Overfilling and life expectancy. (LP Tanks)

[Wookie]

I know plenty of guys that fill their lp's to 4500 psi. I wouldn't do it, but I've never heard of a cylinder fail hydro because of overfilling, and I've never heard of a steel explode at less than 11,000 psi. Go for it.

 

[p1p]

jeff LDS is not going to say anything but the stamped psi for there own safety.

I have filled both LP & HP and hydro's pass, if it does not then rust might be a contributor. Check your tanks for vip more often then a year, easy enough right, there is no cost.

like anything else once you do it, it ain't nothing but a thing.

And what I do is if say LP 2400 I fill to 3000 then let it cool then pump desired, let it cool and top last time. in other words do not heat tank to desired PSI.

thx, that was my plan, slow fill to 3k, then let cool overnight. Top off next day. Heat and overfilling is obviously a bad thing.

 

[irishsquid]

... the engineers who established the standard for the cylinder.

I'm guessing the engineers may have had a gaggle of lawyers who helped set a CYA standard. I also suspect, as has been mentioned, the burst disk should go well before the tank.

 

[ajduplessis]

I am a firm believer that if you look for somethig long enought you tend to find it.

If you hugely overfill cylinders on regular basis you are likely to find out eventualy how they will last. I have loved ones around me and is not willing to take any chances no matter how remote.

 

[Leadking]

I'm guessing the engineers may have had a gaggle of lawyers who helped set a CYA standard. I also suspect, as has been mentioned, the burst disk should go well before the tank.

The manufacturers' lawyers do not set the standards, the DOT does. If consistently overfilling cylinders were completely safe, why aren't they rated higher? And if they were, you'd still be overfilling them!

 

[VooDooGasMan]

Actually jeff just an hour is the most needed to cool down in our weather conditions, and where you store is part of that decision, I assume you have a pressure checker, and get a transfill whip also. there is so many combo's of filling, fast and cool, then top off.

 

[Leadking]

I know plenty of guys that fill their lp's to 4500 psi. I wouldn't do it, but I've never heard of a cylinder fail hydro because of overfilling, and I've never heard of a steel explode at less than 11,000 psi. Go for it.

According to PSI more steel cylinders have failed than alumium.

 

[redacted]

The manufacturers' lawyers do not set the standards, the DOT does. If consistently overfilling cylinders were completely safe, why aren't they rated higher? And if they were, you'd still be overfilling them!

This one is easy - because the DOT standards do not permit it. There is no conflict here. DOT standards are permitted to prohibit the perfectly safe. That is, that type of error is acceptable. Permitting the unsafe is the unacceptable failure.

And people are overfilling them. And related accidents are somewhere between hard and impossible to find.

 

[Wookie]

According to PSI more steel cylinders have failed than alumium.

Learn something new every day. Maybe they should talk about that instead of continuously talking about neck cracks.

 

[DepthCharge]

According to PSI more steel cylinders have failed than alumium.

Is that %wise or actual #s?