Question for those with 20cf oxygen tanks.

[seatazzz]

Been using the little red bottles to add oxygen prior to pitching yeast for a while now; can get about 3 batches out of each one. They're about $16 a pop at the local hardware store, getting pricey. So I'm looking into buying a 20cf tank I can exchange at the gas place. What regulator works with one of those for brewing? What tubing to use? I have carb stones (don't remember the specific micron at this time) so I'm good there. Thanks in advance.

 

[day_trippr]

My 20cf O2 cylinder sports a cga540 type valve with a medical grade flow meter that these days sells for almost $250 (!) I paid less than half that 20 years ago. I use some left over Bevlex 200 solid PVC 3/16" ID beer line that fits the stainless shank of the Williams Brewing wand and the screw-on "nut and nipple adapter" (aka "Christmas Tree") oxygen fitting perfectly.

But there are much less expensive flow regulating devices available, such as this one that costs ~$35.

I don't know what the tubing size used with these would be - whatever cannula diameters are...

Cheers!

 

[ba-brewer]

I used to use the little red cylinders but it never felt right, I limited the rate to .5l/min and only give 2min of oxygen for a 5gal batch I was able to get 30batches plus from a single can.

I use an infant oxygen regulator that has .12L/min and .5L/min setting.

I purchased a 15lb tank with a CGA-540 and found a dive shop to fill it with pure oxygen. If it is good enough to breath then it should be good enough for beer.
New 15 cuft Oxygen Cylinder | Gas Cylinder Source

I used some kegging beer line connect the regulator output to the oxygen wand.

 

[IslandLizard]

Here's another current thread on the same topic:
https://www.homebrewtalk.com/threads/using-oxygen-for-brewing.728682/

 

[DuncB]

My setup was same as @day_trippr, but a size D cylinder which was a bit bigger.
Sold it all when I snagged an oxygen concentrator at an auction, very easy has timer, remote control, it's much lighter than the oxygen cylinder and won't need refilling unless the planet runs out of oxygen.

 

[matt_m]

But there are much less expensive flow regulating devices available, such as this one that costs ~$35.

View attachment 828586

I don't know what the tubing size used with these would be - whatever cannula diameters are...

I use one of these from eBay. I got some 1/4" silicone tubing on Amazon that fits with a slight stretch fit over the barb on this and a barb-MFL fitting. I put a "HEPA" filter from Amazon in line too.