Boiler level alarms or trip defects are to be rectified immediately. The boiler should not normally be operated with any such safeguards inoperative unless under the supervision of the Chief Engineer. In this circumstance the boiler must be continuously monitored.
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Bottom blowdown piping must be of a diameter large enough to minimize the risk of being plugged with baked sludge. Modern boilers discharge bottom blowdown to a blowoff tank where the blowdown can flash and vent steam upwards without entraining water which might cause burns.
Your guide to safer boiler operation. Steam boiler. 1. Safety valve 2. Low-water cutoff 3. Water column blow-down valve 4. Pressuretrols (one is high-limit safety) 5. Steam pressure-gauge 6. Water column clean-out (cross tee) 7. Bottom blow-off and drain valve 8. Low-water cutoff/blow-off valve Note: Second low-water-cutoff not shown in diagram
Precautions to be carried out Regularly: Never operate boiler above the design pressure and check for the safe operation of Safety valves as well as fusible Regular cleaning of the perforated line is necessary Stainer must be installed before the pump & check for
This leaflet applies to steam and high temperature hot water boiler plant (operating above 0.5 bar pressure and a temperature of 110 °C). It describes a process which you, as a manager, can apply to assess if your boiler installation can continue to be operated safely. Steam-raising plant and boilers Figure 1 shows a sectional view of a