ball valve and drill the hole. The hole should be as close to 49.3 mm as possible, but care
should be taken to avoid damage to the ball valve. If possible, use a 49 mm drill and avoid
sharp edges.
5.3 Mounting the Ultrasonic Transducers
5.3.1 Determining the Correct Position for the Transducers
Fluenta will use a special gas proof measuring tool to find the correct position for the
transducers, as shown in Figure 22. The method is shown in the figure below. This is carried
out on site during installation of the transducers due to the fact that the entire length is
measured, including ball valves and gaskets. The transducer is thereafter positioned
correctly.
Figure 22: The gas-proof measuring tool.
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