Maintenance
5-4
750-382
CBT
Periodic replacement of the water gauge glass should be part of a regular maintenance program. A broken or
discolored glass should be replaced at once.
Use a proper size rubber packing. Do not use loose packing, which could be forced below the glass and possibly
plug the valve opening.
Open
Open
Closed
1
2
3
4
5
6
7
8
1. Open Water Column blowdown valve (5 to
10 sec.) to discharge water from WC.
2. Close WC blowdown valve.
3. Close upper gauge glass isolation valve.
4. Open gauge glass blowdown valve to
discharge water from gauge glass.
5. Close lower gauge glass isolation valve.
6. Open upper gauge glass isolation valve.
7. Open lower gauge glass isolation valve
to discharge steam from gauge glass.
8. Close gauge glass blowdown
valve.
FIGURE 5-2. Water column and gauge glass blowdown
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