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      Measurement principles of Venturi -pitot tube

      Venturi pitot tube is also known as dual small venturi tube, which is made of two components of venturi tube and  pitot tube. The general pulse hole is connected at the high-voltage side, and the throat of the small venturi tube is connected at the low-voltage side. The characteristics of the venturi-pitot tube is that high pressure difference can be obtained under the low pressure loss, it is about 10 times the differential pressure generated by the pitot tube, in this way the differential pressure meter with larger range can be used for measurement, and the accuracy and stability of the big differential pressure can be easily ensured and the venturi -pitot tube  is mainly used for measuring the flow rate of the clean gas. 

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