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Posted by Mike on April 28, 2002 at 08:20:30:
I would like to know the proper procedure to follow in the event of a low water condition. I have two 35 hp. water-tube boilers that operate at approx. 120 psi. If I encounter a low water condition the first thing that I do is blowdown the gauge glass. If I see no water then I blowdown the water column. If I still see no water then I try all three trycocks from the top to the bottom until I see a level. If I see no level then at that point I shut-off the fuel supply (natural gas in this case), the blower fan, the feedwater,and the main steam stop vlv. I have taken the boiler off-line and will allow it to cool slowly. Is this correct? This is only if I see no water level, because the water level may be below that of the incoming feedwater (which may be the cause of the problem). By shuting off the feedwater I removed the risk of the possible feedwater inrush hitting heated boiler heating surface and causing an explosion.
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