Draining The Boiler - FULTON J Series Installation, Operation And Maintenance Manual

Fulton Ltd
4.8

DRAINING THE BOILER

Your local regulations could state boiler water above 43 °C must not be discharged into the drain.
Boilers with manual blowdown valves
1. Ensure the boiler is cold.
2. Isolate the boiler electrics at the isolator on the control box door.
3. Isolate the feedwater tank and the feedwater pump.
4. Open the main steam valve and the boiler drain valve.
5. Open the drain valve on the blowdown vessel.
6. Open all valves in the drain lines.
Boilers with automatic blowdown systems
1. The boiler should not be under pressure.
2. The boiler should be cold.
3. Close the blowdown isolation valve.
4. Using a screwdriver located as shown 'A', push up and make a quarter turn, this will lock the
button in position and open the blowdown valve.
5. Using the blowdown isolation valve to throttle the flow, drain the boiler.
Note: Skid systems and plantrooms have internal drainage systems which require the same procedures.
JGASUK-IOMM-2015-2
ALWAYS check your local regulations.
A
Figure. 26 - Automatic Blowdown Valve
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CAUTION
MAINTENANCE - 4
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