Are all 19/32-18 ball-lock posts the same?

[ThorGodOfThunder]

I need to replace the ball-lock posts on my corny keg. I've determined that they are 19/32-18. A pair is on sale here but the Q/A section says they'll only work on kegs that originally had pin-locks. I don't know what mine originally had, I just know that they were ball locks when I got them.

Can anyone clear this up for me? I always assumed that all 19/32-18 posts will work on any keg with matching threads, but maybe I'm wrong?

 

[PlinyTheMiddleAged]

Chi Company sells these nipples:
http://www.chicompany.net/index.php?main_page=product_info&cPath=376_1_3_260&products_id=3276

It says that both pin lock and ball lock posts fit them. It's not clear to me why those posts would only fit pin lock nipples. If ball lock and pin lock posts fit one kind of nipple, why would those posts only fit a nipple on a pin lock keg.

But this is from a guy who doesn't know anything about pin locks.

 

[ThorGodOfThunder]

That makes sense. The only difference I can imagine is if the nipple is slightly taller/shorter and the poppet would then need to be slightly shorter/taller to compensate.

Can anyone with a little more hands-on knowledge point me in the right direction?

 

[day_trippr]

That makes sense. The only difference I can imagine is if the nipple is slightly taller/shorter and the poppet would then need to be slightly shorter/taller to compensate.[...]

Because there's a flange with an o-ring under it when you screw on the post, the height of the threaded riser isn't very important. The post will bottom against the diptube flange and compress the o-ring beneath, sealing everything together. So the riser can't penetrate the post any more even if it was a foot in length.

The poppet length is dictated by the post, not the threaded riser length...

Cheers!