Storing filled tanks in truck

[Dnaber]

Planning a trip to WPB next month (I live in Jacksonville) and I'm taking both my steel tanks. Both will be filled to 3450, One is a year old and the other will need it's first hydro after I get back. I will be leaving right after work and plan to travel directly from work. My question is should I be concerned about the heat in the truck over heating the tanks and possibly bursting a disk. I do have the option of placing the tanks in the bed of the truck as it is covered or I could maybe bring them into the office if that would be the safest thing to do.

 

[tbone1004]

highly unlikely. It is best to leave them out of direct sunlight, but if they're filled to 3450 at 70f, if it gets up to 120 inside the truck they'll get up to 3800psi. Hydro pressure is over 5000pi, burst pressure even higher than that. Burst discs will be either 4500, or 6000. Even if it gets to 200F in the car, the tanks would have to be 3450 at 50F to hit the burst disc pressure. They aren't going to be at that pressure when it is that cold, nor will the car get that hot. Max average temp in cars is around 140, if the tanks are filled at 70 which is highly unlikely, they'll only hit 3900psi at 140. The bigger danger is to you if you have to touch them than the tanks having issues.

Aluminum tanks are cause for a bit more concern, but on steels I wouldn't worry about it. Truck bed with a tarp over them is fine for this.

 

[Superlyte27]

Depends on what burst disks you have in your tanks and the age/condition of those disks. I can tell you with my steel tanks, there's no chance the burst disks will burst just from sitting in the back of a truck.

Someone can do the math, but I've left tanks sitting in my trunk for weeks here in FL with no issues.

 

[tbone1004]

Pete, that's probably because the burst discs are too afraid of your wrath to actually burst

OP, seriously, non issue. I like to keep the bottles out of direct sun, but most of my steel bottles are black, so under a tarp they go if they're in the bed. The heat is a nonissue for steel tanks, it doesn't get hot enough for it to matter, and they will have minimum 4500psi burst discs

 

[Dnaber]

Thanks guys!!!!