5.2.1.2 Vertical Flare Pipe
The transducer holders may also be mounted on a vertical section of flare pipe. The
orientation of the transducer holders in this case does not matter, as the possibility of fluid
filling the upstream transducer holder is the same regardless of the orientation. In this case
the transducer holders may be mounted in a position that suits space and access
requirements. If this is the chosen orientation, then the upstream transducer holder must be
periodically checked for liquid accumulation and emptied, if necessary. Figure 4 shows the
transducer holder orientations for a vertical pipe. A continuous drain system may be installed
by leading the fluids back into the pipeline at a lower point of the flare stack.
Figure 4: Vertical flare boom with the transducer holders and transducers installed.
The orientation of the transducers is irrelevant for installation on a vertical pipe run.