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Posted by Tom Stanton on April 29, 2002 at 05:17:11:
In Reply to: LOW WATER CONDITION posted by Mike on April 28, 2002 at 08:20:30:
If you are writing a procedure for a low water condition, follow these guidelines if you have a high pressure steam boiler:
1. If the water level is just visible in the bottom of the gage glass, shut the boiler down immediately. This means your two LWCO's did not function.
2. If an operator notices the water level is out of sight low, shut down immediately.
All operators should at least blow down the gage glass upon assuming the watch and preferably the LWCO as well. I know this is not practicable on very large boilers but it is very easily done on the smaller packaged boilers. Do not rely on try cocks, actually, the ASME no longer requires try cocks to be installed on water columns, but some states do.
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