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Old 28 September 2013, 03:18   #1
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Nitrogen filled coller

Just got access to a nitrogen generator,, is it worth me filling my new tubes,

I know lots of tyre depots give you the option now, less expanding in heat and slower loss due to bigger molecules,

Did a search and just found a good slanging match over it , has this moved on now, do people get benefits from it or not ?

Or will I die if I rip the side out of it on a mooring!
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Old 28 September 2013, 03:34   #2
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Or will I die if I rip the side out of it on a mooring!
Nope. Air is 79% Nitrogen anyway.
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Old 28 September 2013, 03:36   #3
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Being as air is 79% nitrogen anyway I can't see much benefit in replacing the 21% O2 with N2. If it costs nowt, it won't do any harm & will be an interesting experiment. I've never had problems with the tubes going down, they hold air from year to year. If you were talking Helium, that would be different, H2 molecules are tiny & will actually pass through the tube material.
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Old 28 September 2013, 03:40   #4
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Stand by what I said before regards nitrogen and it collecting on deck.
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Old 28 September 2013, 03:44   #5
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Stand by what I said before regards nitrogen and it collecting on deck.
I thought I had a Deja Vu moment
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Old 28 September 2013, 04:08   #6
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Yup lol
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Old 28 September 2013, 04:09   #7
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Can I have the O2 that your not going to be using? That would be lovely.
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Old 28 September 2013, 04:15   #8
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If you were talking Helium, that would be different, H2 molecules are tiny & will actually pass through the tube material.
Except Helium is He: Hydrogen exists as H2
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Old 28 September 2013, 04:21   #9
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Quote:
Originally Posted by nugent View Post
Just got access to a nitrogen generator,, is it worth me filling my new tubes,

I know lots of tyre depots give you the option now, less expanding in heat and slower loss due to bigger molecules,

Did a search and just found a good slanging match over it , has this moved on now, do people get benefits from it or not ?

Or will I die if I rip the side out of it on a mooring!
They might get bent if you come up north to fast.......
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Old 28 September 2013, 05:05   #10
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Except Helium is He: Hydrogen exists as H2
And you wouldnt want that in there ... might give you a better lift off the top of a wave mind you
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Old 28 September 2013, 09:49   #11
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ATS offered to fill my new tyres with nitrogen, they said they would maintain they're pressure, the bloke then said I could come in once a month to get them topped up for free, I said if they maintained pressure why would I need to, he looked stumped.
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Old 28 September 2013, 10:54   #12
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Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.
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Old 28 September 2013, 11:25   #13
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Except Helium is He: Hydrogen exists as H2
Aye my bad, typo
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Old 28 September 2013, 11:26   #14
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Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.
Air can be dried, diving air is VERY dry.
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Old 28 September 2013, 11:59   #15
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Oh the huge manatee, the huge manatee...
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Old 28 September 2013, 14:14   #16
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Air has water vapour in it. This expands a lot with heat and contracts with cold. The Nitrogen will be dry and will maintin a more constant pressure regardless of the temperature.
Are you sure about this? My understanding is that water volume is not significantly affected by temperature. If it was our central heating systems would explode, and kettles would overflow?
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Old 28 September 2013, 14:48   #17
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jeeez... thats why there is a max fill mark on a kettle, and things such as 'expansion' (note that name) tanks on car coolant systems!
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Old 28 September 2013, 14:59   #18
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Air is 78% nitrogen, and O2 does cause degradation to many rubber and plastic items (Albeit mostly in higher concentrations of O2). If it is free, why not fill with nitrogen? If it requires doing any kind of extra work or driving, forget about it.

I have a 5,000 psi compressor that produces very dry air @32% O2, and the only time I would ever consider using it in my tubes, is in an emergency while out on the water. Otherwise I just use a hand pump.
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Old 28 September 2013, 15:01   #19
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Air has water vapour in it. .
yes but not a lot of it! Air is according to my 1980-something O level notes circa 79% nitrogen, 19% oxygen & bits of other stuff inc. some CO2. The other stuff in will depend on local conditions.

However if anything there must be more CO2 in the air now - as we now have global warming which we didn't back ten.

Then again I never was very good at science

Can't see it would make a significant difference, but I'm no scientist.
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Old 28 September 2013, 15:13   #20
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Here you go, study this...... Thermal expansion - Wikipedia, the free encyclopedia

All the info is there and makes a more interesting Saturday night than watching the X Factor.
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