How to Choose the Right Vortex Flowmeter: 8 Key Factors for Perfect Application Matching

Vortex flowmeter is also known as Karman vortex flowmeter. It is a separation flowmeter made of the principle of natural oscillation of fluid. When a fluid flows at a sufficiently large velocity through an object perpendicular to the direction of the fluid, if the object is of appropriate size, it will produce a neatly aligned and reversed vortex train behind the object along two parallel lines.

The method and requirements of temperature compensation will vary according to the specific application. In general, temperature compensation can be used in the following ways:

Nominal diameter: DN15～DN300mm
Accuracy: liquid ±1.0%, gas (steam) ±1.5%, plug-in ±2.5%
Structure form: Integrated, split, temperature and pressure compensation
Applicable medium: liquid, gas, saturated steam, superheated steam

In industrial flow measurement, vortex flowmeters have become the preferred equipment for measuring the flow of gases, liquids and steam in many industries due to their wide application range, high accuracy and low pressure loss. However, in the face of a rich variety of models and complex working conditions in the market, how to scientifically select the right type has become a key issue. This article sorts out five key factors and specific selection steps for you, helping you make an accurate choice.

The ethane Flow Meter Purchase Guide is designed to help you choose the best solution for your needs. In the purchase process, it is necessary to consider the nature, use, safety, measurement accuracy, stability, cost and other factors. Here is a detailed shopping guide:

Vortex flowmeter is mainly used for the flow measurement of industrial pipeline medium fluids, such as gas, liquid, vapor and other media. In addition to the characteristics of the aforementioned vortex flowmeter, it also has the following characteristics:

Vortex flowmeter is widely used because of its wide range, small pressure loss, medium accuracy, linear output, no moving parts, high reliability, small maintenance, medium low price, relatively high performance and price characteristics.

1, pulse vortex flowmeter is a kind of high measurement accuracy, simple installation, small maintenance, a wide range of meters, is currently widely used in petrochemical, metallurgy, textile, urban construction, energy and other industries.

The causes of faults in the on-site metering system of the steam flowmeter can be summarized into two major reasons: one is caused by the flowmeter or its related equipment; The second reason is not related to the flowmeter, that is, the flowmeter is normal, but the fault is caused by environmental or system reasons.

The insertion vortex flowmeter is mainly used for the flow measurement of large-diameter gas, liquid and steam medium in industrial pipelines. In order to ensure the accuracy of its measurement, the following points should be noted when installing:

In industrial process control, energy measurement and gas/liquid flow monitoring, vortex flowmeters have become an important choice for flow measurement due to their advantages such as simple structure, wide range and high stability. However, in the face of different working conditions and application requirements, how to make the correct selection is of vital importance. This article will start from the key parameters to provide you with a detailed analysis of the selection points of vortex flowmeters, helping you achieve the best configuration.

Vortex flowmeter is used by many industries for its simple structure, small maintenance, constant accuracy, easy operation and wide application range.

Due to the compressibility of the gas, its flow measurement is more complex than that of the liquid, and the output signal of the vortex flowmeter is related to the gas density in addition to the input signal, and the density of the gas is a function of temperature and pressure (referred to as temperature and pressure).

5 main points of vortex flow meter selection

Vortex flowmeter has high requirements for installation and working environment, and the front and rear straight pipe sections must be installed in accordance with the specifications.

Vortex flowmeters have advantages that other flowmeters do not have and have developed rapidly since their introduction. According to statistics, the proportion of vortex flowmeters used in developed countries such as Japan, Europe and America has increased significantly and they have been widely applied in various fields. Judging from the current trend, vortex flowmeters will play a dominant role in future flow meters and are ideal alternatives to orifice plate flowmeters.

Whether vortex flowmeters need temperature and pressure compensation when measuring steam mainly depends on the nature of the steam being measured and the requirements for measurement accuracy.

1. Vibration effect

Compressed air is generated by air compressor or high pressure fan. When these devices are in operation, they all have varying degrees of vibration, and sometimes the vibration is relatively strong, and this vibration is transmitted through the connecting pipe. When selecting and determining the position of the vortex flowmeter, this influencing factor should be fully considered. In various detection methods, the anti-vibration performance of the instrument is not the same due to different detection components. For the vortex street of the detection element, the vibration resistance can reach 0.5~1G. When determining the installation position of the vortex flowmeter, it should be as far away from the power equipment such as air compressors and fans as possible.

As a very special medium, steam will show special phenomena and problems in the process of vortex flowmeter measurement. The key problem is that the vapor density value deviates too much from the design value, which brings significant measurement errors to the measurement results. At present, the density measuring instrument with mature technology has not been successfully applied, which brings certain difficulties to the steam flow measurement.

Vortex flowmeter is a new flowmeter successfully developed on the basis of Karman vortex principle. Vortex flowmeter is suitable for measuring the mass flow and volume flow of superheated steam, saturated steam, compressed air, general gas, water and low corrosive liquid. How to ensure the accuracy of vortex flowmeter measurement during installation?

Vortex flowmeter is a kind of flow measuring instrument widely used in the industrial field. Its superior performance and versatility make it play an important role in the measurement of liquid and gas medium. Vortex flowmeter can not only measure a variety of liquid media, but also suitable for a variety of gases, providing reliable flow data support for industrial production and process control.

Intelligent vortex flowmeters can measure air. Vortex flowmeter is a new flowmeter for flow measurement based on Karman vortex principle. It has good medium adaptability and can directly measure the volume flow of various media (including air). When measuring air, the vortex flowmeter generates regular vortices through the triangular column vortex generator set in the fluid, and the frequency of these vortices is proportional to the average velocity of the measured medium, so that the air flow can be calculated.

In chemical processing plants, vortex flow meters play a crucial role in measuring the flow of corrosive or abrasive liquids. Their resistance to harsh chemical environments, combined with their ability to offer accurate readings even in challenging conditions, makes them valuable assets for ensuring the efficiency and safety of chemical processes. The meters’ capability to handle different fluid types and maintain accuracy contributes to their widespread adoption in chemical industries.

In industrial flow measurement, selecting the right instrument is not just about specifications—it’s about matching the device to real-world operating conditions. A vortex flowmeter is widely used for steam, compressed air, and various gases and liquids due to its simple structure, low pressure loss, and wide turndown ratio.

Vortex flowmeters, as important equipment in industrial flow measurement, whether their selection is correct directly affects the measurement accuracy and reliability. During the selection process, the diameter and range ratio are two of the most crucial parameters, which jointly determine whether the flowmeter can perform well under specific working conditions.

The installation of the vortex flowmeter has different provisions, used to measure different measured media, different positions, then the installation method is not the same, the attention point is different, generally speaking, the vortex flowmeter has the following specified points:

Vortex flowmeter is a velocity flowmeter, which measures the volume flow rate in the working state.

Vortex steam flowmeter is one of the main flowmeter products, widely used in petroleum, chemical industry, metallurgy, heating and other departments. Test and measure the flow of liquid, gas and steam.

Vortex flowmeter is a kind of instrument device to measure the flow of pipeline fluid, and it works by the principle of velocity vortex. Vortex flowmeter has two kinds of volume and mass flow measurement, which can be selected according to the situation of the field.

The intelligent vortex flowmeter can measure air. The vortex flowmeter is a new type of flowmeter that measures flow based on the Karman vortex street principle. It has excellent medium adaptability and can directly measure the working volume flow of various media (including air).