A Flow Meter is a device used to measure the flow rate or volume of a fluid (liquid or gas) passing through a pipe. These meters are essential in various industries, including water management, oil and gas, chemical processing, and HVAC systems. The choice of a flow meter depends on factors like fluid type, accuracy requirements, and operating conditions.

Flow meters are categorized based on their measurement principles.

Mechanical flow meters, such as turbine and positive displacement meters, rely on moving parts to measure flow. Velocity-based meters, including ultrasonic, electromagnetic, and vortex meters, determine flow by measuring fluid velocity. Mass flow meters, like Coriolis and thermal meters, measure the actual mass of the fluid rather than volume, making them useful in precise industrial applications. Additionally, differential pressure meters, such as Venturi and orifice plate meters, measure flow based on pressure differences.

These meters play a crucial role in various applications. In water management, they help monitor consumption and detect leaks. Industries use them for accurate liquid and gas flow measurement in manufacturing and processing. In healthcare, thermal and ultrasonic meters measure oxygen and anesthesia gases. Choosing the right flow meter ensures efficiency, cost savings, and accurate measurement for different systems.