-=> Quoting Steve Elliot to Achim Lohse <=-
 AL>  I recently happened to witness a steel tank being
 AL>  filled to 3000 psi by someone unfamiliar with the
 AL>  equipment. When I realized what had happened, I
 AL>  noticed that the overpressure relief valve was
 AL>  pointing in my general direction!
 AL>
 AL>  For future reference, I'd like to know how many psi
 AL>  it takes to make the overpressure valve pop. Anyone know?
 SE> Depends on the size of the tank, whether it's a high-pressure
 SE> tank or a "normal" pressure tank, type of burst disk, etc.
 SE> All tanks have their operating pressure stamped onto the neck
 SE> at the time of manufacture, and most folks filling the tanks
 SE> will never fill beyond 10% above that limit.
  Well the filling station was a fire hall, and the volunteer 
  firefighter  delegated to do the fill by the fire chief apparently 
  wasn't very familiar with the way the equipment worked. He was 
  filling from cascaded tanks, and it soon appeared that he was fuzzy 
  about what happened. I got one of the other fellows I knew to be a 
  diver to come have a look, and then found out the tank was filled to 
  3000 psi. He dropped the pressure to 2500.
  Achim
  Achim Lohse...Box2250, Invermere BC, V0A 1KO
  lohse@rockies.net/a.lohse@netcom.ca
  FAX: 604-342-0404
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