[Jewelry making - Article 00440] - Re: [Orchid] LP Tank and Fire Inspection

[James Binnion]

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    All pressure tanks have relief valves otherwise they are bombs
    waiting to explode. 

    The danger from portable LP tanks of the 5 gallon variety is that the
    older ones could be overfilled by inexperienced operators. It is now
    illegal in the USA to refill these older tanks. The newer variety
    have a built in float valve that shuts off the tank valve if someone
    tries to overfill it. The new ones have a distinctive valve handle
    design and the letters OPD stamped on the handle. If your tank does
    not have the OPD marking ask your gas supplier to verify if it has
    the Overfill Protection Device in it if it doesn't then get a new
    one that has the OPD. 

Jim

James Binnion
jbin AT mokume-gane.com
James Binnion Metal Arts
http://www.mokume-gane.com
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