@whitequark I think you mistake pressure. Anything over 200 bar is inherently hazardous. Believe me I know I boost AVO. It’s not rupturing that’s the hazard it’s auto ignition from Adiabatic effect. The heat from compression explodes it. Any dirt, dust or incompatible lubes or orings is instant death.

Very few tanks are above 200 bar to get 400 bar is insane. My hardcore bank gas tank goes to 400 bar. My compressor goes to 350 bar for a commercial dive compressor. I think you’re mistaking pressures of what’s reasonable for humans to mess with.

Also consider inside the swim bladder there is no condition that leads to contamination that can cause auto ignition. That’s not how that works.

Yes it’s cool what they do but two entirely different processes are at work that generate the hazard.

If you can buy 400 bar AVO. You better run if you open that valve. Not even nasa is that crazy.