1/2 3/4 1 Water Flow Sensor | Brass Hall Effect Flowmeter | Liquid Control

This brass water flow sensor measures how much liquid moves through a pipe and how fast. The Hall effect sensor has a small turbine that spins with the water. For each rotation, it sends an electrical pulse. A microcontroller can read this pulse. Features and Benefits - Solid Brass Body - The brass housing resists corrosion. It handles water pressure up to 1.75MPa and higher heat than plastic options. - Hall Effect Pulse Output - The sensor creates a simple digital signal. This makes it easy to use with systems like Arduino for precise liquid control. - Standard Pipe Threads - It comes in 1/2", 3/4", and 1" sizes. These fit common plumbing connections for a tight, secure setup. - Sealed Internal Rotor - The magnet and sensor are fully sealed from the water. This helps prevent problems from debris or mineral buildup. Applications - Monitoring water use for a smart home or automated garden irrigation system. - Building a water heater control system that only turns on when water flows. - Measuring liquid dispensing in projects like automatic drink makers or chemical mixers. Key Functions This brass hall effect flowmeter is designed for accurate water flow measurement. It is suitable for pipe diameters of 1/2 inch, 3/4 inch, and 1 inch. The sensor provides liquid control information without requiring an external power source, as it is electricity-free (passive). Understanding the flow of water is critical in many systems, and this device helps monitor that flow effectively. Common Types of Flow Meters Flow meters are devices used to measure the volumetric or mass flow rate of a liquid or gas. There are various types, each suited for different applications and fluids. Common types include differential pressure meters, velocity-based meters, and positive displacement meters. While this product is a hall effect flow sensor, other types like ultrasonic or magnetic flow meters also exist. A peak expiratory flow meter, for example, is a medical device used to measure lung function, which is a different application entirely. Key Types & How They Work This product is a hall effect flow sensor, which works by detecting changes in a magnetic field. As water flows through the sensor, a ball structure rotates, generating a series of pulses that correspond to the flow rate. Other flow meters operate on different principles. For instance, some measure the pressure drop across an obstruction, while others use sound waves or electromagnetic fields to determine flow. The brass construction of this specific sensor ensures durability in water measurement applications. Velocity-Based Meters Velocity-based meters determine flow by measuring the speed of the fluid. This brass hall effect flow sensor operates on a similar principle, where the rotation of an internal ball structure is directly related to the water's velocity. The faster the water flows, the quicker the ball rotates, and the more pulses are generated. These pulses are then interpreted to provide an accurate measurement of the water flow. This method is effective for various pipe diameters, including 1/2 inch, 3/4 inch, and 1 inch. Differential Pressure (DP) Meters Differential pressure (DP) meters measure flow by creating a constriction in the flow path and then measuring the pressure drop across that constriction. The greater the flow rate, the larger the pressure difference. While this specific product is a hall effect flow sensor, DP meters are another common method for liquid control. They are often used in industrial settings for various fluids. This brass sensor, however, directly measures water flow using a hall effect mechanism, providing an electricity-free solution.