HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Some installation precautions for vortex flow meters

2019-07-17View Original

Thread Content

  The vortex flow meter is based on the Karman vortex street principle; it works by introducing a non-streamlined vortex generator into the fluid, which in turn generates two rows of regular vortices alternately on either side of it. Therefore, there are many things to keep in mind during installation; following these guidelines will ensure the accuracy of the data. 1) The selection of the instrument diameter should be determined based on the flow range; during installation, the flow direction indicator of the sensor must be aligned with the flow direction of the fluid in the pipeline. 2) There are various options for connection methods; when using special flanges to weld with straight pipe sections, it is absolutely necessary not to weld while the sensor is in place. 3) The installation of the sealing ring in the flange groove must be carried out before installing the sensor. The location selection for pressure and temperature measurement points requires that the pressure sampling point be located 3–5 DN downstream of the sensor, while the temperature measurement point should be situated 5–8 DN downstream. 4) When measuring high-temperature media, avoid wrapping the sensor’s connection rod with insulating material. 5) The routing of the shielded cable connecting the sensor must ensure it stays away from environments with strong electromagnetic field interference. It must not be laid together with high-voltage cables. Shielded cables must not be coiled, and their maximum length should not exceed 200 meters. 6) Vortex flow meters are not suitable for measuring high-viscosity liquids. Before installing the sensor, the pipeline should be cleaned to prevent the sensor from becoming clogged during operation. The pipeline used to measure the liquid must be filled with the liquid being measured to avoid interference from bubbles. 7) When selecting a model, if two different pipe diameters of vortex flow meters are available based on the flow rate calculation, it is recommended to choose the meter with the smaller diameter, as this improves the measurement accuracy and reduces costs.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.