Silicone tubing for CO2

[PeeBee]

... Yep, '16 bar' is printed on the tubing. It may have been a manufacturing flaw? I wasn't pushing much pressure through it. I'm not sure this type of tubing is designed for CO2. It might be too permeable for CO2? Any localised release, even under low pressure, might cause things to heat up too much then bang! Followed by a change of underwear.

Possibly is a bit permeable (medium density polythene) but folk have been using it (both 3/16 and 3/8) for eons without much concern. I use polyurethane tubing which is selected for its impermeablity to CO2 (for aquarium use) but the minute leaks in the rest of the system (connectors, etc.) drive me nuts! You are probably right putting it down to "manufacturing flaw", but everyone here seems excited by the glass reinforced PVC stuff now. Nothing like a bit of British belt and braces.

[f00b4r]

Well it gets rid of the need for all those reducers on my manifolds

[Kev888]

Is the 3/16" beer line officially rated for use with gas or just beer/liquid? I believe gas can find and exploit small weaknesses better than liquid at the same pressure, so it may not be a given.

Though I must admit to using a bit of 3/16" for CO2 lately, whether suitable or not. So far no explosions but it is thin weedy stuff compared to 3/8" and seems more prone to leaks around the push-fittings - it is also too small for the barbs I have, which are generally more reliable. So I was going to return to 3/8" for that reason, but the reinforced polytube may be a good call

[f00b4r]

The OD (of what I use, which is very pliable) is slightly smaller than 3/8:

image.jpeg

Bit of a thread revival as I was waiting for this to come back in stock but can you confirm if this tubing works with JG fittings or not please?

[McMullan]

The OD (of what I use, which is very pliable) is slightly smaller than 3/8:


image.jpeg

Bit of a thread revival as I was waiting for this to come back in stock but can you confirm if this tubing works with JG fittings or not please?

You will need suitably sized JG tube-to-stem connectors, if you want to use JG fittings. Personally, I'd recommend standard flare fittings for the CO2 side, though. Simpler and more reliable. And cheaper!

[f00b4r]

The OD (of what I use, which is very pliable) is slightly smaller than 3/8:


image.jpeg

Bit of a thread revival as I was waiting for this to come back in stock but can you confirm if this tubing works with JG fittings or not please?

You will need suitably sized JG tube-to-stem connectors, if you want to use JG fittings. Personally, I'd recommend standard flare fittings for the CO2 side, though. Simpler and more reliable. And cheaper!

Cheers, although my gas management board side already has JG fittings so I would need to get barbs or maybe just use standard gas line between that and anything directly off of it (mostly barbed manifolds thou).

[McMullan]

Since you've already opted for JG, a bag of tube-stem connectors might work better. Cost wise, compared to flares, probably not much in it.

[f00b4r]

Yeah i might just do that on that end of things. Xmas holidsay project i think

[donchiquon]

The OD (of what I use, which is very pliable) is slightly smaller than 3/8:


image.jpeg

Bit of a thread revival as I was waiting for this to come back in stock but can you confirm if this tubing works with JG fittings or not please?

I think I might switch to this for the higher pressure CO2 lines and I also need some for an Angram that I picked up before xmas.

Brouwland are back in stock late Jan. EWL do a larger size: https://www.ewlonline.co.uk/pvc-3-8-x-5-8-braided-30m but not sure if this would work as well?....

[donchiquon]

Quick question before I order. I also need some flexible 3/8 beer line to run to an Angram (I'm assuming pulling an Angram on 3/16 wouldn't be ideal?), would this be the best option for beer or is there something more suitable?

Cheers

[McMullan]

I'm not sure if 3/16 is suitable for an Angram pump. I used 'flexible' 1/2" beer line for my first cask ale over Xmas. It worked very well with an-inline non return valve, but I'll use 3/8 for the next batch. The 1/2" is too rigid. I'll need to use some for the valve, though:

http://cfbsonline.co.uk/index.php/handp ... -line.html

[PeeBee]

I'm not sure if 3/16 is suitable for an Angram pump. ...

I'm sure. Because I was daft enough to try it once! No it's not suitable; the pump handle will bend/break hauling on it to try and get the beer through that tiny bore.

... I used 'flexible' 1/2" beer line for my first cask ale over Xmas. It worked very well with an-inline non return valve, but I'll use 3/8 for the next batch. The 1/2" is too rigid. I'll need to use some for the valve, though:

http://cfbsonline.co.uk/index.php/handp ... -line.html

That's a real "check-valve"! I guarantee there is now a group of folk trying (and failing) to use one instead of the mis-named hand-pump "check valve" because of it's more compact design. John Guest do a pushfit one for 3/8" beer-line, but that'll be a fiddle to fit to other types of line too.

A real check-valve can only replace a hand-pump "check-valve" (a demand valve) when the cask/keg is below the pump, and far enough below for the weight of beer in the vertical bit of pipe to counter any pressure build up in the cask/keg. Both prevent potentially bad beer returning to the cask/keg from the pump. (That statement isn't for you "McMullan" 'cos I know you'd understand it; it's for the folk I reckon you could have mis-guided - hmm I should find a job writing "risk assessments" and fool-proof procedures; you know the sort who do this - right pains-in-the...).

EDIT: That last statement might upset someone, so I'd better adjust it... Writing "risk assessments" and fool-proof procedures is a right pain-in-the... But then again people who enjoy writing them probably are right pains-in-the...

[donchiquon]

So would the flexible braided brouwland hose be a good option for a 2-3m line to an Angram? Or would a silicone version be better?


Ian

[PeeBee]

So would the flexible braided brouwland hose be a good option for a 2-3m line to an Angram? Or would a silicone version be better?


Ian

As the thread seems to have switched from CO2 line to beer line...

Avoid using silicone tube to carry fermented beer altogether. Silicone tube is virtually transparent to oxygen and the beer it contains will suffer because of it.

[donchiquon]

As the thread seems to have switched from CO2 line to beer line...

I'm hoping that Mcmullan's Brouwland tubing can be dual purpose I;be just ordered 12m to do my higher pressure CO2 lines and a beer line to my Angram which needs to be flexible.

I could do with a decent barbed splitter for force carbonating two kegs at once. Anyone think that this would work? I'm not sure of the external dimensions....https://www.themaltmiller.co.uk/product ... e-t-piece/ Or is there something more suitable?..

EDIT - I've found a plastic T hose joiner that should work just fine!