New York Low Pressure Boiler COF Practice 2025 – All-in-One Guide to Exam Success!

The purpose of a bottom blow-off valve in low-pressure boiler (LPB) systems is primarily to remove sediments that accumulate at the bottom of the boiler. Over time, water used in a boiler can have impurities and minerals that settle to the bottom, leading to sediment build-up. This accumulation can adversely affect the boiler's efficiency, heat transfer effectiveness, and overall safety.

By regularly operating the bottom blow-off valve, operators can expel this sediment and prevent potential issues such as boiler corrosion or water quality deterioration. This maintenance practice helps ensure the safe and efficient operation of the boiler, promoting its longevity and effectiveness.

The other options do not align with the specific function of the bottom blow-off valve. The releasing steam, regulating water level, and controlling temperature are associated with different components and systems within the boiler setup, not this particular valve.

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