Flowmeter

A flowmeter is a device used to measure the flow rate or quantity of a fluid (gas or liquid) that is passing through a pipe or other closed conduit. There are many different types of flowmeters, each designed for specific applications and types of fluids.

Some common types of flowmeters include:

• Positive displacement flowmeters: measure the flow rate by counting the number of times a known volume of fluid is displaced.
• Velocity flowmeters: measure the flow rate by measuring the velocity of the fluid. Examples include turbine flowmeters and ultrasonic flowmeters.
• Mass flowmeters: measure the flow rate by measuring the mass of the fluid that is passing through the meter.
• Differential pressure flowmeters: measure the flow rate by measuring the pressure drop across a restriction in the flow path. Examples include orifice plates and venturi tubes.

Flowmeters are used in a wide variety of applications, including industrial process control, water treatment, and energy management. They are used to measure the flow of liquids, gases, or steam in pipelines or tanks.

All the flowmeters have different features and functions, thus the selection of the flowmeter depends on the specific application and the properties of the fluid being measured.