Irrigation Flow Sensors

Flow sensors detect leaks by monitoring flow rate. If the flow rate is significantly higher than expected (for instance, due to a broken pipe), the sensor sends an alert to the irrigation controller. Some systems are programmed to shut off water to affected zones when leaks are detected.

A flow sensor is typically installed on the main irrigation supply line, after the master valve or backflow preventer and before the zone valves. This placement allows the sensor to measure the total water flow going into the irrigation system. For accurate readings, the sensor should also be installed on a straight section of pipe.

A flow meter measures the exact volume of water passing through a pipe, often displaying readings in gallons per minute (GPM) or total gallons used. These are commonly used for water usage monitoring and reporting. A flow sensor, on the other hand, is typically connected to an irrigation controller. It sends flow data to the controller so it can detect leaks or abnormal flow and automatically shut down the system if needed.

Flow sensors are suitable for most irrigation systems, including residential, commercial, and agricultural setups. However, certain types of irrigation systems, such as low-flow drip systems , may require different types of sensors to ensure accurate measurement.