What does the Bellows type sensor react to?

The Bellows type sensor primarily reacts to pressure changes. This device operates on the principle of detecting variations in pressure within a fluid system. As pressure increases or decreases, the bellows—typically made from a flexible material—expand or contract accordingly. This movement can then be converted into an electrical signal or indicator, allowing operators to monitor and regulate pressure levels within water distribution systems effectively.

Understanding the functionality of a Bellows type sensor is important for professionals in water distribution, as maintaining appropriate pressure levels is crucial for efficient and safe operation of the system. Each of the other options represents different types of sensors designed for specific applications, such as temperature sensors for thermal measurements, flow sensors for monitoring the rate of water movement, and chemical sensors for analyzing water composition, none of which would operate based on the mechanical response characteristic of a Bellows sensor.