low pressure steel 125

[Soggy]

At what point does the burst disk come into play? Do they change out the valve to a HP valve for that? I thought the threads were different on the neck. Sorry. Don't mean to hijack here but this just seems extreme to me. I guess I can stop feeling like I'm doing something wrong when I get a fill to almost 3000psi in my LP95 eh?

Most of the people that jack up their tanks that high replace the burst disks with either a stainless steel disk (won't burst) or double disk the tanks (also won't burst). I don't believe the necks are any different and there is no significant difference in the steel between a HP and LP tank. However, you'd definitely want a 300 bar DIN valve, since 4000 psi = ~270 bar. Steel tanks are rated to something like 10,000 cycles @ 5000+psi. I've never heard any reports of steel tank exploding. Aluminum, on the other hand, is not a good idea to overfill.

3000 psi is nothing to worry about in a LP95. Even us northerners get fills like that if you know the person filling the tanks.

 

[Sideband]

Most of the people that jack up their tanks that high replace the burst disks with either a stainless steel disk (won't burst) or double disk the tanks (also won't burst). I don't believe the necks are any different and there is no significant difference in the steel between a HP and LP tank. However, you'd definitely want a 300 bar DIN valve, since 4000 psi = ~270 bar. Steel tanks are rated to something like 10,000 cycles @ 5000+psi. I've never heard any reports of steel tank exploding. Aluminum, on the other hand, is not a good idea to overfill.

3000 psi is nothing to worry about in a LP95. Even us northerners get fills like that if you know the person filling the tanks.

Thanks. I did not know that, obviously. I will now return you all to our regularly scheduled thread.

Joe

 

[Don Burke]

I can get the tanks at $150 for two or $100 for one, they need to be hydroed and they need valves, either k or something else. With the valves I am lost as to which one to go with. What do you think? I appreciate your insight and comments.

If you decide not to get them, let me know and I will jump at the chance.

 

[DepthCharge]

they're a ***** on land but dive well. you can jam 160 cuft into them (spare me the flames...). If it gets too cumbersome, you can banish it to O2 service, get a transfill whip and pp blend your own trox (providing you can find a shop that will top-off)
if the price is right....
ps. get an H-valve

I used to cram 180cf into the LP 125's...........steel will take it, aluminum will not.