EP18-72-IOMM-2015-7
Fulton Ltd
Page 27
MAINTENANCE - 4
4.3.2
WATER LEvEL GAUGE (SIGHT GLASS) BLOWDOWN
Blowdown the water level gauge (sight glass) set 1.
1. Open the water level gauge glass blowdown valve A
2. Close (for approx. 3 seconds) the top gauge valve B
3. Open valve B
4. Close (for approx. 3 seconds) the bottom gauge valve C
5. Open valve C
6. Close valve A
Repeat for gauge set 2
On completion of the blowdown procedure ensure that all isolation valves are OPEN and all
blowdown valves are CLOSED.
Note: Where a boiler is operating continuously at steam pressure, advice should be taken from Fulton Ltd as to
the appropriate blowdown procedure.
WORKING
POSITION
STEAM
BLOWDOWN
WATER
BLOWDOWN
A
A
A
B
B
B
C
C
C
Operating Positions
Figure. 12 - Water Level Gauge Operating Positions
