Corny keggs and explosion

[Gusizhuo]

So, at around 30 Psi when carbonating beer and 5 Psi after that, how much of a chance is there really for a corny to explode? That sounds like a pretty low pressure to me, but then I am comparing to the kind of pressure that goes into a SCUBA tank.

I ask this because I am thinking about getting a kegging system going here. By "here" I mean Taiwan, which means I need to get this thing from parts. I have found some guys who have old cornys, but they truly are old. And I notice, when you buy a kegging system in the States the cornys come "tested and rated" or whatnot, I assume for holding content under pressure.

So, if I do get one that has not been rated, what is the danger, really.

 

[Yuri_Rage]

They're rated to 100+ psi, and they have a safety valve. 30 psi is fine.

 

[Fingers]

30 psi is a common pressure used to seat o-rings or to force carb. Unless there is a serious defect you won't experience any problems. Even if there was a weak spot, I don't think 30 psi would explode. It would just leak out.

 

[rohanski]

I scuba with corny kegs.

 

[Funkenjaeger]

I scuba with corny kegs.

Fill one with beer, one with air, you've got everything you could need!

But seriously, cornys have overpressure release valves anyway, I think they're designed for something like 130PSI. In other words there is nothing to worry about, even when force carbing at 30PSI or so.

 

[jrpark22000]

My keg lids are stamped with; do not operate at pressures above 130psi. You will be very safe with 30+ psi.

 

[Kubed]

I scuba with corny kegs.

=best diving trip ever

 

[malkore]

yep, 130psi is what corny kegs are tested to. above that and the safety valve will start to vent.

honestly, you have more to worry about with the CO2 cylinder. you never wanna leave them in the hot sun, or in a hot car. they'll exceed their pressure rating and blow a safety valve, dumping hundreds of cubic feet of CO2. in an enclosed space that'll quickly asphyxiate you, or in a room it can knock out anyone/thing low to the ground.
A few guys have mentioned sticking their heads into their keg freezer and losing their breath, due to leaky CO2, or a few batches of lagers going.

 

[jrpark22000]

honestly, you have more to worry about with the CO2 cylinder. you never wanna leave them in the hot sun, or in a hot car. they'll exceed their pressure rating and blow a safety valve, dumping hundreds of cubic feet of CO2. in an enclosed space that'll quickly asphyxiate you, or in a room it can knock out anyone/thing low to the ground.
A few guys have mentioned sticking their heads into their keg freezer and losing their breath, due to leaky CO2, or a few batches of lagers going.

Even watch out when cleaning and purging a few keg at the same time. The blow off from purging can build up on the florr of smaller rooms and if you bend down to long... :cross: Also be careful of smelling the inside of kegs after purging...I learned that one the hard way one day and will not forget that lesson.

 

[david_42]

The only time I've seen cornies fail has been when they freeze. The relief valves work fine, as many people who have tried CO2 injectors have found out.