt the alloys in the turbine. My Jetcat manual recomends a C02 extinguisher. Have a nice Day :)
Hello,

That recommendation relates to cost only, there are no restrictions from the factory about the use of either Halon, Halotron or CO2.

Never ever use dry chemical!!!!

bkf 06-12-2002 06:04 PM

CO2 Fire Extinguishers
 
I think the proper use would prevent thermal shock. To that end im going to attend the next class on how to use them at the local FD. Ill take my jet as an example and let them show me what best to do. (but no squirting :D )

gtmaxx 06-12-2002 06:04 PM

Halon Fire Extinguishers
 
Graingers has the 2.5lb Halotron extinguisher for $84.00.
It would be located on page 2433 of the catalog and is manufactured by Kidde. Mfg. Model# PROPLUS2.5HM.
Grainger Item# 4XP81.
You can get to the grainger site by: www.grainger.com
Just type in fire extinguishers into the search window and take it from there. ;)

bkf 06-12-2002 06:07 PM

Re: Halon Fire Extinguishers
 

Originally posted by gtmaxx
Graingers has the 2.5lb Halotron extinguisher for $84.00.
It would be located on page 2433 of the catalog and is manufactured by Kidde. Mfg. Model# PROPLUS2.5HM.
Grainger Item# 4XP81.
You can get to the grainger site by: www.grainger.com
Just type in fire extinguishers into the search window and take it from there. ;)

What does Halotron or Haylon do that Co2 does not?

gtmaxx 06-12-2002 06:22 PM

Halon and CO2
 
As everyone knows, when CO2 is discharged from the extinguisher the gases propelled to the fire is EXTREMELY COLD!!! I've know guys who got serious frost-bite from being hit indirectly by the CO2.
The concern using CO2 on a turbine is the Thermal shock to the turbine from the extremely cold CO2 gases hitting the possibly very hot metals of the turbine thus causing thermal warping of the internal compontents - turbine wheel etc.
Think of it this way. Have you ever hit a hot piston engine with a cold garden hose - You can causing metal fatigue or cracking because it went from being hot to cold too quick.
Halon isn't near as cold. You don't get the thermal shock from it like you would with CO2. I should know because years back I sold Halon extinguishers. You could get hit by a direct blast of Halon and no frost-bite or tissue damage occurs. The end result is not as much thermal shock to your turbine as the CO2 would do. But, as stated earlier - The halon is being done away with. I had spoke with a fire company a while back about getting Halon instead of CO2. I was told by them that Halon- although you can still get it - was being dicontinued because it was a carcinogen (Cancer causing) agent. I didn't pursue the matter any further. For all I know they could have been choking my chain. As I haven't seen the number of Halons available as I used to - I could only assume that they were on the square with me.

Todd Walters

bkf 06-12-2002 06:35 PM

CO2 Fire Extinguishers
 
Thank you :)

six shooter 06-12-2002 11:30 PM

CO2 Fire Extinguishers
 
Any gas discharged from a compressed state to atmospheric pressure gets cold, this includes Halon, propane, air, etc...

Conversely, when you compress any gas, it gets hot.

The benefit from Halon is for given volume of gas, it's more effective against a fire in controlled environment, i.e. indoors. Halon, and CO2 are basically ineffective when materials catch on fire outdoors, i.e. fiberglass, dry grass, etc... don't waste your extinguisher on these types of fires, only water will do. Let it burn, it's going to burn anyway whether you discharge your extinguisher or not. we learned this the hard way.

bkf 06-12-2002 11:54 PM

CO2 Fire Extinguishers
 
That is what I was wondering about. A fire guy in the middle of a bad situation is not to worried thermal shock. He wants to get it out safe and fast.

bkf 06-12-2002 11:59 PM

CO2 Fire Extinguishers
 
John: Off topic: What do you use to clean up the roo body. Mine is getting a little grimy in spots.


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