Author Topic: Sealing ball lock keg with pin lock fitting  (Read 183 times)

Offline goschman

  • Brewmaster General
  • *******
  • Posts: 2336
    • View Profile
Sealing ball lock keg with pin lock fitting
« on: May 24, 2016, 04:17:57 PM »
I brewed a beer for my buddy who is going to give me a ball lock keg to fill. I have a pin lock system and am wondering if I can at least seal/purge the keg after it is filled by pushing it on in bursts. This way I can store it decently before he gets the keg.
« Last Edit: May 24, 2016, 07:38:15 PM by goschman »
On Tap/Bottled:                       
Kolsch / Mexican Vienna / Asian Lager / XPA #5 / Baltic Porter / LeRye Golsch
              
Fermenting: American Extra Bitter
Up Next: Summer Ale, Pale Lager, XPA #6: Comet/Cascade/Ahtanum

Offline rjharper

  • Brewmaster
  • *****
  • Posts: 638
    • View Profile
    • Angry Scotsman Brewing
Re: Sealing ball lock keg with pin lock fitting
« Reply #1 on: May 25, 2016, 12:37:49 PM »
Do your pin lock disconnects have barbs or MFL connections? Could you borrow a gas disconnect from him and switch out? Even if it's barbs, it will only cost you ~2" of gas line to cut off and switch out a couple of times.
Ross
Red Earth Brewers (Oklahoma City, OK)
Tippecanoe Homebrewers Circle (West Lafayette, IN)

Angry Scotsman Brewing
http://www.angryscotbrew.com
http://www.facebook.com/angryscotbrew
http://www.twitter.com/angryscotbrew

Offline stpug

  • Brewer
  • ****
  • Posts: 266
    • View Profile
Re: Sealing ball lock keg with pin lock fitting
« Reply #2 on: May 25, 2016, 02:43:28 PM »
Warning, I've never tried on a ball lock keg...

On the pin lock disconnect, just above the free-spinning collar (the collar has the grooves for the pins) there is a snap-ring in a groove that keeps the collar from sliding up.  Using something, get the snap-ring out of the groove so the collar can slide up.  You should then be able to slide the disconnect on and off the ball lock post and seal/purge the keg. I use the method for pushing gas through the liquid line of my kegs sometimes.  But, like I said, I've never tried on a ball lock keg but the post diameter should be the same and a pin lock disconnect should be more shallow than a ball lock disconnect which will enable it to engage the poppets.

Offline stpug

  • Brewer
  • ****
  • Posts: 266
    • View Profile
Re: Sealing ball lock keg with pin lock fitting
« Reply #3 on: May 25, 2016, 02:55:54 PM »
Just checked a ball lock disconnect diameter and pin lock disconnect diameter.

Ball lock is 16.5mm
Pin lock is 16.75mm

So, a pin lock disconnect will definitely fit on a ball lock post and being more shallow will allow it to engage the poppet.  The question will be about the o-ring sealing well enough - that I don't know.

Offline goschman

  • Brewmaster General
  • *******
  • Posts: 2336
    • View Profile
Re: Sealing ball lock keg with pin lock fitting
« Reply #4 on: May 25, 2016, 02:56:35 PM »
Do your pin lock disconnects have barbs or MFL connections? Could you borrow a gas disconnect from him and switch out? Even if it's barbs, it will only cost you ~2" of gas line to cut off and switch out a couple of times.

They are not barbs. I will see if he has an extra ball lock disconnect that I can swap out temporarily.
On Tap/Bottled:                       
Kolsch / Mexican Vienna / Asian Lager / XPA #5 / Baltic Porter / LeRye Golsch
              
Fermenting: American Extra Bitter
Up Next: Summer Ale, Pale Lager, XPA #6: Comet/Cascade/Ahtanum

Offline goschman

  • Brewmaster General
  • *******
  • Posts: 2336
    • View Profile
Re: Sealing ball lock keg with pin lock fitting
« Reply #5 on: May 25, 2016, 02:57:26 PM »
Just checked a ball lock disconnect diameter and pin lock disconnect diameter.

Ball lock is 16.5mm
Pin lock is 16.75mm

So, a pin lock disconnect will definitely fit on a ball lock post and being more shallow will allow it to engage the poppet.  The question will be about the o-ring sealing well enough - that I don't know.

Thanks. I will give it a shot and try to remember to update afterward which will be more than a week after I dry hop.
On Tap/Bottled:                       
Kolsch / Mexican Vienna / Asian Lager / XPA #5 / Baltic Porter / LeRye Golsch
              
Fermenting: American Extra Bitter
Up Next: Summer Ale, Pale Lager, XPA #6: Comet/Cascade/Ahtanum