Apparatus for monitoring the flow of fluid media in a pipeline

In an apparatus for monitoring the flow of fluid in a pipeline, said apparatus having a hollow housing mounted on an outer wall of the pipeline with a control element movably supported therein, the control element being movable from an initial position to a position triggering a switching operation and being biased toward its initial position by a biasing means, the improvement comprising:

• a support ring fixedly coupled to an inner wall of the hollow housing and having a central opening therein;
• a connecting element extending through a wall of the pipeline and through said central opening into the housing, said connecting element having a first end connected to a flow deflecting body to form the control element;
• means pivotably mounting said connecting element to said support ring;
• and
• means for inhibiting fluid flow from said pipeline and through said central opening into said housing, said means being mounted on said connecting element in front of said central opening so that a controlled minimal of fluid takes place between said pipeline and the interior of said housing.