What does a boiler's blowoff valve do?

The blowoff valve in a boiler plays a crucial role in maintaining the quality of the boiler water. Its primary function is to remove sediment and impurities that accumulate over time in the boiler's system. As water is heated and converted into steam, minerals and other contaminants can settle at the bottom of the boiler, potentially leading to a reduction in efficiency and even damage to the equipment.

By discharging these sediments and impurities, the blowoff valve helps ensure that the water quality remains high, which is essential for efficient boiler operation and longevity. Proper maintenance, including the regular use of the blowoff valve, can prevent issues such as corrosion, scaling, and buildup that could otherwise compromise the boiler's function and safety.