How do you protect potable feed water for a boiler?

To protect potable feed water for a boiler, using a pressure vacuum breaker is essential. This device is designed to prevent backflow, which can occur when there is a drop in water pressure in the supply line. When the pressure drops, contaminated water from the boiler can be siphoned back into the potable water supply. The pressure vacuum breaker acts by allowing air to enter the system if there is negative pressure, which breaks the siphon effect and prevents any backflow of potentially harmful substances into the drinking water.

In terms of preventing contamination and ensuring water quality, the pressure vacuum breaker is specifically designed for this purpose in scenarios where there is a risk of backflow. Its installation helps maintain a safe and compliant system for potable water used in the boiler, aligning with health and safety regulations. By maintaining a distinct separation between the potable and non-potable systems, this device plays a critical role in safeguarding public health.