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I don't want to sound to old, but 30 years ago tanks were differnt then today. When I was a kid diving in the beautiful and clear meditrranean waters, I rember that tank explosions were something you always talked about. There were compressor boys that lost pieces of their body because a "normal" tank pumped to a "normal" pressure exploded without warning. To protect the people we put the tank in the water during filling, very few people had the concept of temperature and pressure, the water and the heavy duty concrete water-tank were there to contain explosions. Burst disk were built to prevent this, simply as a safety valve. If they really work or not I do not know. There are still good old tanks around, but I would never buy one. Today tanks are lighter and more elastic, I buy my equipment directly from a big manifacturer in Italy, that makes Valves, Tanks and O2 equipment that you find on some major US Tech diving catalogs (No advertising!). The tanks pressure rating is asked by the client, if you want a low pressure tank you ask for a lower pressure rating and that cost less, if you want more just ask. The tank will take the highest pressure any compressor can make anyway. The same valve that you use with a burst disk comes without. Exactly the same tank and valve is sold with different specifications at different prices. Every time I went cave diving in Florida, my tanks had a double Burst Disk as a "safety" feature. So I think you don't need them any more. Regards Roberto <<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> < > < Save the Krills! Kill the Whale! > < > <<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> < divetek@we*.ch* (Roberto Bagnasco) > <<<<<<<<<<<<<<<<<<<< <<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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