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Rwy in Sight
13th Nov 2003, 04:34
Hello All!

I visited today a company that specializes in aircraft tire maintenance - actually they are a customer of mine. They mainatain and inflate aircraft tyres mainly for B-737, A-320, B-757 and RJ.

They currently use Nitrogen in 10m3 cylinder and they want to start using a Nitrogen generator. We discussed the issues of providing sufficient pressure for the 24 hour test etc.. As a side note they are currently passing the evaluation by JAA so I assume they are serious.

My question for those familiar with these kind of procedure what do you use tanks or Nitrogen generator? I am most intreseted if you are working outside the airport but any contribution would be most welcome. Procedure equipment used capacities of cylinders or nitrogen generator....


I like to help them not because they are my customers but because it is my only aviation related customer.


Rwy in Sight

Bre901
15th Nov 2003, 07:33
Not a direct answer to your question, but it seems that industrial gas companies are more interested in providing nitrogen generators than cylinders to inflate tires . See for instance :
http://www.airliquide.com/en/business/industry/transportation/visu_aeronautics.asp
http://www.airliquide.com/en/medias/pdf/business/gases/supply/tires_filling.pdf

eskimotail
20th Nov 2003, 16:40
My experience is using Nitrogen generator in US Coast Guard. You use the generator to fill bottles that you already own. You wouldn't want to provide very high pressure piping thruout the facility. The generator chugs away unattended and charges the bottles, you then put the bottles on the typical trolley and take the Nitrogen where you want it. Our generators would fill a bottle to just shy of 3300 PSI in about 8 hours from empty. We did this in Alaska and shipboard where delivery was a little difficult. The US Navy has a cart with a series of 6 bottles on it that uses the Nitrogen pressure from one bottle to turn a very high pressure pump and boost the pressure from the other bottles up to approximatly 4500 PSI for charging their very high pressure accumulators. The Osprey has 5000 PSI hydraulic systems so they must be able now to obtain at least that for flight control hydraulic system accumulator charging.
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