types of flow meters and their applications pdf

Types of flow meters and their applications pdf

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Fluid and flow characteristics

What Flowmeter Will Work Best for Your Application?

Flowmeters: What Type Will Work Best for Your Application?

From single-use to magnetic to variable-area to Coriolis, the options in flowmeters are plentiful. Yet there are distinct differences in functionality, accuracy, and certainly price. Ultrasonic sensors that accurately and non-invasively measure through commonly used tubing is an excellent multi-use option that is positioned on the higher end of the price scale. If low unit price is desirable without sacrificing accuracy, then single-use turbine type sensors are a good option particularly if working fluid is low viscosity. If higher viscosity working fluids are involved, the single-use flow through disposable ultrasonic sensors are the best fit.

Fluid and flow characteristics

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What Flowmeter Will Work Best for Your Application?

Flow Meter requirements vary, from mass flow to volume flow and beyond. From Coriolis flow meters , to magnetic flow meters , we offer a comprehensive, industry-leading portfolio of flow measurement devices. Coriolis meters are generally considered the most repeatably accurate flow meters available today. Coriolis meters are ideal for any application where high accuracy is a key factor for consistent product quality, safety and revenue. They are often applied in custody transfer applications due to their excellent accuracy over broad conditions and low maintenance requirements. Differential Pressure is the oldest industrial measurement technology still in use today, with a proven documented history of performance.

Flow measurement is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. The common types of flowmeters with industrial applications are listed below:. Flow measurement methods other than positive-displacement flowmeters rely on forces produced by the flowing stream as it overcomes a known constriction, to indirectly calculate flow. Flow may be measured by measuring the velocity of fluid over a known area. For very large flows, tracer methods may be used to deduce the flow rate from the change in concentration of a dye or radioisotope. Both gas and liquid flow can be measured in physical quantities of kind volumetric or mass flow rates , with units such as liters per second or kilograms per second, respectively.

A flow meter or flow sensor is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc. It is also recommended that the cost of the installation be computed only after taking these steps. One of the most common flow measurement mistakes is the reversal of this sequence: instead of selecting a sensor which will perform properly, an attempt is made to justify the use of a device because it is less expensive. Those "inexpensive" purchases can be the most costly installations.


Volumetric Flowmeters. Differential Head type. Orifice plates. Venturi meters. Annubar. Differential Area type (Rotameters) Electromagnetic flowmeters. Ultrasonic flowmeters. Turbine flowmeters. Vortex flowmeters. Positive Displacement Meters.


Flowmeters: What Type Will Work Best for Your Application?

Ed Edwards. Flow sensors are a class of device that is designed to measure the flow rate of a gas such as air or a liquid through a pipe or conduit. Flow measurement is important for the control of many industrial processes and for the operation of machinery at optimum levels of performance and efficiency.

A flow meter is used in different types of applications to measure the volumetric flowrate or mass flowrate. The specific application defines the type and capacity of the flow meter. Fluids, gases and liquids, are measured in terms of volumetric flowrate and mass flowrate.

A flow meter is a device that measures the flow rate of a fluid. Flow meters are flow measuring instruments used to measure the linear, nonlinear, mass, or volumetric flow rate of a gas or a liquid. Flow meters are also known as Flow Gauges. This article will provide the following information in short:.

What Type of Flow Meter Do You Need?

Flow is classified into open channel flow and closed conduit flow. Open channel flow occur when the flowing stream has a free or unconstrained surface open to the atmosphere.

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