Never done it, but here are some parts:

Amazon.com: 175 PSI Nitrogen Tire Inflation Kit GKNT : Automotive

Buy 175 PSI Nitrogen Tire Inflation Kit GKNT: Air Compressors & Inflators - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Nitrogen Air Tank 22 Cu. Ft. - High Pressure Aluminum Gas Cylinder | BeverageFactory.com

This KegcoI22-580 22 Cu. Ft. Nitrogen Air Tank is produced from high strength aluminum alloy 6061-T6.

www.beveragefactory.com

 

Thanks but that’s a lot more than I want to spend. I can get filled tanks relatively cheap but it’s the connection that costs so much.

 

Industrial grade nitrogen will be cheaper than food grade product.

Industrial Grade Nitrogen, Size 200 High Pressure Steel Cylinder, CGA 580 - several years ago thru work, it was about $200 for a bottle delivered. These were rental bottles, and we'd be serviced once a week for product. I just couldn't get management to recognize that if we'd spent $100k for a nitrogen generation system, we'd recoup our investment in less than three years.

 

Nope, never made the effort, I am fine with 78% nitrogen in my tires.

But something like this would do what you want for <$200.

https://www.polyperformance.com/tools-storage/co2-nitrogen-kits/power-tank-mini-system-ptm-0124

Just get it filled at a paint ball place.
Sorry, these are CO2, not nitrogen.

A ready built setup is ~ $600. Portable Nitrogen Tank
I am sure you could source parts yourself for cheaper.

 

Also once all the "air " leaks out only the Nitrogen would be left !

 

Well, I always keep several 60cu cylinders on hand, but not for tire filling. I found it a total waste of time and effort putting it in tires. Back in the day I've been known to put R-12 or R-22 in my tires. The best ride was with R-12. Compressed air is more than adequate and rivals pure nitrogen if you have a drier installed in your compressor. It's moisture that expands and contracts with temperature.

 

Helium is the best. It lightens the bike.

 

You can get a small nitrogen bottle, a regulator and hose with a quick connect for doing this. The regulator is actually the most expensive part of the setup. I had a similar setup in my lab.

 

I had a similar setup in my lab.

Male or female? And did it change the sound of its bark?

 

I have one of these for when it's not possible to get the wheel close to the air compressor.

Could be filled at a gas station if no compressor available.

Lots of similar ones available.

 

I have one of these for when it's not possible to get the wheel close to the air compressor.

Could be filled at a gas station if no compressor available.

Lots of similar ones available.
View attachment 496610

Hmmm. I wonder if that would legally hold nitrogen?

 

I tried using N20 (Nitrous Oxide) once, bike ran funny after that (sorry, couldn't resist).

Seriously, I have 78% Nitrogen in my Wing right now. It runs just fine but I have to air up more often.

Our car has 100% nitrogen in the tires. I go six months (or more) without having to put in more air.

Using CO2 in tires is OK, however the molecular size is small and it will escape pretty quickly. Just have extra cylinders available. I use this in my flat kit.

 

I own a small nitrogen tank. I’m not sure what the size is, but it’s just one size up from the smallest nitrogen tank available at an industrial gas supply distributor. I usually keep it in my truck. I’m always amazed how many totally flat tires it will fill back up to the required pressure. I‘ve thought about getting another one to keep in my car. If on a long trip fixing a flat a long way from home is a much better option than having to use a donut spare. The last time I swapped it out at the gas distributor I paid around $35. I often perform small handyman jobs and use the nitrogen tank as a substitute for a portable compressor to operate a nail gun. The high pressure tank requires no power, makes no noise and is lighter to carry than a portable air compressor. For my usage it’s well worth the expense. When I worked as a firefighter I had access to the large compressor at the fire station and had a decommissioned SCBA air tank. I still find it hard to believe the amount of air I consumed in twenty minutes fighting a fire could fill so many tires.

 

I don't see the point, but that's just me. Expensive and not necessary in my view.

