Found this interesting......

[texdiveguy]

http://www.youtube.com/watch?v=9lw_fhNAIQc

 

[letterboy]

 

[AXL72]

yeah...oxidyzer would be expected to do something like that:shakehead

 

[DA Aquamaster]

Apparently he never heard of friction or realized just how much force and friction are involved in removing a valve from a full tank.

 

[AXL72]

well....key word is "contents"

going into details....specifically....."oxidizer"


lessons learned?

Maybe:

fill the tank with nitrogen before attempting to diassemble the parts?

displace all gas with water before attempting to disassemle the tank?

realize that someone could have used flamable type grease on the threads, despite the fact that the tank was labeled an oxidizer?

Perhaps oxidizer and steel (threads) is a dangerous mix at elevated temperatures such as those that might develop due to ftricton?

or...jsut don't even thing about taking the bloody thing apart in the first place?

 

[rjack321]

well....key word is "contents"

going into details....specifically....."oxidizer"


lessons learned?

Maybe:

fill the tank with nitrogen before attempting to diassemble the parts?

displace all gas with water before attempting to disassemle the tank?

realize that someone could have used flamable type grease on the threads, despite the fact that the tank was labeled an oxidizer?

Perhaps oxidizer and steel (threads) is a dangerous mix at elevated temperatures such as those that might develop due to ftricton?

or...jsut don't even thing about taking the bloody thing apart in the first place?

Actually it was an Aluminum cylinder and AL is a combustible metal. And the valve would not let gas out according to the narrative. Filling the cylinder slightly with an inert gas as might have loosened the stuck parts in the valve allowing it to operate properly. Then drain the gas properly before attempting to disassemble it.

 

[AXL72]

ahhh, very true....aluminum dust....not aluminum itself, is flamable.

If the valve would not allow discharge or fill of gas...then lesson learned = dispose of tank

I think the keyword is oxidizer.

if the aluminum was the main cause, would aluminum tanks be allowed to be used for oxidizers?

 

[james croft]

ahhh, very true....aluminum dust....not aluminum itself, is flamable.

If the valve would not allow discharge or fill of gas...then lesson learned = dispose of tank

I think the keyword is oxidizer.

if the aluminum was the main cause, would aluminum tanks be allowed to be used for oxidizers?

Yes. Aluminum can be used.

 

[AXL72]

thank u james...therefore, the twisting moion either caused aluminum powder or shavings or dust, which as mr. rjack correctly pointed out (ie hindenberg), is very flamable, especially in the pressence of an oxidizer....

or

someone greased the threads, and should not have


all I know is, the loss of the guy's arm is gutwrenching

 

[Hoosier]

Quick question: How can I download the clip?

Thanks in advance,