o2 fire

rdmmdr · 29th December 2006, 08:39

lure has asked about my major o2 fire that i had, so i thought that i would post what happened. Build "death trap one" the first home built rebreather that i built. it used mk20 reg for the o2 side, o2 cleaned and a used spg for tank pressure. I had been bench testing it for about one week when the thing caught on fire in the garage. Throw it out of the garage and call the fire dept. Needless to say there was not a lot to look at after the fire. So what caused the fire. It is my belief that burrs on the piping caused the heating to ignition point, and initiated the fire. My fault. Secondary cause could have been spg contamiation. So how do we avoied this in the future?

Use only o2 compatable regs.
spg are to assumed to contaniated, if not new and certified
deburr a piping
and all homebuilts should be tested in to back forty, for saftey

i currently have a set of fire fighter turnouts, just for testing.

rick

paulraymaekers · 29th December 2006, 10:18

Quote: (Originally Posted by rdmmdr)

lure has asked about my major o2 fire that i had, so i thought that i would post what happened. Build "death trap one" the first home built rebreather that i built. it used mk20 reg for the o2 side, o2 cleaned and a used spg for tank pressure. I had been bench testing it for about one week when the thing caught on fire in the garage. Throw it out of the garage and call the fire dept. Needless to say there was not a lot to look at after the fire. So what caused the fire. It is my belief that burrs on the piping caused the heating to ignition point, and initiated the fire. My fault. Secondary cause could have been spg contamiation. So how do we avoied this in the future?

Use only o2 compatable regs.
spg are to assumed to contaniated, if not new and certified
deburr a piping
and all homebuilts should be tested in to back forty, for saftey

i currently have a set of fire fighter turnouts, just for testing.

rick

hello rick,

did the ignition take place when you openend the valve??
if so, did you open the valve quickly or slow?

regards
paul

Fort Collins Bob · 29th December 2006, 15:41

What was going through your mind when the thing went off?

Any Pictures?

mik · 29th December 2006, 21:20

Quote:

i currently have a set of fire fighter turnouts, just for testing.

better safe than sorry!

What (if anything) did you use to clean the gear?

**jepuskar** · 29th December 2006, 22:53

I've heard you will be warmer while using a rebreather, but that is just ridiculous.

rdmmdr · 30th December 2006, 04:47

I lost the pics years ago but i think the only thing that went through my mind was there goes the deposit on this place. cleaner was simple green i have never had a problem since so? It happened upon tank opening but i always just crack the valve. Had the cover on it so i could never determine the start location. I suspect due to the remote spg and ss piping the problem has there. which is why i don't use used hoses or used spgs anymore.

rick

29th December 2006, 08:39	#1 (permalink)
rdmmdr designer of death Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Mar 2006 Location: kerman,california Posts: 372	o2 fire lure has asked about my major o2 fire that i had, so i thought that i would post what happened. Build "death trap one" the first home built rebreather that i built. it used mk20 reg for the o2 side, o2 cleaned and a used spg for tank pressure. I had been bench testing it for about one week when the thing caught on fire in the garage. Throw it out of the garage and call the fire dept. Needless to say there was not a lot to look at after the fire. So what caused the fire. It is my belief that burrs on the piping caused the heating to ignition point, and initiated the fire. *My fault.* Secondary cause could have been spg contamiation. So how do we avoied this in the future? Use only o2 compatable regs. spg are to assumed to contaniated, if not new and certified deburr a piping and all homebuilts should be tested in to back forty, for saftey i currently have a set of fire fighter turnouts, just for testing. rick
(Offline)

29th December 2006, 10:18	#2 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,508	Re: o2 fire Quote: (Originally Posted by rdmmdr) lure has asked about my major o2 fire that i had, so i thought that i would post what happened. Build "death trap one" the first home built rebreather that i built. it used mk20 reg for the o2 side, o2 cleaned and a used spg for tank pressure. I had been bench testing it for about one week when the thing caught on fire in the garage. Throw it out of the garage and call the fire dept. Needless to say there was not a lot to look at after the fire. So what caused the fire. It is my belief that burrs on the piping caused the heating to ignition point, and initiated the fire. *My fault.* Secondary cause could have been spg contamiation. So how do we avoied this in the future? Use only o2 compatable regs. spg are to assumed to contaniated, if not new and certified deburr a piping and all homebuilts should be tested in to back forty, for saftey i currently have a set of fire fighter turnouts, just for testing. rick hello rick, did the ignition take place when you openend the valve?? if so, did you open the valve quickly or slow? regards paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
(Online)

29th December 2006, 15:41	#3 (permalink)
Fort Collins Bob Always Learning. Current Rebreather/s: Ouroboros Other Rebreather/s: Join Date: Apr 2006 Location: Fort Collins Colorado Posts: 112	Re: o2 fire What was going through your mind when the thing went off? Any Pictures? __________________ Best Regards all ------------------------------------------- Bob Fridell Ouroboros #46 Fort Collins, Colorado
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29th December 2006, 21:20	#4 (permalink)
mik New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Sep 2006 Location: Sydney North Posts: 75	Re: o2 fire Quote: i currently have a set of fire fighter turnouts, just for testing. better safe than sorry! What (if anything) did you use to clean the gear? __________________ It just fell apart in my hands, Chief!
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29th December 2006, 22:53	#5 (permalink)
jepuskar NA Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Aug 2005 Location: Chicago, IL Posts: 397	Re: o2 fire I've heard you will be warmer while using a rebreather, but that is just ridiculous.
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30th December 2006, 04:47	#6 (permalink)
rdmmdr designer of death Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Mar 2006 Location: kerman,california Posts: 372	Re: o2 fire I lost the pics years ago but i think the only thing that went through my mind was there goes the deposit on this place. cleaner was simple green i have never had a problem since so? It happened upon tank opening but i always just crack the valve. Had the cover on it so i could never determine the start location. I suspect due to the remote spg and ss piping the problem has there. which is why i don't use used hoses or used spgs anymore. rick
(Offline)

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