Foam out of keg

[IgorR]

Hello All,

I'm home brewing for couple of years now. But was always used bottles.
Few month ago decided to advance to kegs, so bought small (6L) keg and gas system from AliExpress. (see attached).

First try (fast carbonization):
NE IPA, after fermentation over, cold crashed at 3*C, transferred to keg.
Put 30 psi, than rolled for 15 mins - repeated 3 times.
Let it settle for an hour - when pouring - only foam come out.
When foam turned to liquid - the feeling like there is not enough gas in beer.

Second try:
Stout, after fermentation over, no cold crash, transferred to keg.
Put 12 psi, inside refrigerator at 5*C for 3 days.
when pouring - only foam come out.
When foam turned to liquid - gas level is normal.

Pictures:
1. Gas tank + gas line.
2. Keg.
3. Beer line.

I have no idea how to fix the foaming,
The primary suspect is beer line connectors, cheap plastic and all.
Will be very grateful for help to figure out where is the problem.

 

[CascadesBrewer]

The line on your beverage line looks very large. Are there any marking on that line saying the size? A narrow line will create resistance that slows down the beer and allows for proper pours. Common line ID (inner diameter) for beer like are 3/16" or 4mm.

 

[GilSwillBasementBrews]

The line on your beverage line looks very large. Are there any marking on that line saying the size? A narrow line will create resistance that slows down the beer and allows for proper pours. Common line ID (inner diameter) for beer like are 3/16" or 4mm.

I agree. Looks like your lines are switched. Use the thicker red one for co2 gray connector. And the thinner line for liquid black connector

 

[IgorR]

Thanks a lot.

Will try it in a weak, fresh batch is fermenting now.
Also bought another tap, will try it.

 

[GilSwillBasementBrews]

Thanks a lot.

Will try it in a weak, fresh batch is fermenting now.
Also bought another tap, will try it.

I would say that is way too short serving line. But it is a flow restricting faucet so you might get it to work. But generally, if your beer is foaming out the faucet you’d want longer not shorter lines. But a restricting faucet will compensate for shorter lines.

 

[tracer bullet]

First try (fast carbonization):
NE IPA, after fermentation over, cold crashed at 3*C, transferred to keg.
Put 30 psi, than rolled for 15 mins - repeated 3 times.
Let it settle for an hour - when pouring - only foam come out.
When foam turned to liquid - the feeling like there is not enough gas in beer.

This sounds like way too much. I force carb rolling my keg on the floor for about 10 minutes at about 14 psi (chose to be just a bit over where I serve at 12 psi). In that 10 minutes the beer's taken in about what it can and the regulator stops making the tell-tale gas passing through it noise. This is about the right amount of carbonation as far as my experience goes.

Also agreed on line length, super short lines with a picnic tap = foam city. I do see you have a preper tap but - if it's not working correctly the lines will fix it.

 

[IgorR]

At the end, it was my fault. The pressure gauge was in bar, not psi.
So when i thought there was 12 psi, it was actually 1.2 bar (17 psi).
now with 0.75 bar - all good.