September 1, 2004
Flagrant violation of the rules...
It must be closed at all times to protect what? I can't quite read the last two words.
... 'to protect gauge glass.'
I guess sudden changes in air pressure and temperature would shatter the glass on these gauges...
"To protect the gauge glass"from thermal stress. The gauge glass was used to check the level of the boiler steam drum under a pressure of 2,000 psi.The glass was 2 inches in diameter and 1 inch thick and was bolted to a
steel column. If the glass cracked and blew out a very serious accident could result to any person in the area.
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