5/2/2024 0 Comments Paddle wheel flow metersIf the rating is IP67, do not install the meter below 1 meter of water. Water protection: If the meter has an IP65 protection rating, do not install the meter underwater.Location environment: Ensure the installation location is not in direct sunlight and the ambient temperature is within the range recommended by the manufacturer.Inspection: Before installation, inspect the flow meter for any damage incurred during shipping or handling.Drain and clean the section where the flow meter will be installed. Preparation: Turn off and isolate the piping system.Learn more in our material chemical resistance article. Chemical compatibility: Verify that the materials of the flow meter are compatible with the fluid being measured to avoid corrosion or degradation.The flow meter should be installed where the velocity profile is symmetrical (Figure 2 labeled D).įigure 3: Effect of flow conditioners: asymmetric velocity profile (A) and symmetric velocity profile (B). The elbow creates a heavily asymmetric velocity profile (Figure 2 labeled A), which should be fixed using straight pipe lengths (Figure 2 labeled B) before the fluid arrives at the flow meter. A general rule of thumb is to have a minimum distance of 3 times the pipe diameter (3 x DN) upstream and a minimum distance of 2 times the pipe diameter (2 x DN) downstream from any interfering elements.įigure 2 shows the flow through an elbow connector. Straight pipe requirements: To avoid flow disturbances, install the flow meter in a straight run of pipe with a minimum length of straight piping upstream and downstream from the meter, according to the manufacturer's recommendations.For electromagnetic flow meters, also avoid locations with magnetic interference.Ensure easy accessibility for maintenance and reading. Location: Choose a site where the flow meter will not be subjected to extreme temperatures or vibrations.Avoid installing at high points in the piping system to prevent the presence of trapped air. Pipe conditions: The flow meter should be installed in a section of pipe that is always full of liquid.Always read a specific meter's installation instructions carefully before attempting to install. Specific flow meters from specific brands may have installation requirements not discussed here. This section covers general flow meter installation guidelines for many different types of flow meters. View our online selection of flow meters!
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