The primary function of the water column on a low pressure boiler is to reduce what?

The primary function of the water column in a low-pressure boiler is to reduce water turbulence. The water column acts as a stabilizing element that helps to equalize the water level in the gauge glass, ensuring an accurate reading of the water level in the boiler. By minimizing turbulence, the water column allows for a more reliable and stable pressure measurement, which is crucial for the safe operation of the boiler. Turbulence can lead to erratic water levels, making it difficult for operators to maintain control over the system’s performance, potentially causing operational issues.

Maintaining a calm water environment in the column is essential for interpreting the water level correctly, leading to a safer and more efficient boiler operation. This is why the reduction of water turbulence is the correct answer, as it directly ties into the safety and functionality of the boiler system.