Question Is there a high pressure version of LP50's?

[SouthernSharktoothDiver]

@Nick_Radov @jstotz I'm by no means an expert on the subject, but I did study engineering in college, and we had more than few classes on the subject of "what happens if you push on something really, really hard." I've also done some research on the DOT standard for AL 80's. In a nutshell, the standard is what it is because that's the maximum amount AL 80's can reliable, sustainable survive cyclic, repeated loading. In all likelihood, one instance wouldn't hurt anything, but repeatedly, it would weaken the tank and, as Nick said, cause it to fail hydro.

My (former) fill guy overfilled a set to 4000 psi. That, combined with his defensive response about it and his general lack of seeming like he knew what he was doing, is why he is no longer my fill guy, even though I'm now paying twice as much. Yeah, it's painful, but I like my gear to work, and not explode. I'm already more than a little concerned about the damage he might have done, since those tanks were full to that point for nearly 3 months, but what's done is done, and anyway I'm telling myself that since it was a single instance and not cyclical, it will hopefully be fine.

 

[OTF]

Don't overfill aluminum tanks! Well, maybe by like 10%, but you cannot safely "cave fill" aluminum like you can steels.

 

[grantmac]

Look at the wall thickness of a 3AA steel vs aluminum. The aluminum tank is engineered for very little flex throughout the pressure cycle because the material cannot handle flex.
Steels are thin and do flex.

This is why springs aren't made of aluminum.

 

[happy-diver]

My (former) fill guy overfilled a set to 4000 psi. That, combined with his defensive response about it and his general lack of seeming like he knew what he was doing, is why he is no longer my fill guy, even though I'm now paying twice as much.

Excellent relationships can be had from situations such as these least the healthier pocket
Befriend the guy have a beer ingratiate yourself with the shop, and prevent overfills again

I'm already more than a little concerned about the damage he might have done, since those tanks were full to that point for nearly 3 months,

did you sack the guy that didn't check his fills too

 

[SouthernSharktoothDiver]

@happy-diver His response was evidence enough that he didn't wanna be friendly about it. As for checking them, oddly enough, I did. Turns out the gauge I was using only went up to 3600 (the numbers went higher, but I checked at the specs on the gauge itself said it only went that high), so I bled off some air and called it a day at what should've been 3400. Came back 3 months later to them at 4000. I'll admit I should've used a better pressure gauge, but also, my tanks should've never been at 4000 to begin with. I'm not buying that guy a beer, I'm accusing him of being drunk while doing my fills.