is there a ball lock coupler...

[Maylar]

... That would allow connecting a liquid QD and gas QD together? It'd be for using CO2 to blow out a liquid line without needing an empty keg.

 

[Gravitysucks]

Something like this?
https://www.brewhardware.com/product_p/ball_lock_jumperpost.htm

Edit: looks like BobbyM is out of stock but these folks also carry them.
https://www.kegerators.com/equipment/ball-lock-cleaning-post-jumper/

 

[day_trippr]

That's made for a pair of liquid QDs...

Cheers!

 

[kiwipen]

Or you could build one, but it'll cost way more.

One of many ways to do so:
Gas post > 19/32" -18 Thread to FFL > MFL to MFL (shank or bulkhead)> 19/32" -18 Thread to FFL > liquid post.


How about using a carbonation cap on a soda bottle? Some of those can be used with both a gas and a liquid QD.

 

[Gravitysucks]

That's made for a pair of liquid QDs...

Cheers!

Sorry, at the beginning of Bobby's description it says -
"This custom made fitting allows you to connect a liquid or gas ball lock coupler/disconnect to both sides."
I didn't notice the note at the end saying for liquid QDs only.

 

[Maylar]

Sorry, at the beginning of Bobby's description it says -
"This custom made fitting allows you to connect a liquid or gas ball lock coupler/disconnect to both sides."
I didn't notice the note at the end saying for liquid QDs only.

Yeah, I saw that too. If either gas or liquid QC's would fit, it'd be perfect.

 

[Carolina_Matt]

It'd cost $20, but you can probably use two of these. You'd just need to attach them together with 5/16" tubing.

https://www.amazon.com/gp/product/B071LQZH4V/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

 

[mirthfuldragon]

Are you trying to push CO2 in through the liquid out post? If so, the easiest way would be to change a CO2 line end to barb-FFL and get a set of MFL posts. Then you can screw either line to either post, and swap to FFL pin lock fittings if you needed to do so.

 

[Maylar]

Are you trying to push CO2 in through the liquid out post? If so, the easiest way would be to change a CO2 line end to barb-FFL and get a set of MFL posts. Then you can screw either line to either post, and swap to FFL pin lock fittings if you needed to do so.

No, I'm trying to blow CO2 through a liquid line that's been disconnected from the keg. Basically purging cleaning solution from the line and faucet. I forgot that I already have a liquid QC hooked to my CO2 manifold for purging O2 from the keg - I can use that and the double QC liquid coupler linked in post #2.