What fitting do I need?

[mnoone]

I'm trying to set up my kegerator for Nitrogen. I have a tank that I think is nitrogen that was previously used for pushing cold brew coffee. If somebody can confirm that the sticker pictured ("SMALL_IMG_20180326_134950.jpg") means nitrogen I would appreciate it though!

I want to put a valve on the output of the regulator. But it appears to be a strange fitting that I'm not familiar with. In the picture "SMALL_IMG_20180326_134554.jpg" the top device is Micromatic part # 1600AB with a 1/4" Right Hand NPT. The device on the bottom was attached to my regulator before I removed it. So I guess I would like to find an adapter that would make my valve look like that strange fitting in the bottom picture.

Any help is appreciated!

[djc]

The threading of the regulator into the tank will tell you if it is nitrogen. A nitrogen cylinder has a female (internal) thread and the matching regulator has a male thread. CO2 is the opposite. That looks like a nitrogen tank. For the regulator you need a nitrogen shut off valve, Micromatic sells them with their nitrogen regulators, I don't see them as a separate item. If you are running only 1 line, the shut off has pretty limited value, you can just turn off the cylinder.

[mnoone]

The threading of the regulator into the tank will tell you if it is nitrogen. A nitrogen cylinder has a female (internal) thread and the matching regulator has a male thread. CO2 is the opposite. That looks like a nitrogen tank. For the regulator you need a nitrogen shut off valve, Micromatic sells them with their nitrogen regulators, I don't see them as a separate item. If you are running only 1 line, the shut off has pretty limited value, you can just turn off the cylinder.

Hi - so my concern was if what I have is 100% Nitrogen or if its beer gas. I agree that it's definitely a nitrogen tank - but my understanding is that you use nitrogen tanks for both nitrogen and beer gas. Correct me if I'm mistaken though!

So I had wanted a shut off valve to save nitrogen. I agree that you can get away with just closing off the cylinder - but that seems wasteful as you lose everything that's at high pressure. Maybe that's not actually much gas that gets lost though?

Regardless - I think I need to find a new fitting since the one I have (that I took a photo of) is made for 1/4" tubing I think (largest diameter on the barbs is 0.3"). Where can I at least find a new fitting that is designed for 5/16" hose (which is what I am running throughout my system) that will fit this regulator? Any idea what the regulator's fitting style is called?

[djc]

You hadn't said anything about beer gas until right now, in your original message your concern was is it a nitrogen tank. Yes, same tank for beer gas. If you look at the nitrogen regulators on Micromatic's web site,

https://www.micromatic.com/primary-nitrogen/double-gauge-nitrogen-regulator-premium-series-gn1773

and then select the replacement parts tab, it will show you this is the gas shut off used in their products, and has the proper barbs for 5/16". You'll probably spend more on shipping than the part costs. .

https://www.micromatic.com/gas-shut-...ut-off-751-107

[mnoone]

You hadn't said anything about beer gas until right now, in your original message your concern was is it a nitrogen tank. Yes, same tank for beer gas. If you look at the nitrogen regulators on Micromatic's web site,

https://www.micromatic.com/primary-n...-series-gn1773

and then select the replacement parts tab, it will show you this is the gas shut off used in their products, and has the proper barbs for 5/16". You'll probably spend more on shipping than the part costs. .

https://www.micromatic.com/gas-shut-...ut-off-751-107

Unfortunately that part won't fit my regulator - it seems some regulators use 1/4" threads - actually I think most do. But mine doesn't (as far as I can tell). Instead, it uses an inert gas fitting. I've seen references to it as a CGA-032 or CGA 5-8"-18. It looks like I can get an adapter - Western Enterprises AW427 - that should get me to normal 1/4" threads.