AL>-=> Quoting Jay Hanig to Achim Lohse <=-
AL>  ....
AL> JH> A relatively new overpressure relif valve ought to blow about 1000 
si
AL> JH> above the rated pressure of the tank.  A tank that has been filled 
nd
AL> JH> emptied many times will blow (its burst disk) sooner.
AL>  Thanks Jay. I'm going to be more careful in future.
AL>  Achim
For the Steel rated at 2250 lbs I believe the burst disk is 3500 lbs and
a 3000 lbs is 5000 lbs.
But with age and corrosion they should be serviced by usage or atleast
when the tanks are hydroed.
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