Trường hợp công ty về Analysis of Common Misconceptions in Vortex Flow Meter Selection
Analysis of Common Misconceptions in Vortex Flow Meter Selection
2025-11-17
01 Misconceptions in Vortex Flow Meter Selection
Why can't we "choose the instrument caliber based on the pipeline size"?
Process pipeline size ≠ flow meter caliber—this detail is crucial to the measurement accuracy of the entire system.
In industrial production processes, flow measurement serves as a crucial basis for monitoring production and conducting economic accounting. As a commonly used flow measurement instrument, the vortex flow meter is widely applied due to its advantages such as simple structure, no moving parts, and a wide measurement range.
However, many users have a common misconception during selection—simply choosing the vortex flow meter's caliber based on the process pipeline size. Today, we will analyze this from the perspective of misconception interpretation.
Misconception Interpretation: Why Can't We Select Based on Process Pipeline Diameter?
1. Uniqueness of Factory Calibration
Each vortex flow meter undergoes strict debugging and calibration before leaving the factory, and the flow coefficient of each instrument is unique. This determines that during selection, the instrument caliber must be determined based on the specific flow range provided by the manufacturer (usually in m³/h), rather than simply matching the pipeline size.
2. Impact of Medium Operating Conditions
When the actual measured medium operating conditions do not match the calibration conditions provided by the manufacturer, especially when there are significant differences in medium density and viscosity, the measurement accuracy will be significantly affected. In this case, it is necessary to determine the lower limit flow through professional calculations, then the upper limit flow, and finally the appropriate instrument caliber.
