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Principle and Selection of Air Velocity Flow Transmitter in Duct

Flow Rate is the total volume of air flowing through the section in unit time. The accurate unit air volume can be obtained by multiplying the average velocity on the cross section by the cross section area. 


Pitot Air Flow Velocity Meter

Principle of Pitoty Type Air Flow Velocity Transmitter



However, it is difficult to measure the average wind speed on the cross section, which is related to the medium of the fluid, atmospheric pressure and the roughness of the pipe wall. The difference between the maximum value and the minimum value is several times, and the flow distribution is not even. Therefore, the error of calculating the unit air volume is very large by measuring the air speed at a certain point multiplied by the cross-sectional area. The selection, installation and application of air velocity flow transmitter are more like a specific project. The selection is unreasonable, the cost is high, and the accuracy is poor.


High Temperance Air Flow Velocity Sensor

GE-374-Ex High Temperance Air Flow Velocity Sensor

Max temperature 600C, ATEX Explosion Proof, IP68 water proof




GE-374 air velocity flow transmitter is an ideal choice for ventilation measurement. Its working principle is to measure the fluid pressure in the pipeline through Pitot tube. By applying the velocity formula, the velocity of the fluid in the pipeline can be calculated. The air speed transmitter relies on the physical characteristics of S-type pitot tube. So we are not afraid of pollution and corrosion. High stability and low maintenance cost.

The Air velocity transmitter is smart and can be installed in a narrow space with split installation. The performance of GE-374 air flow sensor is extremely stable, with a normal life of at least 5 years. Now the latest explosion-proof series is launched, providing the ATEX explosion-proof certificate provided by Hong Kong Quality Certification Center.

Main applications of GE-374 Air Velocity Sensor: environmental measurement, air transmission, ventilation wind speed, clean room, air balance, fan / motor / blower, blast furnace speed, refrigerator, paint shop.


GE-374 Air Flow Velocity Transmitter

GE-374 Air Flow Velocity Transmitter

GE-374 Air Flow Velocity Transmitter is designed for air velocity measuring, CE certificate, ATEX Explosion Proof is available, monitoring and controll...



The production and testing of GE-374 wind speed sensor are strictly in accordance with ISO9001 quality system, A.YITE TECH has granted ISO9001 quality certification system certificate and ISO14001 environmental protection system certificate issued by Hong Kong Quality Assurance Center many years ago. The product quality is very reliable.

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