What protects the flushometer valve?

The flushometer valve is designed to control the flow of water in toilet systems, and it requires protection from back siphonage or backflow, which can contaminate the potable water supply. The non-pressure-type vacuum breaker serves this purpose by preventing these backflow issues. It works by allowing air to enter the system when a negative pressure is detected, effectively stopping the reverse flow of contaminated water into the clean water supply.

This device is crucial in maintaining the safety and health of the water system, thus ensuring that any potential contaminants cannot travel back into the clean drinking water. Other devices, such as pressure relief valves or temperature control valves, do not effectively address the specific risk of backflow in the context of flushometer valves. By integrating a non-pressure-type vacuum breaker, the system remains compliant with health regulations and protects public health.