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In your message dated Sunday 24, September 1995 you wrote : > > Doug Chapman post a very interesting and detailed message about composite > cylinders. The main problem cited for their use in SCUBA pertains to > physical abuse (for lack of a better phrase). My question is: don't > fire fighters physically abuse their composite cylinders as much as scuba > divers do? What are the inspection protocols they use? > > Aloha, > Rich > We have recently changed over to Luxfer Composite cylinders in the UK , the guy's at work are well impressed!. The main problem is the one that Doug mentioned, i.e mechanical damage. To prevent this damage occurring the cylinders have a heavy duty nylon cover bag that had a drawstring closure around the cylinder neck. This cover is considered part of the cylinder. The original cylinders that were trialed had a finite life based upon the number of charging cycles they had been through. The ones we now use on the new breathing apparatus sets are rated at 10 years lifespan independant of number of times the cylinder has been filled. They have only recently been made legal over here due to problems in ascertaining the condition of the aluminium liner exterior condition. The only damn trouble is these things float even when full!!. Chris --------------------------------------------------------------------------- Chris Hellas EMail:- chris@de*.de*.co*.uk* 100422,2334@co*.co* ---------------------------------------------------------------------------
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