 

One of the biggest advantages of nitrogen is that it is dry and free of moisture content. This reduces how much gas expansion occurs when the tire is heated. You can achieve a similar result by using a desiccant snake on your air hose to remove most of the moisture from the air you are putting in.

Nitrogen also doesn't leak out through the rubber like air will over time, so there is that advantage as well. So there are some real advantages to using it if you don't mind the extra cost.

 

No but as an aircraft mechanic we aways used due to lower compressibility in cold weather at Altitude and molecules that do not seep thru the rubber as quickly

 

Another major point with Nitrogen and why all commercial aircraft and most major racing teams require nitrogen in the tires is because it is inert, non-flammable and consequently won't cause an explosion if a tire overheats (which was the reason FAA mandated it).

Mexican flight 940 had a tire overheat and explode because it was mistakenly filled with air and not nitrogen. The Boeing 727 was only airborne for about 15 minutes at a FL of 29,000 when the fire from the burning tire breached the cabin. 167 souls were lost. This was almost 40 years ago and created immense interest in selling the gas for use in cars and especially over the road trucks.

FYI: Consumer reports did a study with two groups of tires: One filled with air, the other with nitrogen. The pressure drop between the two was negligible.

Tires with air dropped 3.5 lbs on average and the pure nitrogen tires dropped 2.2 lbs on average.. This after 12 months (!).

As mentioned, a dryer inline with your air hose will be fine, but nitrogen does have some subtle advantages if you are racing, flying or just want to do if for peace of mind.

Or, you can do what Ferrari tried back in the day: Freon and refrigerant instead of nitrogen (but now banned by Formula One) which had superior pressure control compared to nitrogen and improved heat transfer.

 

Or, you can do what Ferrari tried back in the day: Freon and refrigerant instead of nitrogen (but now banned by Formula One) which had superior pressure control compared to nitrogen and improved heat transfer.

Like I said in an early post, I used freon in my tires back in the day and I wasn't even racing. I always had a tank in the truck and I used it for convenience and laziness. Nothing beats a plugging kit and a 30# jug of R12a

 

I just know that my wife’s car tires needed air on average of three times a year with just air and maybe once with nitrogen. And my bike stopped slow-leaking once I went with nitrogen.

For the people who don’t see utility in using it, please reread the BLUF in post #1.

 

Crap. I just spent a lot of time writing an incredibly informative post about air versus nitrogen, and now you remind me that this is NOT a nitrogen thread! I want my 30 minutes back.

 

Since this was skimmed over without being read and/or understood....

BLUF: This is not a thread to argue whether putting straight nitrogen in tires works any better than straight air.

 

I'll stop laughing in around three hours.

 

Not to be a Debbie Downer but let’s not forget about Dalton’s Law of gasses. Gasses will migrate through the rubber in BOTH DIRECTIONS due to the law of partial pressures of each gas. Nothing to due with total pressure. There is no way to keep pure nitrogen in your tire over time unless it’s hermetically sealed… how long,,,,, I don’t have a clue but science is fun.

 

We tried an experiment in my Jeep a few years back. We ran air in the driver's side tire front and passenger side rear, and of course nitrogen in the other two. Air loss, tire temperature and tire pressures were indistinguishable from nitrogen tires compared to air tires. Really didn't see any discernable difference. Not exactly scientific but take that for what it is worth!

 

I keep a small nitrogen tank with a two stage regulator in my tool collection of goodies to use as a quick, easy substitute for an air compressor. If you’ve ever had a daughter startle you from a sweet dream in the wee hours of the morning on a freezing cold winter night asking you to come rescue her because of a flat tire, you would appreciate the ability to quickly fix a flat tire with a tire plug and a fast blast of air (nitrogen). The nitrogen tank is also a lot easier for a young guy like me to lug around than a portable air compressor when shooting a couple of nails into wood framing to mend a busted-in door frame.

 

So I have a series question.

If the air we breath is about 78% nitrogen already, and about 20% oxygen, and oxygen is more permeable through rubber than nitrogen (because of molecular size), then over time doesn't the oxygen leak out faster than the nitrogen? Shouldn't the percentage of nitrogen in your tires go up over time even accounting for refilling and replacing what leaked out?

