Applications of a Flow Meter

May 20,2022

One of the considerations regarding the use of a flow meter is the type of flow, which can be open channel or closed conduit. Open channel is when the flow is open to the atmosphere, where closed conduit is when the flow is in a tube or pipe.


There are several features that need to be evaluated when determining the effectiveness of a flow meter. Remote monitoring, types of data, and the frequency of collection are a few of those factors. Below is a description of the applications for a flow meter.


Characteristics of a Fluid and Its Flow


The list of things a flow meter measures are pressure, temperature, density, viscosity, and vapor pressure, which are displayed as a single reading. A major function of flow meters is to monitor safety conditions such as toxicity, bubbles, the presence of abrasives, and transmission qualities.


Ranges of Pressure


Any mass needs force to move, which is part of Newton‘s Second Law of Motion. In the case of fluids, in a confined pipe, the force that is applied to move the liquid is pressure. The density of the liquid determines the amount of necessary pressure, which indicates the flow rate. When a flow meter is measuring density and pressure, it uses that data to calculate flow rate.


Ranges of Temperature


In terms of flowmeters, the measurement of temperature is referred to as thermal flow measurement, which measures heat transfer as a gas flows past a surface. A temperature sensor provides a measurement of the liquids or gases‘ temperature, while a heated flow sensor measures the amount of heat transfer of the material‘s flow.




The design of a flow meter is the primary device, a transducer, and a transmitter combined into a single instrument. Positive flow meters give precise real-time output and accurate measurements with a signal directly connected to the force of the gas or fluid. The output signal is connected to the flow meter system of a turbine or rotator wheel, plate, channel, nozzle, laminar, and pilot table system.


Flow meters are made from stainless steel plates, brass, aluminum, PVC, PVDF, and nylon. Their design depends on the viscosity of the measured substance, cleanliness of the flow, pressure, temperature, and pipe size. They can be custom manufactured to measure any form of flow.