Flexible Gas Line?

[El Duderino]

Is there a brand/type of gas line that stays flexible in cold temps?
The red stuff I'm using gets so stiff its a pain to move me CO2 Bottle and kegs around in my kegerator.

 

[VikeMan]

You don't have to use the double walled "red stuff" if you don't want to. You can even use the same kind of line you're using on the liquid side if you want.

That said, you'd probably be losing some durability and, depending on the new line, possibly increasing O2 permeability a bit.

 

[Vale71]

Silicone stays flexible even at low temps. As a matter of fact low-temperature applications are the reason why silicone gaskets exist.
On the other hand it's the most oxygen permeable synthetic rubber known to man so you'd be trading a small incovenience for an even larger one (oxidation).

 

[Jhenjum]

I use liquid line for gas lines as well.

 

[Dr_Jeff]

I use the same line for everything Bevlex 200.


There are some on here the just love on Eva Barrier tubing.

 

[IslandLizard]

There are some on here the just love on Eva Barrier tubing.

... Because it has an O2 barrier lining. Far less oxidation of your beer through the tubing, on both beer and gas side.

 

[day_trippr]

^exactly^

Well over a year ago now I stumbled across some data on the EVAbarrier tubing that convinced me it was the best beer line available then - and now - and promptly switched every foot of tubing across all of my systems - beer and gas - to EVAbarrier. Even my keg purging lines are EVAbarrier now...

Cheers!

 

[Coookies58]

But the the thread starters point, isn’t the EVA barrier stuff a bit stiffer?

 

[day_trippr]

In my experience, there is almost no difference in bend radius between EVAbarrier and solid PVC ala Bevlex 200.
This is somewhere between 1" and 2"...

Cheers!

 

[Coookies58]

Good to know. I e often heard people complain about it being hard to coil up. Thanks Day Tripper.

 

[day_trippr]

I have a suspicion you may be conflating EVABarrier tubing with Bevseal Ultra Series 235, which is notorious for a tough bend radius.
I haven't seen anyone complaining about the former bend radius, and would be suspicious of anyone that does
It really is quite easily manipulated...

Cheers!

 

[Coookies58]

I have a suspicion you may be conflating EVABarrier tubing with Bevseal Ultra Series 235, which is notorious for a tough bend radius.
I haven't seen anyone complaining about the former bend radius, and would be suspicious of anyone that does
It really is quite easily manipulated...

Cheers!

That’s entirely possible. I’ve looked into both.

 

[Dr_Jeff]

Well over a year ago now I stumbled across some data on the EVAbarrier tubing that convinced me it was the best beer line available then - and now

Please share that data, as I have a hard time believing that a line with internal pressure will allow oxygen into the line, as it defies logic and pressure dynamics.

 

[Vale71]

It does not defy gas diffusion dynamics though.

https://opentextbc.ca/chemistry2eopenstax/chapter/effusion-and-diffusion-of-gases/

 

[BongoYodeler]

To those who are running Evabarrier what is the solution for attaching it to a Taprite (T742) regulator barb? Seems I've read on here somewhere that it's impossible, or damn near impossible, to switch the barb out for for an MFL connection.

 

[day_trippr]

My Taprites came with mfl shutoffs, but my Micromatic beergas reg came with a 3/8" barb (!)
I was able to get the 5mm ID EVAbarrier tubing over that barb using a swaging tool and heat. I wouldn't be confident I could have done it with the 4mm ID EVAbarrier that I use for all my beer lines...

Cheers!

 

[Bobby_M]

Please share that data, as I have a hard time believing that a line with internal pressure will allow oxygen into the line, as it defies logic and pressure dynamics.

Common sense is not the same as scientific reality and are unfortunately in direct conflict often.

 

[Vale71]

Common sense is not the same as scientific reality and are unfortunately in direct conflict often.

You mean scientific theory, of course. Concepts like reality belong to philosophy or something else that can't be mentioned. You gotta love epistemiology!

 

[VikeMan]

Common sense is not the same as scientific reality and are unfortunately in direct conflict often.

The argument from personal incredulity is possibly the most common logical fallacy. And the hardest to shake.