I could postulate that after 6-8 months, the nitrogen in most peoples tires is close to 90% naturally. So what would be the real benefit of getting the last 10% of the oxygen out of the tire?

The only real benefit I can see is that you probably injected less moisture into the tire with the initial fill if you used nitrogen. If you put a desiccant snake on your air hose, can't you achieve nearly the same thing?

 

So I have a series question.

If the air we breath is about 78% nitrogen already, and about 20% oxygen, and oxygen is more permeable through rubber than nitrogen (because of molecular size), then over time doesn't the oxygen leak out faster than the nitrogen? Shouldn't the percentage of nitrogen in your tires go up over time even accounting for refilling and replacing what leaked out?

I could postulate that after 6-8 months, the nitrogen in most peoples tires is close to 90% naturally. So what would be the real benefit of getting the last 10% of the oxygen out of the tire?

The only real benefit I can see is that you probably injected less moisture into the tire with the initial fill if you used nitrogen. If you put a desiccant snake on your air hose, can't you achieve nearly the same thing?

The oxygen does/leak seep out faster than the nitrogen. Nitrogen seeps out as well. Tires with all nitrogen hold their pressure longer. They also have less moisture, which causes heated tires' pressures to rise higher and faster. The question is how much benefit we get vs the cost? This verges on oil thread-like computations: With a conventional oil, my engine will last 300,000 mile. My extra-special oil will make my engine last 600,000 miles, while yours will make yours last only 590,000 miles. Therefore mine's better and worth the extra $20/quart.

 

FYI, it's simply a hose filled with a drying agent (mine uses calcium chloride). Paint shops use them. You can also just install a dryer device on your compressor tank. I prefer the snake because it removes a higher percentage of moisture.

 

All this discussion reminds me I should probably pull the plug and drain the water out of my compressor tank. Never done it …. Probably for 15-20 years I’ve owned this compressor. It will be interesting what comes out.

 

Probably should have a HazMat team on standby.

 

A class of product I'd never heard of until this thread. There's a range of these available at a range of prices to meet a range of requirments. I ordered the least expensive one just to get my feet wet dry.

 

Oxygen molecules are smaller than nitrogen, not larger.

 

Well, I learned something today. 👨‍🎓

Even though oxygen has more electrons and protons than nitrogen, this is not the only determinate of molecule size.
The size of an atom is based mainly upon the relative numbers of protons and electrons, and then where the electrons will be located. Since oxygen has one more proton than nitrogen, it is more likely that the electrons in an oxygen atom will be found closer to the nucleus since the strength of the proton pull will be greater.

Thx Fred

 

Here's one of the problems with AI. This is an answer to, "Is oxygen denser then nitrogen?"

No, oxygen gas is denser than nitrogen gas, which is why pure nitrogen is slightly less dense than air, while pure oxygen is slightly denser. This is because density is proportional to molecular mass, and an oxygen molecule (O₂) has a greater molecular mass (approximately 32 g/mol) than a nitrogen molecule (N₂, approximately 28 g/mol).

 

Here's one of the problems with AI. This is an answer to, "Is oxygen denser then nitrogen?"

No, oxygen gas is denser than nitrogen gas, which is why pure nitrogen is slightly less dense than air, while pure oxygen is slightly denser. This is because density is proportional to molecular mass, and an oxygen molecule (O₂) has a greater molecular mass (approximately 32 g/mol) than a nitrogen molecule (N₂, approximately 28 g/mol).

Actually, that explanation appears to be correct other than starting the explanation with "N0",providing you did indeed pose the question as "Is oxygen denser then nitrogen?"
Even though oxygen has a greater mass, it still takes up less space (density) than nitrogen due to the extra proton's "pull" on the orbiting electrons thereby drawing the electron cloud closer to the nucleus.

 

Folks, friends all, please reread post #1. This is not an oil thread.

 

True. It's a gas thread.

 

Somebody pass me the laughing gas…… 🤣