Tank explodes in Madrid

[SlartyBartFast]

This is one reason I avoid the cheapie aluminium tanks in favor of carbon fiber tanks - the carbon fiber tanks won't send metal fragments into your hand if they fail.

You do know that on the inside fiber wrapped tanks are aluminum. Right?
If it explodes fragments of aluminum and fiber are going everywhere.
Plus, breathing in fiber dust is REALLY bad for your lungs.

A tank rupture might not cause as much of a bottle rocket, but chances are you'll have a large mass of bottle/regulator flying off in one direction or another.

Tank fragmentation vs. Regulator rupture?
Regulator rupture will be less likely to kill the person holding the marker. The unlucky sod in the way will be killed. Or in the case of Millenium, everone lucks out and nothing is in the way....
Tank fragmentation. People in the immediate vicinity WILL be injured.

[Beemer]

http://www.pbnation.com/showthread.php?p=23008841#post23008841

http://www.pbnation.com/showthread.php?p=22804306#post22804306

http://www.p8ntballer-forums.com/vb/showthread.php?t=64031&page=4

http://img130.imageshack.us/img130/4738/madrid0574lv.jpg

This is the reply I got trying to find out what the flash would be at 3000psi for 3in1.
Started with a phone call and ended with this cyber message.

"Thank you for contacting WD-40. We have no information on this question and am sorry to say that we can't assist you. I would not suggust using our products for your application.

Please feel free to contact me with any questions and concerns that you have about any of our products.

Best regards,
First, Last
Title"

Still had to have heat, just how much?

How would you define a slam? I would say any fill that drops pressure from the max output of the fill. If you stop with a 4500 fill and two minutes more or less later you are less then 4500, then you got to much heat and droped pressure after cooling. Not a full[good] fill but a slam.

Seems it could have been a Stako tank.

[Surestick]

As Slartybartfast said:

Just remember that "heat" is still present even when at 1 degree above absolute zero.

To a certain extent pressure & heat are interchangeable - think ice melting at below freezing temps from the pressure applied by the blade of a skate.
If oil is igniting due to the extra heat from a rapid fill then they are right on the ragged edge with a slower fill, especially on a hot day in the sun.
Also do we know what pressure this happened at? Could have been halfway through the fill.

It is nice to see that the failure mode of the tank means minimal shrapnel, it could have grenaded. I wonder if the burst disk even went off or if the pressure rise was too sudden?

[Lohman446]

Ohh... I wonder if that will influence pending DOT approval of those tanks in the US (I heard rumor)?

[Temo Vryce]

Diesel truck cylinder pressure:
A quick search on google found a web site that referred to the presure in the cylinder of thier Diesel engine as being about 130 PSI max, before ignition. Here. The average cylinder of a big rig is the size of a 2 litre pop bottle. Put an air/fuel mixture in there and rapidly force the piston down so that it is with 1/8" of the other side of the cylinder. The volume is quickly reduced by a factor of about 500 - 1000.

When dealing with atomised explosives, the tighter the seal the bigger the bang.

This incident is unfortunate and resulted from a couple of mistakes. The 2 big ones being Oil in the fill nipple and flash filling.

What I would like to know and no one has bothered to ask is who's fill station was this person using? The fields or thier own? Some people here have blamed the field/staff but if this was the player's own fill station how can you blame the field?

[jsdatjsd]

Why is flash filling bad?

I mean, if someone wants to strip off their clothes before they fill my tank ,who cares? I'll just turn my back.

[magman007]

You do know that on the inside fiber wrapped tanks are aluminum. Right?
If it explodes fragments of aluminum and fiber are going everywhere.
Plus, breathing in fiber dust is REALLY bad for your lungs.

A tank rupture might not cause as much of a bottle rocket, but chances are you'll have a large mass of bottle/regulator flying off in one direction or another.

Tank fragmentation vs. Regulator rupture?
Regulator rupture will be less likely to kill the person holding the marker. The unlucky sod in the way will be killed. Or in the case of Millenium, everone lucks out and nothing is in the way....
Tank fragmentation. People in the immediate vicinity WILL be injured.

no, im sure Chris Raehl, the cppa founder, and the APPA doesnt know this....

[Recon by Fire]

Tanks explode in Baghdad too... not from flash filling though.

[Beemer]

Tanks explode in Baghdad too... not from flash filling though.

But from what then?


What the heck is this?

Matty Marshall recaps with pro players Yosh Rou, Alex Fraige, Davey Williamson, Nicky Cuba and Rusty Glaze.

These guys are Pros? They made ONE good point at the end.

http://home.comcast.net/~beemerone/TankExplodes.mp3 Three minute excerpt. 2.7meg

What I would like to know and no one has bothered to ask is who's fill station was this person using? The fields or thier own?

It wasnt his own. H-Pac was doing the fills for the event.

Oh, I wonder, will that influence pending DOT approval of those tanks in the US? (I heard rumor)

Maybe its not rumor.

[SlartyBartFast]

no, im sure Chris Raehl, the cppa founder, and the APPA doesnt know this....

Do I detect sarcasm?

And what exactly do any of those prove with reagards to air system knowledge?

I'll leave Chris Raehl to defend himself. Unless he responds to my post himself, and judging from his earlier post, I can only assume he doesn't know.

[magman007]

the fact that he has been in the industry longer than you can imagine, and that any idiot in paintball knows that fiber wrapped tanks have a soft, aluminum core.

and if you dont know...

the CPPA is the Coligiate Paintball Players Assoc.

snd the APPA

is the American Paintball Players Assoc.
appa also runs the id system for the PSP, CFOA, and many other series. IM sure he is around the sport more than enough to know about fiber wrapped tanks.

[Lohman446]

the fact that he has been in the industry longer than you can imagine, and that any idiot in paintball knows that fiber wrapped tanks have a soft, aluminum core.

and if you dont know...

the CPPA is the Coligiate Paintball Players Assoc.

snd the APPA

is the American Paintball Players Assoc.
appa also runs the id system for the PSP, CFOA, and many other series. IM sure he is around the sport more than enough to know about fiber wrapped tanks.

Seriously, gonna have to red flag you on this one man. Those all prove he knows a lot about the administration of a league. And well assuming he knowns a lot about the technology may very well be accurate, those are certainly not proof of it.

[SlartyBartFast]

IM sure he is around the sport more than enough to know about fiber wrapped tanks.

Well smart guy, read the part I quoted.

Rael seems to think there is a difference between cheap aluminum and fiber wrapped....

[Beemer]

Well if it was a Stako tank, its a plastic wrap or something aint it.

http://www.paintball.info.pl/

[SlartyBartFast]

Well if it was a Stako tank, its a plastic wrap or something aint it.

All composite tanks are built using a metal tank, wrapped with fiber and resin.

So, define "plastic". Plastic encompasses many different resins. The fiber can be one of numerous substances, a popular one being carbon.