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Boiler operators and technicians should pay close attention to three key safety devices to protect personnel, equipment, and the facility:
- Safety valves. The safety valve is the most important safety device in a boiler or domestic hot-water system.
- Water-level control and low-water fuel cutoff.
- Water-gauge glass.
Also to know is, how do I check the safety devices on my boiler?
For back boilers and fires; Check flue connection to boiler is good and visually good. Check safety devices are working and closing the gas valve within 60 secs. After 10 mins insert a smoke bomb and check the integrity of the flue. Check burner Po on the gas valve and heat input.
People also ask, where is the safety valve on a boiler?
It is located on the boiler steam drum, and will automatically open when the pressure of the inlet side of the valve increases past the preset pressure. All boilers are required by ASME code to have at least one safety valve, dependent upon the maximum flow capacity (MFC) of the boiler.
While historically, boilers would over-pressurise and explode with alarming regularity, modern boilers are manufactured to be able to withstand excessive pressure, and can typically handle an operating pressure of 20 PSI. When pressures increase beyond this level, the boiler can fail, which can lead to an explosion.