Broken Tank Valve + Regulator hose

[WarrenZ]

That's what I was thinking but a strange failure mode all the same.

 

[halocline]

I wonder what would happen if you managed to break the seat loose from the plug assembly. That part would be replaced in a service.

Interesting idea. I would think that if anything, the loose seat might prevent air from coming out of the tank by getting stuck on the orifice, but not prevent air from entering the tank. The pressurized air from the whip would push the broken seat off the orifice, don't you think?

 

[redacted]

Interesting idea. I would think that if anything, the loose seat might prevent air from coming out of the tank by getting stuck on the orifice, but not prevent air from entering the tank. The pressurized air from the whip would push the broken seat off the orifice, don't you think?

Loose seat seals the tank when the valve is closed. Pressure in the tank pushes the seat away from the orifice when the valve is open. On filling, pressure from the whip is greater than pressure in the tank so it drives the seat into the orifice making a seal.