Keg Posts Seal Flaw

[devils4ever]

I have a Corny keg that has been leaking. So, I decided to replace all the O-rings. As I was doing this, I realized there is a flaw in the sealing system.

There is an O-ring between the top of the keg and the bottom of the dip tube. Fine. But, when you screw the posts on, there is a metal-to-metal contact between the top of the dip tube and the bottom inside of the post. There is no rubber gasket or seal here. This seems like a flaw to me. Am I missing something?

 

[Bobby_M]

The downward pressure on the diptube bulges the oring outward to seal against the inside if the post. Every keg on earth is like that.

 

[hezagenius]

I've always wondered about that, too. I knew that it worked and didn't leak but the metal on metal contact seemed like it should leak to me. Thanks @Bobby_M .

 

[devils4ever]

The downward pressure on the diptube bulges the oring outward to seal against the inside if the post. Every keg on earth is like that.

Bobby,

Yes, that makes sense. Thanks for clearing that up!