Flow measuring device has boundary part of surface component subjected to pressure corresponding to pressure in main flow pipe

摘要

A boundary part (9) of a surface component (8) to which a flow sensor is attached constitutes at least part of a sensor-side bypass boundary surface. In the boundary section, the flow sensitive element (21) of the flow sensor is connected to the bypass flow. The boundary part of the surface component is subjected to a pressure corresponding to the pressure (p1) in the main flow pipe.